./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8 --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 d8722862ca37b1ee13dec8b9e420cd40ba7901837b8f3b6258499da6e8a2ca6f --- 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-2329fc7 [2022-12-13 20:46:29,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:46:29,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:46:29,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:46:29,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:46:29,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:46:29,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:46:29,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:46:29,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:46:29,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:46:29,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:46:29,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:46:29,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:46:29,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:46:29,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:46:29,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:46:29,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:46:29,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:46:29,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:46:29,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:46:29,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:46:29,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:46:29,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:46:29,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:46:29,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:46:29,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:46:29,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:46:29,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:46:29,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:46:29,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:46:29,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:46:29,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:46:29,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:46:29,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:46:29,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:46:29,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:46:29,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:46:29,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:46:29,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:46:29,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:46:29,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:46:29,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:46:29,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:46:29,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:46:29,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:46:29,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:46:29,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:46:29,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:46:29,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:46:29,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:46:29,419 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:46:29,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:46:29,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:46:29,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:46:29,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:46:29,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:46:29,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:46:29,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:46:29,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:46:29,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:46:29,423 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:46:29,424 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8722862ca37b1ee13dec8b9e420cd40ba7901837b8f3b6258499da6e8a2ca6f [2022-12-13 20:46:29,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:46:29,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:46:29,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:46:29,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:46:29,653 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:46:29,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/systemc/transmitter.05.cil.c [2022-12-13 20:46:32,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:46:32,395 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:46:32,395 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/sv-benchmarks/c/systemc/transmitter.05.cil.c [2022-12-13 20:46:32,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/data/d49085b40/8a768058276941e994020555c72dff74/FLAG9ecfcea35 [2022-12-13 20:46:32,810 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/data/d49085b40/8a768058276941e994020555c72dff74 [2022-12-13 20:46:32,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:46:32,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:46:32,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:46:32,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:46:32,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:46:32,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:32" (1/1) ... [2022-12-13 20:46:32,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af924e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:32, skipping insertion in model container [2022-12-13 20:46:32,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:32" (1/1) ... [2022-12-13 20:46:32,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:46:32,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:46:32,973 WARN L237 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_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/sv-benchmarks/c/systemc/transmitter.05.cil.c[706,719] [2022-12-13 20:46:33,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:46:33,032 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:46:33,039 WARN L237 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_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/sv-benchmarks/c/systemc/transmitter.05.cil.c[706,719] [2022-12-13 20:46:33,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:46:33,075 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:46:33,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33 WrapperNode [2022-12-13 20:46:33,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:46:33,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:46:33,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:46:33,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:46:33,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,107 INFO L138 Inliner]: procedures = 38, calls = 45, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 435 [2022-12-13 20:46:33,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:46:33,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:46:33,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:46:33,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:46:33,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:46:33,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:46:33,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:46:33,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:46:33,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (1/1) ... [2022-12-13 20:46:33,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:46:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:46:33,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:46:33,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0ee79b-c4c7-4654-8e0e-69e9e6f753d9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:46:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:46:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-13 20:46:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-13 20:46:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-13 20:46:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-13 20:46:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-12-13 20:46:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-12-13 20:46:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-13 20:46:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-13 20:46:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-13 20:46:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-13 20:46:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:46:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-13 20:46:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-13 20:46:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:46:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:46:33,246 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:46:33,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:46:33,627 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:46:33,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:46:33,635 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-12-13 20:46:33,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:33 BoogieIcfgContainer [2022-12-13 20:46:33,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:46:33,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:46:33,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:46:33,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:46:33,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:46:32" (1/3) ... [2022-12-13 20:46:33,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aea85be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:33, skipping insertion in model container [2022-12-13 20:46:33,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:33" (2/3) ... [2022-12-13 20:46:33,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aea85be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:33, skipping insertion in model container [2022-12-13 20:46:33,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:33" (3/3) ... [2022-12-13 20:46:33,646 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.05.cil.c [2022-12-13 20:46:33,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:46:33,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:46:33,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:46:33,721 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;@7ab6491b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:46:33,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:46:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 177 states have (on average 1.6214689265536724) internal successors, (287), 179 states have internal predecessors, (287), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-13 20:46:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:33,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:33,736 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] [2022-12-13 20:46:33,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:33,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1431612538, now seen corresponding path program 1 times [2022-12-13 20:46:33,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:33,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243917271] [2022-12-13 20:46:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:33,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:34,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:34,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:34,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243917271] [2022-12-13 20:46:34,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243917271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:34,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:34,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:46:34,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142946418] [2022-12-13 20:46:34,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:46:34,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:46:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:46:34,115 INFO L87 Difference]: Start difference. First operand has 203 states, 177 states have (on average 1.6214689265536724) internal successors, (287), 179 states have internal predecessors, (287), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:34,800 INFO L93 Difference]: Finished difference Result 462 states and 744 transitions. [2022-12-13 20:46:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:46:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:34,811 INFO L225 Difference]: With dead ends: 462 [2022-12-13 20:46:34,811 INFO L226 Difference]: Without dead ends: 261 [2022-12-13 20:46:34,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:46:34,817 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 499 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:34,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 400 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 20:46:34,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-12-13 20:46:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 198. [2022-12-13 20:46:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 173 states have (on average 1.5144508670520231) internal successors, (262), 174 states have internal predecessors, (262), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-13 20:46:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 298 transitions. [2022-12-13 20:46:34,877 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 298 transitions. Word has length 103 [2022-12-13 20:46:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:34,878 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 298 transitions. [2022-12-13 20:46:34,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:34,878 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 298 transitions. [2022-12-13 20:46:34,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:34,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:34,882 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] [2022-12-13 20:46:34,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:46:34,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:34,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash -374881336, now seen corresponding path program 1 times [2022-12-13 20:46:34,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:34,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543878106] [2022-12-13 20:46:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:34,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:35,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:35,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543878106] [2022-12-13 20:46:35,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543878106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:35,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:35,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:46:35,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648958498] [2022-12-13 20:46:35,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:35,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:46:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:46:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:46:35,101 INFO L87 Difference]: Start difference. First operand 198 states and 298 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:36,171 INFO L93 Difference]: Finished difference Result 697 states and 1083 transitions. [2022-12-13 20:46:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:46:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:36,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:36,176 INFO L225 Difference]: With dead ends: 697 [2022-12-13 20:46:36,176 INFO L226 Difference]: Without dead ends: 512 [2022-12-13 20:46:36,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:46:36,179 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 730 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:36,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 682 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 20:46:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-12-13 20:46:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 386. [2022-12-13 20:46:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 341 states have (on average 1.5249266862170088) internal successors, (520), 343 states have internal predecessors, (520), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-12-13 20:46:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 585 transitions. [2022-12-13 20:46:36,228 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 585 transitions. Word has length 103 [2022-12-13 20:46:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:36,229 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 585 transitions. [2022-12-13 20:46:36,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 585 transitions. [2022-12-13 20:46:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:36,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:36,231 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] [2022-12-13 20:46:36,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:46:36,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:36,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:36,232 INFO L85 PathProgramCache]: Analyzing trace with hash -81592503, now seen corresponding path program 1 times [2022-12-13 20:46:36,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:36,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376922755] [2022-12-13 20:46:36,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:36,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:36,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:36,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376922755] [2022-12-13 20:46:36,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376922755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:36,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:36,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:36,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281837624] [2022-12-13 20:46:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:36,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:36,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:36,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:36,417 INFO L87 Difference]: Start difference. First operand 386 states and 585 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:38,039 INFO L93 Difference]: Finished difference Result 1221 states and 1876 transitions. [2022-12-13 20:46:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:46:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:38,045 INFO L225 Difference]: With dead ends: 1221 [2022-12-13 20:46:38,045 INFO L226 Difference]: Without dead ends: 848 [2022-12-13 20:46:38,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:46:38,048 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 787 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:38,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1265 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 20:46:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-12-13 20:46:38,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 562. [2022-12-13 20:46:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.517102615694165) internal successors, (754), 500 states have internal predecessors, (754), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2022-12-13 20:46:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 847 transitions. [2022-12-13 20:46:38,105 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 847 transitions. Word has length 103 [2022-12-13 20:46:38,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:38,106 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 847 transitions. [2022-12-13 20:46:38,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:38,106 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 847 transitions. [2022-12-13 20:46:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:38,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:38,108 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] [2022-12-13 20:46:38,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:46:38,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:38,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:38,109 INFO L85 PathProgramCache]: Analyzing trace with hash -667868725, now seen corresponding path program 1 times [2022-12-13 20:46:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:38,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126108767] [2022-12-13 20:46:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:38,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126108767] [2022-12-13 20:46:38,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126108767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:38,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:38,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858756611] [2022-12-13 20:46:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:38,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:38,245 INFO L87 Difference]: Start difference. First operand 562 states and 847 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:39,739 INFO L93 Difference]: Finished difference Result 1875 states and 2872 transitions. [2022-12-13 20:46:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:46:39,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:39,746 INFO L225 Difference]: With dead ends: 1875 [2022-12-13 20:46:39,746 INFO L226 Difference]: Without dead ends: 1326 [2022-12-13 20:46:39,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:46:39,749 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 785 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:39,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1263 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:46:39,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-12-13 20:46:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 915. [2022-12-13 20:46:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 810 states have (on average 1.5098765432098766) internal successors, (1223), 815 states have internal predecessors, (1223), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2022-12-13 20:46:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1376 transitions. [2022-12-13 20:46:39,838 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1376 transitions. Word has length 103 [2022-12-13 20:46:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:39,838 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1376 transitions. [2022-12-13 20:46:39,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1376 transitions. [2022-12-13 20:46:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:39,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:39,841 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] [2022-12-13 20:46:39,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:46:39,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:39,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1668523785, now seen corresponding path program 1 times [2022-12-13 20:46:39,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:39,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504698418] [2022-12-13 20:46:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:39,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:39,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:39,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504698418] [2022-12-13 20:46:39,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504698418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:39,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:39,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:39,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453390499] [2022-12-13 20:46:39,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:39,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:39,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:39,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:39,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:39,991 INFO L87 Difference]: Start difference. First operand 915 states and 1376 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:41,413 INFO L93 Difference]: Finished difference Result 3138 states and 4789 transitions. [2022-12-13 20:46:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:46:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:41,419 INFO L225 Difference]: With dead ends: 3138 [2022-12-13 20:46:41,420 INFO L226 Difference]: Without dead ends: 2236 [2022-12-13 20:46:41,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:46:41,422 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 781 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:41,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1263 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 20:46:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-12-13 20:46:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1622. [2022-12-13 20:46:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1437 states have (on average 1.5038274182324287) internal successors, (2161), 1446 states have internal predecessors, (2161), 122 states have call successors, (122), 54 states have call predecessors, (122), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2022-12-13 20:46:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2440 transitions. [2022-12-13 20:46:41,545 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2440 transitions. Word has length 103 [2022-12-13 20:46:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:41,545 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 2440 transitions. [2022-12-13 20:46:41,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2440 transitions. [2022-12-13 20:46:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:41,549 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:41,549 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] [2022-12-13 20:46:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:46:41,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:41,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -749960693, now seen corresponding path program 1 times [2022-12-13 20:46:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:41,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74346562] [2022-12-13 20:46:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:41,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74346562] [2022-12-13 20:46:41,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74346562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:41,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:41,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:41,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047760459] [2022-12-13 20:46:41,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:41,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:41,671 INFO L87 Difference]: Start difference. First operand 1622 states and 2440 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:43,227 INFO L93 Difference]: Finished difference Result 5663 states and 8639 transitions. [2022-12-13 20:46:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:46:43,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:43,253 INFO L225 Difference]: With dead ends: 5663 [2022-12-13 20:46:43,253 INFO L226 Difference]: Without dead ends: 4054 [2022-12-13 20:46:43,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:46:43,258 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 783 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:43,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1263 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 20:46:43,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4054 states. [2022-12-13 20:46:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4054 to 3041. [2022-12-13 20:46:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 2696 states have (on average 1.4996290801186944) internal successors, (4043), 2713 states have internal predecessors, (4043), 226 states have call successors, (226), 102 states have call predecessors, (226), 118 states have return successors, (323), 241 states have call predecessors, (323), 226 states have call successors, (323) [2022-12-13 20:46:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4592 transitions. [2022-12-13 20:46:43,594 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4592 transitions. Word has length 103 [2022-12-13 20:46:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:43,595 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4592 transitions. [2022-12-13 20:46:43,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:43,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4592 transitions. [2022-12-13 20:46:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:43,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:43,599 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] [2022-12-13 20:46:43,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:46:43,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:43,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1665875657, now seen corresponding path program 1 times [2022-12-13 20:46:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:43,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037142515] [2022-12-13 20:46:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:43,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:43,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037142515] [2022-12-13 20:46:43,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037142515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:43,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:43,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105093095] [2022-12-13 20:46:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:43,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:43,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:43,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:43,702 INFO L87 Difference]: Start difference. First operand 3041 states and 4592 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:45,747 INFO L93 Difference]: Finished difference Result 11785 states and 17971 transitions. [2022-12-13 20:46:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:46:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:45,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:45,773 INFO L225 Difference]: With dead ends: 11785 [2022-12-13 20:46:45,773 INFO L226 Difference]: Without dead ends: 8757 [2022-12-13 20:46:45,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:46:45,779 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 822 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:45,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1253 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:46:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-12-13 20:46:46,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 5845. [2022-12-13 20:46:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5845 states, 5196 states have (on average 1.5032717474980755) internal successors, (7811), 5229 states have internal predecessors, (7811), 418 states have call successors, (418), 198 states have call predecessors, (418), 230 states have return successors, (693), 449 states have call predecessors, (693), 418 states have call successors, (693) [2022-12-13 20:46:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5845 states to 5845 states and 8922 transitions. [2022-12-13 20:46:46,260 INFO L78 Accepts]: Start accepts. Automaton has 5845 states and 8922 transitions. Word has length 103 [2022-12-13 20:46:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:46,261 INFO L495 AbstractCegarLoop]: Abstraction has 5845 states and 8922 transitions. [2022-12-13 20:46:46,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5845 states and 8922 transitions. [2022-12-13 20:46:46,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:46,265 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:46,265 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] [2022-12-13 20:46:46,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:46:46,266 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:46,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1062333689, now seen corresponding path program 1 times [2022-12-13 20:46:46,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:46,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699929859] [2022-12-13 20:46:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:46,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:46,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:46,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699929859] [2022-12-13 20:46:46,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699929859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:46,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:46,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:46,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834273728] [2022-12-13 20:46:46,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:46,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:46,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:46,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:46,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:46,356 INFO L87 Difference]: Start difference. First operand 5845 states and 8922 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:48,826 INFO L93 Difference]: Finished difference Result 22335 states and 34343 transitions. [2022-12-13 20:46:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:46:48,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:48,878 INFO L225 Difference]: With dead ends: 22335 [2022-12-13 20:46:48,878 INFO L226 Difference]: Without dead ends: 16503 [2022-12-13 20:46:48,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:46:48,890 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 968 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:48,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 849 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 20:46:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16503 states. [2022-12-13 20:46:49,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16503 to 11450. [2022-12-13 20:46:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11450 states, 10209 states have (on average 1.5058281908120286) internal successors, (15373), 10274 states have internal predecessors, (15373), 786 states have call successors, (786), 390 states have call predecessors, (786), 454 states have return successors, (1579), 849 states have call predecessors, (1579), 786 states have call successors, (1579) [2022-12-13 20:46:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11450 states to 11450 states and 17738 transitions. [2022-12-13 20:46:49,758 INFO L78 Accepts]: Start accepts. Automaton has 11450 states and 17738 transitions. Word has length 103 [2022-12-13 20:46:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:49,759 INFO L495 AbstractCegarLoop]: Abstraction has 11450 states and 17738 transitions. [2022-12-13 20:46:49,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11450 states and 17738 transitions. [2022-12-13 20:46:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:49,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:49,783 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] [2022-12-13 20:46:49,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:46:49,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2120171767, now seen corresponding path program 1 times [2022-12-13 20:46:49,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:49,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162619491] [2022-12-13 20:46:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:49,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:49,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:49,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162619491] [2022-12-13 20:46:49,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162619491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:49,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:49,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:49,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817474391] [2022-12-13 20:46:49,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:49,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:49,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:49,929 INFO L87 Difference]: Start difference. First operand 11450 states and 17738 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:53,850 INFO L93 Difference]: Finished difference Result 42890 states and 66837 transitions. [2022-12-13 20:46:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:46:53,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:46:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:53,928 INFO L225 Difference]: With dead ends: 42890 [2022-12-13 20:46:53,928 INFO L226 Difference]: Without dead ends: 31453 [2022-12-13 20:46:53,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:46:53,953 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 873 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:53,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1253 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:46:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31453 states. [2022-12-13 20:46:55,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31453 to 22627. [2022-12-13 20:46:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22627 states, 20234 states have (on average 1.5086982307008006) internal successors, (30527), 20363 states have internal predecessors, (30527), 1490 states have call successors, (1490), 774 states have call predecessors, (1490), 902 states have return successors, (3805), 1617 states have call predecessors, (3805), 1490 states have call successors, (3805) [2022-12-13 20:46:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22627 states to 22627 states and 35822 transitions. [2022-12-13 20:46:55,637 INFO L78 Accepts]: Start accepts. Automaton has 22627 states and 35822 transitions. Word has length 103 [2022-12-13 20:46:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:55,638 INFO L495 AbstractCegarLoop]: Abstraction has 22627 states and 35822 transitions. [2022-12-13 20:46:55,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:46:55,638 INFO L276 IsEmpty]: Start isEmpty. Operand 22627 states and 35822 transitions. [2022-12-13 20:46:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:46:55,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:55,668 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] [2022-12-13 20:46:55,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:46:55,669 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1032293063, now seen corresponding path program 1 times [2022-12-13 20:46:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051889451] [2022-12-13 20:46:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:46:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:46:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:46:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:55,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051889451] [2022-12-13 20:46:55,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051889451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:55,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:55,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:46:55,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724689498] [2022-12-13 20:46:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:55,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:46:55,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:55,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:46:55,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:46:55,772 INFO L87 Difference]: Start difference. First operand 22627 states and 35822 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:02,298 INFO L93 Difference]: Finished difference Result 82817 states and 131883 transitions. [2022-12-13 20:47:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:47:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:47:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:02,473 INFO L225 Difference]: With dead ends: 82817 [2022-12-13 20:47:02,473 INFO L226 Difference]: Without dead ends: 60203 [2022-12-13 20:47:02,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:47:02,527 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 789 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:02,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1253 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 20:47:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60203 states. [2022-12-13 20:47:05,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60203 to 44916. [2022-12-13 20:47:05,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44916 states, 40283 states have (on average 1.5117295136906388) internal successors, (60897), 40540 states have internal predecessors, (60897), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-12-13 20:47:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44916 states to 44916 states and 73382 transitions. [2022-12-13 20:47:05,873 INFO L78 Accepts]: Start accepts. Automaton has 44916 states and 73382 transitions. Word has length 103 [2022-12-13 20:47:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 44916 states and 73382 transitions. [2022-12-13 20:47:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 44916 states and 73382 transitions. [2022-12-13 20:47:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:47:05,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:05,901 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] [2022-12-13 20:47:05,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:47:05,902 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1272532809, now seen corresponding path program 1 times [2022-12-13 20:47:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037820713] [2022-12-13 20:47:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:47:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:47:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:47:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037820713] [2022-12-13 20:47:05,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037820713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:05,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:47:05,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:47:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893062228] [2022-12-13 20:47:05,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:05,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:47:05,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:47:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:47:05,994 INFO L87 Difference]: Start difference. First operand 44916 states and 73382 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:11,913 INFO L93 Difference]: Finished difference Result 101422 states and 170345 transitions. [2022-12-13 20:47:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:47:11,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:47:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:12,085 INFO L225 Difference]: With dead ends: 101422 [2022-12-13 20:47:12,085 INFO L226 Difference]: Without dead ends: 56519 [2022-12-13 20:47:12,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:47:12,159 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 630 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:12,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 523 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 20:47:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56519 states. [2022-12-13 20:47:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56519 to 44916. [2022-12-13 20:47:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44916 states, 40283 states have (on average 1.5053496512176352) internal successors, (60640), 40540 states have internal predecessors, (60640), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-12-13 20:47:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44916 states to 44916 states and 73125 transitions. [2022-12-13 20:47:15,869 INFO L78 Accepts]: Start accepts. Automaton has 44916 states and 73125 transitions. Word has length 103 [2022-12-13 20:47:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:15,869 INFO L495 AbstractCegarLoop]: Abstraction has 44916 states and 73125 transitions. [2022-12-13 20:47:15,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 44916 states and 73125 transitions. [2022-12-13 20:47:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:47:15,897 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:15,897 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] [2022-12-13 20:47:15,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:47:15,897 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2111566471, now seen corresponding path program 1 times [2022-12-13 20:47:15,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:15,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767763747] [2022-12-13 20:47:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:47:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:15,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:47:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:47:16,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:16,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767763747] [2022-12-13 20:47:16,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767763747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:16,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:47:16,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:47:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425194610] [2022-12-13 20:47:16,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:16,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:47:16,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:16,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:47:16,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:47:16,004 INFO L87 Difference]: Start difference. First operand 44916 states and 73125 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:21,794 INFO L93 Difference]: Finished difference Result 99213 states and 161111 transitions. [2022-12-13 20:47:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:47:21,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:47:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:21,935 INFO L225 Difference]: With dead ends: 99213 [2022-12-13 20:47:21,936 INFO L226 Difference]: Without dead ends: 54311 [2022-12-13 20:47:22,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:47:22,016 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 547 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:22,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 856 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:47:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54311 states. [2022-12-13 20:47:25,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54311 to 44919. [2022-12-13 20:47:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44919 states, 40286 states have (on average 1.4989574542024524) internal successors, (60387), 40543 states have internal predecessors, (60387), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-12-13 20:47:25,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44919 states to 44919 states and 72872 transitions. [2022-12-13 20:47:25,812 INFO L78 Accepts]: Start accepts. Automaton has 44919 states and 72872 transitions. Word has length 103 [2022-12-13 20:47:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:25,812 INFO L495 AbstractCegarLoop]: Abstraction has 44919 states and 72872 transitions. [2022-12-13 20:47:25,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 44919 states and 72872 transitions. [2022-12-13 20:47:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:47:25,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:25,839 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] [2022-12-13 20:47:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:47:25,839 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:25,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1618940297, now seen corresponding path program 1 times [2022-12-13 20:47:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:25,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203092215] [2022-12-13 20:47:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:25,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:47:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:47:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:47:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:25,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203092215] [2022-12-13 20:47:25,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203092215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:25,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:47:25,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:47:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118461692] [2022-12-13 20:47:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:47:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:47:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:47:25,934 INFO L87 Difference]: Start difference. First operand 44919 states and 72872 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:36,578 INFO L93 Difference]: Finished difference Result 119439 states and 189530 transitions. [2022-12-13 20:47:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:47:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:47:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:36,798 INFO L225 Difference]: With dead ends: 119439 [2022-12-13 20:47:36,798 INFO L226 Difference]: Without dead ends: 74534 [2022-12-13 20:47:36,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:47:36,887 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 547 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:36,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 853 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:47:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74534 states. [2022-12-13 20:47:41,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74534 to 45690. [2022-12-13 20:47:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45690 states, 41057 states have (on average 1.4895876464427502) internal successors, (61158), 41314 states have internal predecessors, (61158), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-12-13 20:47:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45690 states to 45690 states and 73643 transitions. [2022-12-13 20:47:41,833 INFO L78 Accepts]: Start accepts. Automaton has 45690 states and 73643 transitions. Word has length 103 [2022-12-13 20:47:41,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:41,834 INFO L495 AbstractCegarLoop]: Abstraction has 45690 states and 73643 transitions. [2022-12-13 20:47:41,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:47:41,834 INFO L276 IsEmpty]: Start isEmpty. Operand 45690 states and 73643 transitions. [2022-12-13 20:47:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:47:41,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:41,860 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] [2022-12-13 20:47:41,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:47:41,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:41,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:41,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1201543691, now seen corresponding path program 1 times [2022-12-13 20:47:41,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:41,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774813455] [2022-12-13 20:47:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:41,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:47:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:47:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:47:41,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:41,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774813455] [2022-12-13 20:47:41,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774813455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:41,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:47:41,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:47:41,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980480432] [2022-12-13 20:47:41,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:41,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:47:41,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:41,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:47:41,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:47:41,975 INFO L87 Difference]: Start difference. First operand 45690 states and 73643 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:48:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:01,526 INFO L93 Difference]: Finished difference Result 207379 states and 334751 transitions. [2022-12-13 20:48:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:48:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:48:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:48:02,021 INFO L225 Difference]: With dead ends: 207379 [2022-12-13 20:48:02,021 INFO L226 Difference]: Without dead ends: 161703 [2022-12-13 20:48:02,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:48:02,179 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1833 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:48:02,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 1092 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 20:48:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161703 states. [2022-12-13 20:48:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161703 to 131463. [2022-12-13 20:48:14,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131463 states, 117749 states have (on average 1.4906963116459588) internal successors, (175528), 118776 states have internal predecessors, (175528), 8313 states have call successors, (8313), 4632 states have call predecessors, (8313), 5400 states have return successors, (27881), 8310 states have call predecessors, (27881), 8313 states have call successors, (27881) [2022-12-13 20:48:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131463 states to 131463 states and 211722 transitions. [2022-12-13 20:48:15,221 INFO L78 Accepts]: Start accepts. Automaton has 131463 states and 211722 transitions. Word has length 103 [2022-12-13 20:48:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:48:15,221 INFO L495 AbstractCegarLoop]: Abstraction has 131463 states and 211722 transitions. [2022-12-13 20:48:15,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:48:15,221 INFO L276 IsEmpty]: Start isEmpty. Operand 131463 states and 211722 transitions. [2022-12-13 20:48:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:48:15,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:48:15,252 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] [2022-12-13 20:48:15,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:48:15,253 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:48:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2064891444, now seen corresponding path program 1 times [2022-12-13 20:48:15,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:15,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892136162] [2022-12-13 20:48:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:15,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:48:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:48:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:48:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:48:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:48:15,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:15,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892136162] [2022-12-13 20:48:15,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892136162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:15,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:15,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:48:15,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264105594] [2022-12-13 20:48:15,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:15,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:48:15,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:15,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:48:15,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:48:15,354 INFO L87 Difference]: Start difference. First operand 131463 states and 211722 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:48:43,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:43,261 INFO L93 Difference]: Finished difference Result 319454 states and 512872 transitions. [2022-12-13 20:48:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:48:43,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:48:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:48:43,795 INFO L225 Difference]: With dead ends: 319454 [2022-12-13 20:48:43,796 INFO L226 Difference]: Without dead ends: 188005 [2022-12-13 20:48:44,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:48:44,030 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 508 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:48:44,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 857 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 20:48:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188005 states. [2022-12-13 20:48:58,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188005 to 132621. [2022-12-13 20:48:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132621 states, 118907 states have (on average 1.482671331376622) internal successors, (176300), 119934 states have internal predecessors, (176300), 8313 states have call successors, (8313), 4632 states have call predecessors, (8313), 5400 states have return successors, (27881), 8310 states have call predecessors, (27881), 8313 states have call successors, (27881) [2022-12-13 20:48:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132621 states to 132621 states and 212494 transitions. [2022-12-13 20:48:58,730 INFO L78 Accepts]: Start accepts. Automaton has 132621 states and 212494 transitions. Word has length 103 [2022-12-13 20:48:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:48:58,731 INFO L495 AbstractCegarLoop]: Abstraction has 132621 states and 212494 transitions. [2022-12-13 20:48:58,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:48:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 132621 states and 212494 transitions. [2022-12-13 20:48:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:48:58,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:48:58,760 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] [2022-12-13 20:48:58,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:48:58,760 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:48:58,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:58,761 INFO L85 PathProgramCache]: Analyzing trace with hash -803974194, now seen corresponding path program 1 times [2022-12-13 20:48:58,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:58,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720633120] [2022-12-13 20:48:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:48:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:48:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:48:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:48:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:48:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:58,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720633120] [2022-12-13 20:48:58,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720633120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:58,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:58,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:48:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856612163] [2022-12-13 20:48:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:58,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:48:58,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:58,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:48:58,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:48:58,872 INFO L87 Difference]: Start difference. First operand 132621 states and 212494 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:49:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:49:43,763 INFO L93 Difference]: Finished difference Result 452751 states and 721688 transitions. [2022-12-13 20:49:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:49:43,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:49:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:49:44,776 INFO L225 Difference]: With dead ends: 452751 [2022-12-13 20:49:44,777 INFO L226 Difference]: Without dead ends: 320144 [2022-12-13 20:49:45,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:49:45,070 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 2088 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:49:45,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 1088 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 20:49:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320144 states. [2022-12-13 20:50:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320144 to 260195. [2022-12-13 20:50:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260195 states, 233031 states have (on average 1.4815024610459553) internal successors, (345236), 235342 states have internal predecessors, (345236), 16363 states have call successors, (16363), 9264 states have call predecessors, (16363), 10800 states have return successors, (56990), 15844 states have call predecessors, (56990), 16363 states have call successors, (56990) [2022-12-13 20:50:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260195 states to 260195 states and 418589 transitions. [2022-12-13 20:50:16,325 INFO L78 Accepts]: Start accepts. Automaton has 260195 states and 418589 transitions. Word has length 103 [2022-12-13 20:50:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:16,326 INFO L495 AbstractCegarLoop]: Abstraction has 260195 states and 418589 transitions. [2022-12-13 20:50:16,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:50:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 260195 states and 418589 transitions. [2022-12-13 20:50:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:50:16,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:16,358 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] [2022-12-13 20:50:16,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:50:16,358 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1912102833, now seen corresponding path program 1 times [2022-12-13 20:50:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:16,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957393477] [2022-12-13 20:50:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:50:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:50:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:50:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:50:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:50:16,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:16,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957393477] [2022-12-13 20:50:16,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957393477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:16,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:50:16,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:50:16,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933798410] [2022-12-13 20:50:16,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:16,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:50:16,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:16,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:50:16,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:50:16,449 INFO L87 Difference]: Start difference. First operand 260195 states and 418589 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:51:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:51:17,059 INFO L93 Difference]: Finished difference Result 618782 states and 996893 transitions. [2022-12-13 20:51:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:51:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:51:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:51:18,292 INFO L225 Difference]: With dead ends: 618782 [2022-12-13 20:51:18,292 INFO L226 Difference]: Without dead ends: 358601 [2022-12-13 20:51:18,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:51:18,913 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 509 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:51:18,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 857 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:51:19,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358601 states. [2022-12-13 20:51:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358601 to 262511. [2022-12-13 20:51:52,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262511 states, 235347 states have (on average 1.4734838345081942) internal successors, (346780), 237658 states have internal predecessors, (346780), 16363 states have call successors, (16363), 9264 states have call predecessors, (16363), 10800 states have return successors, (56990), 15844 states have call predecessors, (56990), 16363 states have call successors, (56990) [2022-12-13 20:51:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262511 states to 262511 states and 420133 transitions. [2022-12-13 20:51:53,140 INFO L78 Accepts]: Start accepts. Automaton has 262511 states and 420133 transitions. Word has length 103 [2022-12-13 20:51:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:51:53,140 INFO L495 AbstractCegarLoop]: Abstraction has 262511 states and 420133 transitions. [2022-12-13 20:51:53,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:51:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 262511 states and 420133 transitions. [2022-12-13 20:51:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 20:51:53,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:51:53,174 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] [2022-12-13 20:51:53,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:51:53,174 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:51:53,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:51:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 354278353, now seen corresponding path program 1 times [2022-12-13 20:51:53,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:51:53,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398773279] [2022-12-13 20:51:53,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:51:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:51:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:51:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:51:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:51:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:51:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:51:53,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:51:53,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398773279] [2022-12-13 20:51:53,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398773279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:51:53,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:51:53,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:51:53,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323434744] [2022-12-13 20:51:53,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:51:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:51:53,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:51:53,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:51:53,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:51:53,293 INFO L87 Difference]: Start difference. First operand 262511 states and 420133 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:53:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:53:39,784 INFO L93 Difference]: Finished difference Result 901701 states and 1438414 transitions. [2022-12-13 20:53:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:53:39,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2022-12-13 20:53:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:53:42,139 INFO L225 Difference]: With dead ends: 901701 [2022-12-13 20:53:42,139 INFO L226 Difference]: Without dead ends: 639204 [2022-12-13 20:53:42,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:53:42,807 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1947 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:53:42,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 1094 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 20:53:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639204 states. [2022-12-13 20:54:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639204 to 517535. [2022-12-13 20:54:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517535 states, 463083 states have (on average 1.4706909992377177) internal successors, (681052), 467962 states have internal predecessors, (681052), 32851 states have call successors, (32851), 18528 states have call predecessors, (32851), 21600 states have return successors, (119478), 31300 states have call predecessors, (119478), 32851 states have call successors, (119478) [2022-12-13 20:54:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517535 states to 517535 states and 833381 transitions. [2022-12-13 20:54:54,472 INFO L78 Accepts]: Start accepts. Automaton has 517535 states and 833381 transitions. Word has length 103 [2022-12-13 20:54:54,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:54,473 INFO L495 AbstractCegarLoop]: Abstraction has 517535 states and 833381 transitions. [2022-12-13 20:54:54,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:54:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 517535 states and 833381 transitions. [2022-12-13 20:54:54,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 20:54:54,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:54,702 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:54,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:54:54,703 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:54:54,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1658981148, now seen corresponding path program 1 times [2022-12-13 20:54:54,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:54,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958418305] [2022-12-13 20:54:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:54,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:54:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:54:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 20:54:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:54:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:54:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 20:54:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 20:54:54,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:54,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958418305] [2022-12-13 20:54:54,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958418305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:54,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:54,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:54:54,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048023967] [2022-12-13 20:54:54,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:54,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:54:54,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:54,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:54:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:54:54,801 INFO L87 Difference]: Start difference. First operand 517535 states and 833381 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 20:56:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:56:54,851 INFO L93 Difference]: Finished difference Result 1170098 states and 1908705 transitions. [2022-12-13 20:56:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:56:54,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-12-13 20:56:54,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:56:57,516 INFO L225 Difference]: With dead ends: 1170098 [2022-12-13 20:56:57,516 INFO L226 Difference]: Without dead ends: 652577 [2022-12-13 20:56:58,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:56:58,655 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 317 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:56:58,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 853 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 20:56:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652577 states. [2022-12-13 20:58:13,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652577 to 522167. [2022-12-13 20:58:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522167 states, 467715 states have (on average 1.462728370909635) internal successors, (684140), 472594 states have internal predecessors, (684140), 32851 states have call successors, (32851), 18528 states have call predecessors, (32851), 21600 states have return successors, (119478), 31300 states have call predecessors, (119478), 32851 states have call successors, (119478)