./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 fde4aa10540dafc8826e147080809d5acc35a439830c8d5d4d25a271d8a78822 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:23:03,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:03,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:03,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:03,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:03,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:03,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:03,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:03,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:03,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:03,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:03,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:03,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:03,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:03,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:03,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:03,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:03,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:03,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:03,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:03,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:03,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:03,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:03,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:03,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:03,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:03,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:03,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:03,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:03,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:03,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:03,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:03,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:03,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:03,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:03,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:03,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:03,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:03,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:03,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:03,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:03,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:23:03,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:03,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:03,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:03,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:03,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:03,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:03,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:03,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:03,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:03,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:03,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:03,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:03,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:03,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:03,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:03,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:03,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:03,326 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:03,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:03,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:03,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:03,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:03,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:03,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:03,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:03,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:03,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:03,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:03,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:03,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:03,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:03,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:03,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:03,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde4aa10540dafc8826e147080809d5acc35a439830c8d5d4d25a271d8a78822 [2022-11-18 20:23:03,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:03,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:03,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:03,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:03,670 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:03,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c [2022-11-18 20:23:03,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/data/e7425f5b6/058d4017c655431baca7f6a532e3df52/FLAG522e50028 [2022-11-18 20:23:04,704 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:04,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c [2022-11-18 20:23:04,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/data/e7425f5b6/058d4017c655431baca7f6a532e3df52/FLAG522e50028 [2022-11-18 20:23:05,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/data/e7425f5b6/058d4017c655431baca7f6a532e3df52 [2022-11-18 20:23:05,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:05,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:05,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:05,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:05,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:05,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:05" (1/1) ... [2022-11-18 20:23:05,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42821068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:05, skipping insertion in model container [2022-11-18 20:23:05,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:05" (1/1) ... [2022-11-18 20:23:05,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:05,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:07,633 WARN L234 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_bd449077-bd91-4fe2-8b59-7471433ffd43/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c[382357,382370] [2022-11-18 20:23:07,664 WARN L234 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_bd449077-bd91-4fe2-8b59-7471433ffd43/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c[383339,383352] [2022-11-18 20:23:07,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:07,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:09,199 WARN L234 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_bd449077-bd91-4fe2-8b59-7471433ffd43/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c[382357,382370] [2022-11-18 20:23:09,202 WARN L234 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_bd449077-bd91-4fe2-8b59-7471433ffd43/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c[383339,383352] [2022-11-18 20:23:09,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:09,299 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:09,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09 WrapperNode [2022-11-18 20:23:09,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:09,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:09,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:09,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:09,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:09,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:09,755 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12972 [2022-11-18 20:23:09,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:09,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:09,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:09,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:09,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:09,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:09,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:09,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,240 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:10,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:10,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:10,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:10,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (1/1) ... [2022-11-18 20:23:10,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:10,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:10,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:10,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd449077-bd91-4fe2-8b59-7471433ffd43/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:23:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 20:23:10,499 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 20:23:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 20:23:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 20:23:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 20:23:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 20:23:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-18 20:23:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-18 20:23:10,500 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 20:23:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 20:23:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 20:23:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 20:23:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 20:23:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 20:23:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:23:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:10,678 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:10,680 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:19,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:19,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:19,447 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-18 20:23:19,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:19 BoogieIcfgContainer [2022-11-18 20:23:19,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:19,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:19,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:19,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:19,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:05" (1/3) ... [2022-11-18 20:23:19,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d79dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:19, skipping insertion in model container [2022-11-18 20:23:19,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:09" (2/3) ... [2022-11-18 20:23:19,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d79dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:19, skipping insertion in model container [2022-11-18 20:23:19,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:19" (3/3) ... [2022-11-18 20:23:19,464 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.08.cil-2.c [2022-11-18 20:23:19,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:19,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:23:19,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:19,618 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6d60b769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:19,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:23:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 2473 states, 2439 states have (on average 1.848708487084871) internal successors, (4509), 2444 states have internal predecessors, (4509), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-18 20:23:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:19,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:19,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:19,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:19,657 INFO L85 PathProgramCache]: Analyzing trace with hash -970277371, now seen corresponding path program 1 times [2022-11-18 20:23:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:19,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026009950] [2022-11-18 20:23:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:20,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:20,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026009950] [2022-11-18 20:23:20,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026009950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:20,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:20,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:23:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084468474] [2022-11-18 20:23:20,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:20,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:23:20,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:23:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:20,289 INFO L87 Difference]: Start difference. First operand has 2473 states, 2439 states have (on average 1.848708487084871) internal successors, (4509), 2444 states have internal predecessors, (4509), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:22,238 INFO L93 Difference]: Finished difference Result 5037 states and 9272 transitions. [2022-11-18 20:23:22,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:22,279 INFO L225 Difference]: With dead ends: 5037 [2022-11-18 20:23:22,279 INFO L226 Difference]: Without dead ends: 2503 [2022-11-18 20:23:22,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:23:22,295 INFO L413 NwaCegarLoop]: 4293 mSDtfsCounter, 752 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 16672 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:22,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 16672 Invalid, 781 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:23:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2022-11-18 20:23:22,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2405. [2022-11-18 20:23:22,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2373 states have (on average 1.8348082595870205) internal successors, (4354), 2376 states have internal predecessors, (4354), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-18 20:23:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 4400 transitions. [2022-11-18 20:23:22,481 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 4400 transitions. Word has length 135 [2022-11-18 20:23:22,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:22,482 INFO L495 AbstractCegarLoop]: Abstraction has 2405 states and 4400 transitions. [2022-11-18 20:23:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 4400 transitions. [2022-11-18 20:23:22,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:22,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:22,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:22,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:23:22,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash -540619065, now seen corresponding path program 1 times [2022-11-18 20:23:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:22,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510257574] [2022-11-18 20:23:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:22,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:22,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:22,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510257574] [2022-11-18 20:23:22,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510257574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:22,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:22,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:23:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672924668] [2022-11-18 20:23:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:22,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:22,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:22,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:22,918 INFO L87 Difference]: Start difference. First operand 2405 states and 4400 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:25,931 INFO L93 Difference]: Finished difference Result 3147 states and 5591 transitions. [2022-11-18 20:23:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:23:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:25,947 INFO L225 Difference]: With dead ends: 3147 [2022-11-18 20:23:25,947 INFO L226 Difference]: Without dead ends: 2879 [2022-11-18 20:23:25,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:23:25,952 INFO L413 NwaCegarLoop]: 4229 mSDtfsCounter, 5074 mSDsluCounter, 12604 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 16833 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:25,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5089 Valid, 16833 Invalid, 1784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 20:23:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2022-11-18 20:23:26,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2682. [2022-11-18 20:23:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2626 states have (on average 1.8111195734958112) internal successors, (4756), 2630 states have internal predecessors, (4756), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-18 20:23:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 4839 transitions. [2022-11-18 20:23:26,095 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 4839 transitions. Word has length 135 [2022-11-18 20:23:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:26,096 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 4839 transitions. [2022-11-18 20:23:26,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 4839 transitions. [2022-11-18 20:23:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:26,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:26,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:23:26,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:26,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1902621501, now seen corresponding path program 1 times [2022-11-18 20:23:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:26,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666296933] [2022-11-18 20:23:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:26,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666296933] [2022-11-18 20:23:26,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666296933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:26,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:26,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259859354] [2022-11-18 20:23:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:26,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:26,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:26,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:26,432 INFO L87 Difference]: Start difference. First operand 2682 states and 4839 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:29,875 INFO L93 Difference]: Finished difference Result 3810 states and 6649 transitions. [2022-11-18 20:23:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:29,891 INFO L225 Difference]: With dead ends: 3810 [2022-11-18 20:23:29,891 INFO L226 Difference]: Without dead ends: 3265 [2022-11-18 20:23:29,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:29,895 INFO L413 NwaCegarLoop]: 4387 mSDtfsCounter, 5091 mSDsluCounter, 17275 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5106 SdHoareTripleChecker+Valid, 21662 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:29,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5106 Valid, 21662 Invalid, 2605 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:23:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-11-18 20:23:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 2940. [2022-11-18 20:23:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2860 states have (on average 1.7902097902097902) internal successors, (5120), 2865 states have internal predecessors, (5120), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-11-18 20:23:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 5239 transitions. [2022-11-18 20:23:30,046 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 5239 transitions. Word has length 135 [2022-11-18 20:23:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:30,046 INFO L495 AbstractCegarLoop]: Abstraction has 2940 states and 5239 transitions. [2022-11-18 20:23:30,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:30,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 5239 transitions. [2022-11-18 20:23:30,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:30,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:30,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:30,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:23:30,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:30,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:30,050 INFO L85 PathProgramCache]: Analyzing trace with hash 26310725, now seen corresponding path program 1 times [2022-11-18 20:23:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:30,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187419272] [2022-11-18 20:23:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:30,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:30,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187419272] [2022-11-18 20:23:30,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187419272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:30,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:30,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:30,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088710522] [2022-11-18 20:23:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:30,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:30,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:30,301 INFO L87 Difference]: Start difference. First operand 2940 states and 5239 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:33,514 INFO L93 Difference]: Finished difference Result 4787 states and 8197 transitions. [2022-11-18 20:23:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:33,534 INFO L225 Difference]: With dead ends: 4787 [2022-11-18 20:23:33,537 INFO L226 Difference]: Without dead ends: 3984 [2022-11-18 20:23:33,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:33,550 INFO L413 NwaCegarLoop]: 4234 mSDtfsCounter, 5173 mSDsluCounter, 16785 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5188 SdHoareTripleChecker+Valid, 21019 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:33,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5188 Valid, 21019 Invalid, 2345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 20:23:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2022-11-18 20:23:33,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3457. [2022-11-18 20:23:33,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3329 states have (on average 1.756984079303094) internal successors, (5849), 3336 states have internal predecessors, (5849), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-11-18 20:23:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 6044 transitions. [2022-11-18 20:23:33,778 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 6044 transitions. Word has length 135 [2022-11-18 20:23:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:33,782 INFO L495 AbstractCegarLoop]: Abstraction has 3457 states and 6044 transitions. [2022-11-18 20:23:33,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:33,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 6044 transitions. [2022-11-18 20:23:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:33,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:33,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:33,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:23:33,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2028196995, now seen corresponding path program 1 times [2022-11-18 20:23:33,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:33,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113764658] [2022-11-18 20:23:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:34,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:34,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113764658] [2022-11-18 20:23:34,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113764658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:34,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:34,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:34,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435881463] [2022-11-18 20:23:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:34,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:34,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:34,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:34,044 INFO L87 Difference]: Start difference. First operand 3457 states and 6044 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:37,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:37,403 INFO L93 Difference]: Finished difference Result 6668 states and 11162 transitions. [2022-11-18 20:23:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:37,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:37,425 INFO L225 Difference]: With dead ends: 6668 [2022-11-18 20:23:37,426 INFO L226 Difference]: Without dead ends: 5348 [2022-11-18 20:23:37,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:37,431 INFO L413 NwaCegarLoop]: 4385 mSDtfsCounter, 5089 mSDsluCounter, 17275 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 21660 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:37,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5104 Valid, 21660 Invalid, 2596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 20:23:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2022-11-18 20:23:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 4492. [2022-11-18 20:23:37,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 4268 states have (on average 1.7120431115276475) internal successors, (7307), 4279 states have internal predecessors, (7307), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-11-18 20:23:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 7660 transitions. [2022-11-18 20:23:37,741 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 7660 transitions. Word has length 135 [2022-11-18 20:23:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:37,742 INFO L495 AbstractCegarLoop]: Abstraction has 4492 states and 7660 transitions. [2022-11-18 20:23:37,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 7660 transitions. [2022-11-18 20:23:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:37,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:37,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:37,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:23:37,745 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash -539625339, now seen corresponding path program 1 times [2022-11-18 20:23:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:37,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140119478] [2022-11-18 20:23:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:37,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:38,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:38,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140119478] [2022-11-18 20:23:38,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140119478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:38,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:38,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701181552] [2022-11-18 20:23:38,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:38,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:38,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:38,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:38,006 INFO L87 Difference]: Start difference. First operand 4492 states and 7660 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:41,896 INFO L93 Difference]: Finished difference Result 10422 states and 17096 transitions. [2022-11-18 20:23:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:41,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:41,951 INFO L225 Difference]: With dead ends: 10422 [2022-11-18 20:23:41,951 INFO L226 Difference]: Without dead ends: 8067 [2022-11-18 20:23:41,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:41,967 INFO L413 NwaCegarLoop]: 4385 mSDtfsCounter, 5085 mSDsluCounter, 17275 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21660 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:41,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21660 Invalid, 2568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 20:23:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-11-18 20:23:42,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 6576. [2022-11-18 20:23:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6576 states, 6160 states have (on average 1.663474025974026) internal successors, (10247), 6179 states have internal predecessors, (10247), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-11-18 20:23:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 10934 transitions. [2022-11-18 20:23:42,566 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 10934 transitions. Word has length 135 [2022-11-18 20:23:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:42,567 INFO L495 AbstractCegarLoop]: Abstraction has 6576 states and 10934 transitions. [2022-11-18 20:23:42,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 10934 transitions. [2022-11-18 20:23:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:42,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:42,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:42,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:23:42,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2107979015, now seen corresponding path program 1 times [2022-11-18 20:23:42,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478031726] [2022-11-18 20:23:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:42,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:42,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:42,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478031726] [2022-11-18 20:23:42,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478031726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:42,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:42,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459840910] [2022-11-18 20:23:42,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:42,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:42,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:42,824 INFO L87 Difference]: Start difference. First operand 6576 states and 10934 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:46,974 INFO L93 Difference]: Finished difference Result 17948 states and 29056 transitions. [2022-11-18 20:23:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:47,018 INFO L225 Difference]: With dead ends: 17948 [2022-11-18 20:23:47,018 INFO L226 Difference]: Without dead ends: 13509 [2022-11-18 20:23:47,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:47,033 INFO L413 NwaCegarLoop]: 4385 mSDtfsCounter, 5084 mSDsluCounter, 17275 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21660 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:47,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21660 Invalid, 2555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 20:23:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13509 states. [2022-11-18 20:23:47,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13509 to 10757. [2022-11-18 20:23:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10757 states, 9957 states have (on average 1.6214723310234007) internal successors, (16145), 9992 states have internal predecessors, (16145), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-11-18 20:23:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10757 states to 10757 states and 17554 transitions. [2022-11-18 20:23:47,845 INFO L78 Accepts]: Start accepts. Automaton has 10757 states and 17554 transitions. Word has length 135 [2022-11-18 20:23:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:47,845 INFO L495 AbstractCegarLoop]: Abstraction has 10757 states and 17554 transitions. [2022-11-18 20:23:47,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 10757 states and 17554 transitions. [2022-11-18 20:23:47,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:47,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:47,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:47,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:23:47,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:47,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -23371707, now seen corresponding path program 1 times [2022-11-18 20:23:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:47,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642346001] [2022-11-18 20:23:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:47,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:48,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:48,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642346001] [2022-11-18 20:23:48,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642346001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:48,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:48,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324053150] [2022-11-18 20:23:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:48,060 INFO L87 Difference]: Start difference. First operand 10757 states and 17554 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:50,790 INFO L93 Difference]: Finished difference Result 22268 states and 36159 transitions. [2022-11-18 20:23:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:23:50,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:50,844 INFO L225 Difference]: With dead ends: 22268 [2022-11-18 20:23:50,844 INFO L226 Difference]: Without dead ends: 13648 [2022-11-18 20:23:50,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:23:50,875 INFO L413 NwaCegarLoop]: 4187 mSDtfsCounter, 4904 mSDsluCounter, 12434 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 16621 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:50,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4920 Valid, 16621 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:23:50,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13648 states. [2022-11-18 20:23:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13648 to 10757. [2022-11-18 20:23:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10757 states, 9957 states have (on average 1.6181580797428945) internal successors, (16112), 9992 states have internal predecessors, (16112), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-11-18 20:23:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10757 states to 10757 states and 17521 transitions. [2022-11-18 20:23:52,229 INFO L78 Accepts]: Start accepts. Automaton has 10757 states and 17521 transitions. Word has length 135 [2022-11-18 20:23:52,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:52,229 INFO L495 AbstractCegarLoop]: Abstraction has 10757 states and 17521 transitions. [2022-11-18 20:23:52,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 10757 states and 17521 transitions. [2022-11-18 20:23:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:52,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:52,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:52,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:23:52,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1061956281, now seen corresponding path program 1 times [2022-11-18 20:23:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973003661] [2022-11-18 20:23:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:23:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:23:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:23:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:52,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:52,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973003661] [2022-11-18 20:23:52,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973003661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:52,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:52,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:23:52,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675987734] [2022-11-18 20:23:52,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:52,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:23:52,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:23:52,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:52,470 INFO L87 Difference]: Start difference. First operand 10757 states and 17521 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:57,807 INFO L93 Difference]: Finished difference Result 32965 states and 52934 transitions. [2022-11-18 20:23:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:57,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:23:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:57,903 INFO L225 Difference]: With dead ends: 32965 [2022-11-18 20:23:57,903 INFO L226 Difference]: Without dead ends: 24345 [2022-11-18 20:23:57,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:57,934 INFO L413 NwaCegarLoop]: 4385 mSDtfsCounter, 5076 mSDsluCounter, 17275 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5091 SdHoareTripleChecker+Valid, 21660 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:57,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5091 Valid, 21660 Invalid, 2517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 20:23:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24345 states. [2022-11-18 20:23:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24345 to 19183. [2022-11-18 20:23:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19183 states, 17615 states have (on average 1.587056485949475) internal successors, (27956), 17682 states have internal predecessors, (27956), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-11-18 20:23:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19183 states to 19183 states and 30971 transitions. [2022-11-18 20:23:59,966 INFO L78 Accepts]: Start accepts. Automaton has 19183 states and 30971 transitions. Word has length 135 [2022-11-18 20:23:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:59,966 INFO L495 AbstractCegarLoop]: Abstraction has 19183 states and 30971 transitions. [2022-11-18 20:23:59,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:23:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19183 states and 30971 transitions. [2022-11-18 20:23:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:23:59,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:59,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:59,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:23:59,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1259845637, now seen corresponding path program 1 times [2022-11-18 20:23:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:59,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460390615] [2022-11-18 20:23:59,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:59,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:24:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:24:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:24:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:00,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:00,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460390615] [2022-11-18 20:24:00,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460390615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:00,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:00,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:00,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690306086] [2022-11-18 20:24:00,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:00,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:00,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:00,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:00,221 INFO L87 Difference]: Start difference. First operand 19183 states and 30971 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:24:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:10,577 INFO L93 Difference]: Finished difference Result 70813 states and 113344 transitions. [2022-11-18 20:24:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:24:10,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:24:10,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:10,781 INFO L225 Difference]: With dead ends: 70813 [2022-11-18 20:24:10,781 INFO L226 Difference]: Without dead ends: 53767 [2022-11-18 20:24:10,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:24:10,831 INFO L413 NwaCegarLoop]: 4383 mSDtfsCounter, 5405 mSDsluCounter, 17267 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5429 SdHoareTripleChecker+Valid, 21650 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:10,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5429 Valid, 21650 Invalid, 2502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 20:24:10,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53767 states. [2022-11-18 20:24:14,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53767 to 35904. [2022-11-18 20:24:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35904 states, 32864 states have (on average 1.5702896786757545) internal successors, (51606), 32995 states have internal predecessors, (51606), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2022-11-18 20:24:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35904 states to 35904 states and 58191 transitions. [2022-11-18 20:24:14,987 INFO L78 Accepts]: Start accepts. Automaton has 35904 states and 58191 transitions. Word has length 135 [2022-11-18 20:24:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:14,988 INFO L495 AbstractCegarLoop]: Abstraction has 35904 states and 58191 transitions. [2022-11-18 20:24:14,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:24:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 35904 states and 58191 transitions. [2022-11-18 20:24:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:24:15,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:15,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:24:15,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:24:15,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:24:15,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash -882014841, now seen corresponding path program 1 times [2022-11-18 20:24:15,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:15,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347371876] [2022-11-18 20:24:15,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:24:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:24:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:24:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:24:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:15,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:15,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347371876] [2022-11-18 20:24:15,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347371876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:15,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:15,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:15,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190462690] [2022-11-18 20:24:15,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:15,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:15,266 INFO L87 Difference]: Start difference. First operand 35904 states and 58191 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:24:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:34,682 INFO L93 Difference]: Finished difference Result 136652 states and 221030 transitions. [2022-11-18 20:24:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:24:34,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2022-11-18 20:24:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:35,064 INFO L225 Difference]: With dead ends: 136652 [2022-11-18 20:24:35,064 INFO L226 Difference]: Without dead ends: 102885 [2022-11-18 20:24:35,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:24:35,171 INFO L413 NwaCegarLoop]: 4242 mSDtfsCounter, 5216 mSDsluCounter, 16805 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 21047 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:35,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5230 Valid, 21047 Invalid, 2772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [89 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 20:24:35,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102885 states.