./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX --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 2415b069e76079d7377abcf176cebf6165f82bbd9ec5224d7f58a06f904590c0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:13:18,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:13:18,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:13:18,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:13:18,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:13:18,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:13:18,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:13:18,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:13:18,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:13:18,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:13:18,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:13:18,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:13:18,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:13:18,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:13:18,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:13:18,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:13:18,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:13:18,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:13:18,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:13:18,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:13:18,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:13:18,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:13:18,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:13:18,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:13:18,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:13:18,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:13:18,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:13:18,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:13:18,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:13:18,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:13:18,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:13:18,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:13:18,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:13:18,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:13:18,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:13:18,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:13:18,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:13:18,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:13:18,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:13:18,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:13:18,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:13:18,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:13:18,251 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2415b069e76079d7377abcf176cebf6165f82bbd9ec5224d7f58a06f904590c0 [2024-11-08 19:13:18,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:13:18,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:13:18,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:13:18,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:13:18,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:13:18,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c Unable to find full path for "g++" [2024-11-08 19:13:20,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:13:21,281 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:13:21,284 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-08 19:13:21,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/data/31dc1ce0e/84d69fc3b90b4c5e8b1a9c5cb0b063e2/FLAG14d7dbd4e [2024-11-08 19:13:21,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/data/31dc1ce0e/84d69fc3b90b4c5e8b1a9c5cb0b063e2 [2024-11-08 19:13:21,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:13:21,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:13:21,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:13:21,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:13:21,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:13:21,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:13:21" (1/1) ... [2024-11-08 19:13:21,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364e4c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:21, skipping insertion in model container [2024-11-08 19:13:21,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:13:21" (1/1) ... [2024-11-08 19:13:21,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:13:22,079 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[20528,20541] [2024-11-08 19:13:22,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[28276,28289] [2024-11-08 19:13:23,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:13:23,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:13:23,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[20528,20541] [2024-11-08 19:13:23,375 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[28276,28289] [2024-11-08 19:13:23,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:13:24,001 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:13:24,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24 WrapperNode [2024-11-08 19:13:24,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:13:24,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:13:24,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:13:24,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:13:24,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,514 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5215 [2024-11-08 19:13:24,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:13:24,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:13:24,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:13:24,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:13:24,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,790 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]. [2024-11-08 19:13:24,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:24,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:25,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:25,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:25,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:25,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:13:25,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:13:25,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:13:25,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:13:25,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (1/1) ... [2024-11-08 19:13:25,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:13:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:13:25,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:13:25,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b0b3aa-6f54-4536-9ca0-7fb0e5001f92/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:13:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:13:25,543 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:13:25,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:13:31,739 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-08 19:13:31,740 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:13:31,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:13:31,802 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 19:13:31,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:31 BoogieIcfgContainer [2024-11-08 19:13:31,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:13:31,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:13:31,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:13:31,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:13:31,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:13:21" (1/3) ... [2024-11-08 19:13:31,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45559917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:31, skipping insertion in model container [2024-11-08 19:13:31,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:13:24" (2/3) ... [2024-11-08 19:13:31,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45559917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:31, skipping insertion in model container [2024-11-08 19:13:31,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:31" (3/3) ... [2024-11-08 19:13:31,815 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-08 19:13:31,838 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:13:31,839 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:13:31,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:13:31,989 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;@8f970d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:13:31,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:13:32,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 19:13:32,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:32,023 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] [2024-11-08 19:13:32,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:32,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2088064619, now seen corresponding path program 1 times [2024-11-08 19:13:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220286032] [2024-11-08 19:13:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220286032] [2024-11-08 19:13:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220286032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:32,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:13:32,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588712823] [2024-11-08 19:13:32,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:32,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:13:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:32,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:13:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:13:32,492 INFO L87 Difference]: Start difference. First operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:32,661 INFO L93 Difference]: Finished difference Result 1802 states and 3420 transitions. [2024-11-08 19:13:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:13:32,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 19:13:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:32,722 INFO L225 Difference]: With dead ends: 1802 [2024-11-08 19:13:32,724 INFO L226 Difference]: Without dead ends: 864 [2024-11-08 19:13:32,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:13:32,739 INFO L432 NwaCegarLoop]: 1696 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:32,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-08 19:13:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-08 19:13:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8932714617169373) internal successors, (1632), 863 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1632 transitions. [2024-11-08 19:13:32,863 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1632 transitions. Word has length 28 [2024-11-08 19:13:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:32,864 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1632 transitions. [2024-11-08 19:13:32,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1632 transitions. [2024-11-08 19:13:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 19:13:32,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:32,867 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] [2024-11-08 19:13:32,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:13:32,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:32,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1869209901, now seen corresponding path program 1 times [2024-11-08 19:13:32,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:32,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233446010] [2024-11-08 19:13:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:33,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:33,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233446010] [2024-11-08 19:13:33,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233446010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:33,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:33,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:33,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790860325] [2024-11-08 19:13:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:33,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:33,246 INFO L87 Difference]: Start difference. First operand 864 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:33,434 INFO L93 Difference]: Finished difference Result 922 states and 1723 transitions. [2024-11-08 19:13:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 19:13:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:33,440 INFO L225 Difference]: With dead ends: 922 [2024-11-08 19:13:33,440 INFO L226 Difference]: Without dead ends: 864 [2024-11-08 19:13:33,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:33,442 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 0 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:33,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6465 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:33,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-08 19:13:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-08 19:13:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8352668213457077) internal successors, (1582), 863 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1582 transitions. [2024-11-08 19:13:33,472 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1582 transitions. Word has length 28 [2024-11-08 19:13:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:33,473 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1582 transitions. [2024-11-08 19:13:33,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1582 transitions. [2024-11-08 19:13:33,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 19:13:33,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:33,476 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] [2024-11-08 19:13:33,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:13:33,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:33,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:33,477 INFO L85 PathProgramCache]: Analyzing trace with hash -567277825, now seen corresponding path program 1 times [2024-11-08 19:13:33,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:33,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366084498] [2024-11-08 19:13:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:33,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:33,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:33,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366084498] [2024-11-08 19:13:33,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366084498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:33,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:33,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:13:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609226078] [2024-11-08 19:13:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:33,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:33,704 INFO L87 Difference]: Start difference. First operand 864 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:39,221 INFO L93 Difference]: Finished difference Result 2368 states and 4455 transitions. [2024-11-08 19:13:39,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:39,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 19:13:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:39,230 INFO L225 Difference]: With dead ends: 2368 [2024-11-08 19:13:39,230 INFO L226 Difference]: Without dead ends: 1615 [2024-11-08 19:13:39,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:39,233 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 877 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:39,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 618 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-08 19:13:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-08 19:13:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2024-11-08 19:13:39,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1613 states have (on average 1.5877247365158091) internal successors, (2561), 1614 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:39,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2561 transitions. [2024-11-08 19:13:39,354 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2561 transitions. Word has length 67 [2024-11-08 19:13:39,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:39,355 INFO L471 AbstractCegarLoop]: Abstraction has 1615 states and 2561 transitions. [2024-11-08 19:13:39,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2561 transitions. [2024-11-08 19:13:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 19:13:39,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:39,358 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] [2024-11-08 19:13:39,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:13:39,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:39,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1125859954, now seen corresponding path program 1 times [2024-11-08 19:13:39,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:39,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29247687] [2024-11-08 19:13:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:39,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:39,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29247687] [2024-11-08 19:13:39,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29247687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:39,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:39,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686386851] [2024-11-08 19:13:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:39,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:39,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:39,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:39,832 INFO L87 Difference]: Start difference. First operand 1615 states and 2561 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:40,549 INFO L93 Difference]: Finished difference Result 2371 states and 3779 transitions. [2024-11-08 19:13:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:13:40,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-08 19:13:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:40,562 INFO L225 Difference]: With dead ends: 2371 [2024-11-08 19:13:40,562 INFO L226 Difference]: Without dead ends: 2317 [2024-11-08 19:13:40,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 19:13:40,565 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 11503 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11503 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:40,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11503 Valid, 5134 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:13:40,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-11-08 19:13:40,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1667. [2024-11-08 19:13:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.5885885885885886) internal successors, (2645), 1666 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:40,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2645 transitions. [2024-11-08 19:13:40,638 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2645 transitions. Word has length 77 [2024-11-08 19:13:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:40,639 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2645 transitions. [2024-11-08 19:13:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2645 transitions. [2024-11-08 19:13:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 19:13:40,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:40,643 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] [2024-11-08 19:13:40,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:13:40,643 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1729540790, now seen corresponding path program 1 times [2024-11-08 19:13:40,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:40,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148752807] [2024-11-08 19:13:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:40,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:41,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148752807] [2024-11-08 19:13:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148752807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:41,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:41,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:41,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423256711] [2024-11-08 19:13:41,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:41,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:41,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:41,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:41,527 INFO L87 Difference]: Start difference. First operand 1667 states and 2645 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:42,049 INFO L93 Difference]: Finished difference Result 1775 states and 2817 transitions. [2024-11-08 19:13:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:13:42,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-08 19:13:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:42,058 INFO L225 Difference]: With dead ends: 1775 [2024-11-08 19:13:42,058 INFO L226 Difference]: Without dead ends: 1669 [2024-11-08 19:13:42,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:13:42,061 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 4557 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4557 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:42,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4557 Valid, 2077 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:13:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-08 19:13:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1667. [2024-11-08 19:13:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.587987987987988) internal successors, (2644), 1666 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2644 transitions. [2024-11-08 19:13:42,120 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2644 transitions. Word has length 79 [2024-11-08 19:13:42,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:42,121 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2644 transitions. [2024-11-08 19:13:42,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2644 transitions. [2024-11-08 19:13:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 19:13:42,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:42,123 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] [2024-11-08 19:13:42,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:13:42,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:42,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1796034302, now seen corresponding path program 1 times [2024-11-08 19:13:42,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105570078] [2024-11-08 19:13:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:42,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:42,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:42,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105570078] [2024-11-08 19:13:42,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105570078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:42,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:42,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215372768] [2024-11-08 19:13:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:42,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:42,277 INFO L87 Difference]: Start difference. First operand 1667 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:42,328 INFO L93 Difference]: Finished difference Result 1868 states and 2965 transitions. [2024-11-08 19:13:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:42,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-08 19:13:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:42,336 INFO L225 Difference]: With dead ends: 1868 [2024-11-08 19:13:42,337 INFO L226 Difference]: Without dead ends: 1762 [2024-11-08 19:13:42,338 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 [2024-11-08 19:13:42,339 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:42,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1663 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-08 19:13:42,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1760. [2024-11-08 19:13:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1758 states have (on average 1.587599544937429) internal successors, (2791), 1759 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2791 transitions. [2024-11-08 19:13:42,398 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2791 transitions. Word has length 79 [2024-11-08 19:13:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:42,399 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2791 transitions. [2024-11-08 19:13:42,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2791 transitions. [2024-11-08 19:13:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 19:13:42,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:42,401 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] [2024-11-08 19:13:42,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:13:42,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:42,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1804087444, now seen corresponding path program 1 times [2024-11-08 19:13:42,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:42,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12334569] [2024-11-08 19:13:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:42,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:42,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12334569] [2024-11-08 19:13:42,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12334569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:42,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:42,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:13:42,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428432391] [2024-11-08 19:13:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:42,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:13:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:13:42,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:13:42,853 INFO L87 Difference]: Start difference. First operand 1760 states and 2791 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:42,948 INFO L93 Difference]: Finished difference Result 1768 states and 2800 transitions. [2024-11-08 19:13:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:13:42,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 19:13:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:42,956 INFO L225 Difference]: With dead ends: 1768 [2024-11-08 19:13:42,956 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 19:13:42,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:13:42,958 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:42,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11019 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 19:13:42,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1766. [2024-11-08 19:13:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.5850340136054422) internal successors, (2796), 1765 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2796 transitions. [2024-11-08 19:13:43,006 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2796 transitions. Word has length 80 [2024-11-08 19:13:43,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:43,007 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2796 transitions. [2024-11-08 19:13:43,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2796 transitions. [2024-11-08 19:13:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:43,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:43,009 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] [2024-11-08 19:13:43,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:13:43,009 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:43,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1639401366, now seen corresponding path program 1 times [2024-11-08 19:13:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132106420] [2024-11-08 19:13:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:43,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:43,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:43,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:43,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132106420] [2024-11-08 19:13:43,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132106420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:43,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:43,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:43,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623766544] [2024-11-08 19:13:43,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:43,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:43,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:43,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:43,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:43,109 INFO L87 Difference]: Start difference. First operand 1766 states and 2796 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:43,162 INFO L93 Difference]: Finished difference Result 1984 states and 3137 transitions. [2024-11-08 19:13:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:43,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:43,170 INFO L225 Difference]: With dead ends: 1984 [2024-11-08 19:13:43,170 INFO L226 Difference]: Without dead ends: 1872 [2024-11-08 19:13:43,172 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 [2024-11-08 19:13:43,172 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:43,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-08 19:13:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1870. [2024-11-08 19:13:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1868 states have (on average 1.5829764453961457) internal successors, (2957), 1869 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2957 transitions. [2024-11-08 19:13:43,229 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2957 transitions. Word has length 81 [2024-11-08 19:13:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:43,230 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2957 transitions. [2024-11-08 19:13:43,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2957 transitions. [2024-11-08 19:13:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:43,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:43,232 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] [2024-11-08 19:13:43,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:13:43,232 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:43,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:43,233 INFO L85 PathProgramCache]: Analyzing trace with hash 302668138, now seen corresponding path program 1 times [2024-11-08 19:13:43,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:43,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809057344] [2024-11-08 19:13:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:43,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809057344] [2024-11-08 19:13:43,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809057344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:43,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:43,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356201331] [2024-11-08 19:13:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:43,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:43,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:43,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:43,337 INFO L87 Difference]: Start difference. First operand 1870 states and 2957 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:43,382 INFO L93 Difference]: Finished difference Result 2460 states and 3877 transitions. [2024-11-08 19:13:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:43,390 INFO L225 Difference]: With dead ends: 2460 [2024-11-08 19:13:43,390 INFO L226 Difference]: Without dead ends: 2153 [2024-11-08 19:13:43,392 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 [2024-11-08 19:13:43,392 INFO L432 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:43,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:43,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2024-11-08 19:13:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2151. [2024-11-08 19:13:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2149 states have (on average 1.577012563983248) internal successors, (3389), 2150 states have internal predecessors, (3389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3389 transitions. [2024-11-08 19:13:43,453 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3389 transitions. Word has length 81 [2024-11-08 19:13:43,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:43,454 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3389 transitions. [2024-11-08 19:13:43,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3389 transitions. [2024-11-08 19:13:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:43,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:43,456 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] [2024-11-08 19:13:43,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:13:43,456 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:43,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash 465582698, now seen corresponding path program 1 times [2024-11-08 19:13:43,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:43,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197064514] [2024-11-08 19:13:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:43,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197064514] [2024-11-08 19:13:43,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197064514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:43,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:43,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:43,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176136441] [2024-11-08 19:13:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:43,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:43,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:43,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:43,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:43,563 INFO L87 Difference]: Start difference. First operand 2151 states and 3389 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:43,621 INFO L93 Difference]: Finished difference Result 3279 states and 5131 transitions. [2024-11-08 19:13:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:43,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:43,632 INFO L225 Difference]: With dead ends: 3279 [2024-11-08 19:13:43,632 INFO L226 Difference]: Without dead ends: 2691 [2024-11-08 19:13:43,634 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 [2024-11-08 19:13:43,635 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:43,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-08 19:13:43,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2689. [2024-11-08 19:13:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2687 states have (on average 1.5649423148492743) internal successors, (4205), 2688 states have internal predecessors, (4205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 4205 transitions. [2024-11-08 19:13:43,725 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 4205 transitions. Word has length 81 [2024-11-08 19:13:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:43,725 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 4205 transitions. [2024-11-08 19:13:43,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 4205 transitions. [2024-11-08 19:13:43,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:43,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:43,727 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] [2024-11-08 19:13:43,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:13:43,727 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:43,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:43,728 INFO L85 PathProgramCache]: Analyzing trace with hash 729439082, now seen corresponding path program 1 times [2024-11-08 19:13:43,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:43,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620893043] [2024-11-08 19:13:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:43,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:43,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620893043] [2024-11-08 19:13:43,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620893043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:43,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:43,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:43,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209221671] [2024-11-08 19:13:43,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:43,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:43,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:43,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:43,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:43,849 INFO L87 Difference]: Start difference. First operand 2689 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:43,922 INFO L93 Difference]: Finished difference Result 4845 states and 7495 transitions. [2024-11-08 19:13:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:43,935 INFO L225 Difference]: With dead ends: 4845 [2024-11-08 19:13:43,936 INFO L226 Difference]: Without dead ends: 3719 [2024-11-08 19:13:43,938 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 [2024-11-08 19:13:43,939 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:43,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2024-11-08 19:13:44,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3717. [2024-11-08 19:13:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3715 states have (on average 1.5453566621803498) internal successors, (5741), 3716 states have internal predecessors, (5741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5741 transitions. [2024-11-08 19:13:44,049 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5741 transitions. Word has length 81 [2024-11-08 19:13:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:44,049 INFO L471 AbstractCegarLoop]: Abstraction has 3717 states and 5741 transitions. [2024-11-08 19:13:44,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5741 transitions. [2024-11-08 19:13:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:44,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:44,051 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] [2024-11-08 19:13:44,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:13:44,051 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:44,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash -247767702, now seen corresponding path program 1 times [2024-11-08 19:13:44,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:44,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545255915] [2024-11-08 19:13:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545255915] [2024-11-08 19:13:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545255915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:44,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:44,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065061343] [2024-11-08 19:13:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:44,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:44,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:44,136 INFO L87 Difference]: Start difference. First operand 3717 states and 5741 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:44,240 INFO L93 Difference]: Finished difference Result 7833 states and 11935 transitions. [2024-11-08 19:13:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:44,258 INFO L225 Difference]: With dead ends: 7833 [2024-11-08 19:13:44,258 INFO L226 Difference]: Without dead ends: 5679 [2024-11-08 19:13:44,262 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 [2024-11-08 19:13:44,263 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:44,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2024-11-08 19:13:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5677. [2024-11-08 19:13:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5675 states have (on average 1.5191189427312775) internal successors, (8621), 5676 states have internal predecessors, (8621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 8621 transitions. [2024-11-08 19:13:44,544 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 8621 transitions. Word has length 81 [2024-11-08 19:13:44,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:44,545 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 8621 transitions. [2024-11-08 19:13:44,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 8621 transitions. [2024-11-08 19:13:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:44,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:44,546 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] [2024-11-08 19:13:44,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:13:44,547 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1533165162, now seen corresponding path program 1 times [2024-11-08 19:13:44,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:44,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255538070] [2024-11-08 19:13:44,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:44,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:44,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:44,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255538070] [2024-11-08 19:13:44,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255538070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:44,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:44,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:44,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833883247] [2024-11-08 19:13:44,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:44,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:44,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:44,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:44,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:44,633 INFO L87 Difference]: Start difference. First operand 5677 states and 8621 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:44,814 INFO L93 Difference]: Finished difference Result 13521 states and 20239 transitions. [2024-11-08 19:13:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:44,839 INFO L225 Difference]: With dead ends: 13521 [2024-11-08 19:13:44,839 INFO L226 Difference]: Without dead ends: 9407 [2024-11-08 19:13:44,845 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 [2024-11-08 19:13:44,846 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:44,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9407 states. [2024-11-08 19:13:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9407 to 9405. [2024-11-08 19:13:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9405 states, 9403 states have (on average 1.48856747846432) internal successors, (13997), 9404 states have internal predecessors, (13997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9405 states to 9405 states and 13997 transitions. [2024-11-08 19:13:45,160 INFO L78 Accepts]: Start accepts. Automaton has 9405 states and 13997 transitions. Word has length 81 [2024-11-08 19:13:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:45,160 INFO L471 AbstractCegarLoop]: Abstraction has 9405 states and 13997 transitions. [2024-11-08 19:13:45,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9405 states and 13997 transitions. [2024-11-08 19:13:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:13:45,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:45,162 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] [2024-11-08 19:13:45,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:13:45,163 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:45,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1967701098, now seen corresponding path program 1 times [2024-11-08 19:13:45,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:45,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261092027] [2024-11-08 19:13:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:45,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:13:45,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:45,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261092027] [2024-11-08 19:13:45,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261092027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:45,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:45,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:13:45,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929172743] [2024-11-08 19:13:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:45,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:13:45,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:45,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:13:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:13:45,283 INFO L87 Difference]: Start difference. First operand 9405 states and 13997 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:45,603 INFO L93 Difference]: Finished difference Result 24321 states and 35695 transitions. [2024-11-08 19:13:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:13:45,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:13:45,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:45,639 INFO L225 Difference]: With dead ends: 24321 [2024-11-08 19:13:45,639 INFO L226 Difference]: Without dead ends: 16479 [2024-11-08 19:13:45,652 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 [2024-11-08 19:13:45,652 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:45,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2024-11-08 19:13:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16477. [2024-11-08 19:13:46,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16477 states, 16475 states have (on average 1.4555993930197269) internal successors, (23981), 16476 states have internal predecessors, (23981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16477 states to 16477 states and 23981 transitions. [2024-11-08 19:13:46,306 INFO L78 Accepts]: Start accepts. Automaton has 16477 states and 23981 transitions. Word has length 81 [2024-11-08 19:13:46,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:46,306 INFO L471 AbstractCegarLoop]: Abstraction has 16477 states and 23981 transitions. [2024-11-08 19:13:46,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 16477 states and 23981 transitions. [2024-11-08 19:13:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:13:46,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:46,311 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:46,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:13:46,312 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:46,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1192167219, now seen corresponding path program 1 times [2024-11-08 19:13:46,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:46,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659885198] [2024-11-08 19:13:46,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:46,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:13:46,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:46,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659885198] [2024-11-08 19:13:46,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659885198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:46,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:46,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:46,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776904211] [2024-11-08 19:13:46,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:46,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:46,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:46,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:46,660 INFO L87 Difference]: Start difference. First operand 16477 states and 23981 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:49,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:49,369 INFO L93 Difference]: Finished difference Result 119533 states and 172469 transitions. [2024-11-08 19:13:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:13:49,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:13:49,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:49,629 INFO L225 Difference]: With dead ends: 119533 [2024-11-08 19:13:49,629 INFO L226 Difference]: Without dead ends: 109035 [2024-11-08 19:13:49,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:13:49,665 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 9868 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:49,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4656 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:13:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109035 states. [2024-11-08 19:13:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109035 to 29213. [2024-11-08 19:13:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29213 states, 29211 states have (on average 1.4431892095443497) internal successors, (42157), 29212 states have internal predecessors, (42157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29213 states to 29213 states and 42157 transitions. [2024-11-08 19:13:51,440 INFO L78 Accepts]: Start accepts. Automaton has 29213 states and 42157 transitions. Word has length 104 [2024-11-08 19:13:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:51,441 INFO L471 AbstractCegarLoop]: Abstraction has 29213 states and 42157 transitions. [2024-11-08 19:13:51,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29213 states and 42157 transitions. [2024-11-08 19:13:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:13:51,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:51,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:51,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:13:51,450 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:51,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:51,450 INFO L85 PathProgramCache]: Analyzing trace with hash 749902285, now seen corresponding path program 1 times [2024-11-08 19:13:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:51,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351995405] [2024-11-08 19:13:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:51,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:13:51,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:51,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351995405] [2024-11-08 19:13:51,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351995405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:51,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:51,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121142001] [2024-11-08 19:13:51,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:51,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:51,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:51,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:51,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:51,823 INFO L87 Difference]: Start difference. First operand 29213 states and 42157 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:55,195 INFO L93 Difference]: Finished difference Result 134445 states and 193845 transitions. [2024-11-08 19:13:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:13:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:13:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:55,477 INFO L225 Difference]: With dead ends: 134445 [2024-11-08 19:13:55,478 INFO L226 Difference]: Without dead ends: 119531 [2024-11-08 19:13:55,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:13:55,550 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9868 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4639 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:55,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4639 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:13:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119531 states. [2024-11-08 19:13:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119531 to 49373. [2024-11-08 19:13:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49373 states, 49371 states have (on average 1.4359239229507201) internal successors, (70893), 49372 states have internal predecessors, (70893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49373 states to 49373 states and 70893 transitions. [2024-11-08 19:13:58,366 INFO L78 Accepts]: Start accepts. Automaton has 49373 states and 70893 transitions. Word has length 104 [2024-11-08 19:13:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:58,367 INFO L471 AbstractCegarLoop]: Abstraction has 49373 states and 70893 transitions. [2024-11-08 19:13:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:13:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 49373 states and 70893 transitions. [2024-11-08 19:13:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:13:58,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:58,375 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:13:58,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:13:58,376 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:58,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash 912816845, now seen corresponding path program 1 times [2024-11-08 19:13:58,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:13:58,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821786016] [2024-11-08 19:13:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:13:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 19:13:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:13:58,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821786016] [2024-11-08 19:13:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821786016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:58,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:58,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:13:58,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456992564] [2024-11-08 19:13:58,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:58,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:13:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:13:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:13:58,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:13:58,755 INFO L87 Difference]: Start difference. First operand 49373 states and 70893 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:03,057 INFO L93 Difference]: Finished difference Result 149357 states and 215157 transitions. [2024-11-08 19:14:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:14:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:14:03,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:03,309 INFO L225 Difference]: With dead ends: 149357 [2024-11-08 19:14:03,309 INFO L226 Difference]: Without dead ends: 134443 [2024-11-08 19:14:03,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:14:03,348 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9892 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9892 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:03,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9892 Valid, 4545 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:14:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134443 states. [2024-11-08 19:14:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134443 to 64285. [2024-11-08 19:14:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64285 states, 64283 states have (on average 1.434360561890391) internal successors, (92205), 64284 states have internal predecessors, (92205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64285 states to 64285 states and 92205 transitions. [2024-11-08 19:14:06,528 INFO L78 Accepts]: Start accepts. Automaton has 64285 states and 92205 transitions. Word has length 104 [2024-11-08 19:14:06,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:06,529 INFO L471 AbstractCegarLoop]: Abstraction has 64285 states and 92205 transitions. [2024-11-08 19:14:06,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 64285 states and 92205 transitions. [2024-11-08 19:14:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:14:06,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:06,540 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:06,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:14:06,541 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:06,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1176673229, now seen corresponding path program 1 times [2024-11-08 19:14:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:06,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316092300] [2024-11-08 19:14:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:14:07,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:07,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316092300] [2024-11-08 19:14:07,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316092300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:07,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:07,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:14:07,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715450315] [2024-11-08 19:14:07,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:07,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:14:07,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:07,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:14:07,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:14:07,183 INFO L87 Difference]: Start difference. First operand 64285 states and 92205 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:12,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:12,450 INFO L93 Difference]: Finished difference Result 164269 states and 236469 transitions. [2024-11-08 19:14:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:14:12,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:14:12,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:12,811 INFO L225 Difference]: With dead ends: 164269 [2024-11-08 19:14:12,812 INFO L226 Difference]: Without dead ends: 149355 [2024-11-08 19:14:12,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:14:12,841 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 9980 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9980 SdHoareTripleChecker+Valid, 4510 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:12,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9980 Valid, 4510 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:14:12,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149355 states. [2024-11-08 19:14:16,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149355 to 79197. [2024-11-08 19:14:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79197 states, 79195 states have (on average 1.4333859460824547) internal successors, (113517), 79196 states have internal predecessors, (113517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79197 states to 79197 states and 113517 transitions. [2024-11-08 19:14:16,717 INFO L78 Accepts]: Start accepts. Automaton has 79197 states and 113517 transitions. Word has length 104 [2024-11-08 19:14:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:16,718 INFO L471 AbstractCegarLoop]: Abstraction has 79197 states and 113517 transitions. [2024-11-08 19:14:16,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 79197 states and 113517 transitions. [2024-11-08 19:14:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:14:16,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:16,728 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:16,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:14:16,728 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:16,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:16,729 INFO L85 PathProgramCache]: Analyzing trace with hash 199466445, now seen corresponding path program 1 times [2024-11-08 19:14:16,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:16,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221374653] [2024-11-08 19:14:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 19:14:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:17,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221374653] [2024-11-08 19:14:17,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221374653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:17,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:17,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:14:17,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292988209] [2024-11-08 19:14:17,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:17,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:14:17,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:14:17,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:14:17,145 INFO L87 Difference]: Start difference. First operand 79197 states and 113517 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:23,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:23,362 INFO L93 Difference]: Finished difference Result 179181 states and 257781 transitions. [2024-11-08 19:14:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:14:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 19:14:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:23,607 INFO L225 Difference]: With dead ends: 179181 [2024-11-08 19:14:23,607 INFO L226 Difference]: Without dead ends: 164267 [2024-11-08 19:14:23,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:14:23,645 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 10065 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:23,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4548 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:14:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164267 states. [2024-11-08 19:14:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164267 to 94109. [2024-11-08 19:14:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94109 states, 94107 states have (on average 1.4327202014727916) internal successors, (134829), 94108 states have internal predecessors, (134829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94109 states to 94109 states and 134829 transitions. [2024-11-08 19:14:28,554 INFO L78 Accepts]: Start accepts. Automaton has 94109 states and 134829 transitions. Word has length 104 [2024-11-08 19:14:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:28,554 INFO L471 AbstractCegarLoop]: Abstraction has 94109 states and 134829 transitions. [2024-11-08 19:14:28,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:14:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 94109 states and 134829 transitions. [2024-11-08 19:14:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 19:14:28,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:28,566 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:28,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:14:28,566 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:28,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:28,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1980399309, now seen corresponding path program 1 times [2024-11-08 19:14:28,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:28,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642423433] [2024-11-08 19:14:28,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:28,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 19:14:28,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642423433] [2024-11-08 19:14:28,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642423433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:28,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:28,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:14:28,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439595585] [2024-11-08 19:14:28,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:28,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:14:28,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:28,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:14:28,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:14:28,892 INFO L87 Difference]: Start difference. First operand 94109 states and 134829 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)