./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN --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 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 --- 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-6b4ec56 [2022-11-20 12:15:02,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:15:02,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:15:02,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:15:02,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:15:02,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:15:02,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:15:02,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:15:02,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:15:02,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:15:02,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:15:02,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:15:02,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:15:02,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:15:02,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:15:02,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:15:02,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:15:02,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:15:02,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:15:02,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:15:02,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:15:02,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:15:02,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:15:02,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:15:02,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:15:02,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:15:02,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:15:02,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:15:02,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:15:02,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:15:02,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:15:02,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:15:02,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:15:02,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:15:02,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:15:02,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:15:02,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:15:02,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:15:02,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:15:02,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:15:02,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:15:02,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:15:02,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:15:02,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:15:02,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:15:02,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:15:02,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:15:02,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:15:02,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:15:02,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:15:02,444 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:15:02,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:15:02,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:15:02,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:15:02,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:15:02,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:15:02,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:15:02,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:15:02,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:15:02,446 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:15:02,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:15:02,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:15:02,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:15:02,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:15:02,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:15:02,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:15:02,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:02,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:15:02,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:15:02,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:15:02,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:15:02,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:15:02,452 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:15:02,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:15:02,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:15:02,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 [2022-11-20 12:15:02,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:15:02,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:15:02,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:15:02,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:15:02,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:15:02,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-11-20 12:15:06,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:15:07,206 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:15:07,207 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-11-20 12:15:07,262 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/data/1bd47e543/513e6dffee074e47ba73f815df4a5886/FLAG4571199cd [2022-11-20 12:15:07,282 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/data/1bd47e543/513e6dffee074e47ba73f815df4a5886 [2022-11-20 12:15:07,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:15:07,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:15:07,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:07,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:15:07,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:15:07,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:07" (1/1) ... [2022-11-20 12:15:07,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c4edab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:07, skipping insertion in model container [2022-11-20 12:15:07,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:07" (1/1) ... [2022-11-20 12:15:07,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:15:07,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:10,519 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_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2022-11-20 12:15:10,553 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_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2022-11-20 12:15:10,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:10,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:15:12,319 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_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2022-11-20 12:15:12,324 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_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2022-11-20 12:15:12,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:12,497 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:15:12,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12 WrapperNode [2022-11-20 12:15:12,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:12,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:12,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:15:12,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:15:12,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:12,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,230 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2022-11-20 12:15:13,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:13,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:15:13,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:15:13,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:15:13,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:15:13,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:15:13,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:15:13,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:15:13,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (1/1) ... [2022-11-20 12:15:13,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:13,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:15:13,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08cfadf8-b9bb-45e5-9ec1-307db3ea9679/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:15:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:15:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-20 12:15:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-20 12:15:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-20 12:15:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-20 12:15:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-20 12:15:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-20 12:15:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-20 12:15:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-20 12:15:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-20 12:15:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-20 12:15:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-20 12:15:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-20 12:15:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-20 12:15:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-20 12:15:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:15:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:15:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:15:14,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:15:14,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:15:26,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:15:26,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:15:26,149 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-20 12:15:26,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:26 BoogieIcfgContainer [2022-11-20 12:15:26,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:15:26,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:15:26,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:15:26,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:15:26,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:15:07" (1/3) ... [2022-11-20 12:15:26,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe2367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:26, skipping insertion in model container [2022-11-20 12:15:26,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:12" (2/3) ... [2022-11-20 12:15:26,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe2367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:26, skipping insertion in model container [2022-11-20 12:15:26,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:26" (3/3) ... [2022-11-20 12:15:26,168 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-1.c [2022-11-20 12:15:26,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:15:26,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 12:15:26,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:15:26,329 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;@5a8ef017, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:15:26,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 12:15:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-20 12:15:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:26,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:26,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:26,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2022-11-20 12:15:26,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:26,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284570879] [2022-11-20 12:15:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:26,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:26,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:27,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:27,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:27,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284570879] [2022-11-20 12:15:27,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284570879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:27,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:27,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:15:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77633704] [2022-11-20 12:15:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:27,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:27,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:27,354 INFO L87 Difference]: Start difference. First operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:31,334 INFO L93 Difference]: Finished difference Result 5340 states and 9793 transitions. [2022-11-20 12:15:31,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:31,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:15:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:31,365 INFO L225 Difference]: With dead ends: 5340 [2022-11-20 12:15:31,366 INFO L226 Difference]: Without dead ends: 2683 [2022-11-20 12:15:31,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:15:31,379 INFO L413 NwaCegarLoop]: 4403 mSDtfsCounter, 1125 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 16912 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:31,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 16912 Invalid, 1176 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 12:15:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-20 12:15:31,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-20 12:15:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.824709185720016) internal successors, (4549), 2496 states have internal predecessors, (4549), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-20 12:15:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4605 transitions. [2022-11-20 12:15:31,567 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4605 transitions. Word has length 190 [2022-11-20 12:15:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:31,568 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4605 transitions. [2022-11-20 12:15:31,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4605 transitions. [2022-11-20 12:15:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:31,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:31,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:31,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:15:31,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 431579580, now seen corresponding path program 1 times [2022-11-20 12:15:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:31,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664582046] [2022-11-20 12:15:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:31,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:31,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664582046] [2022-11-20 12:15:31,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664582046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:31,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:31,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:15:31,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004676722] [2022-11-20 12:15:31,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:31,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:31,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:31,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:31,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:31,923 INFO L87 Difference]: Start difference. First operand 2530 states and 4605 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:35,523 INFO L93 Difference]: Finished difference Result 3075 states and 5487 transitions. [2022-11-20 12:15:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:35,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:15:35,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:35,541 INFO L225 Difference]: With dead ends: 3075 [2022-11-20 12:15:35,541 INFO L226 Difference]: Without dead ends: 2683 [2022-11-20 12:15:35,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:15:35,546 INFO L413 NwaCegarLoop]: 4333 mSDtfsCounter, 1111 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 16639 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:35,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 16639 Invalid, 1175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 12:15:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-20 12:15:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-20 12:15:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.8243080625752106) internal successors, (4548), 2496 states have internal predecessors, (4548), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-20 12:15:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4604 transitions. [2022-11-20 12:15:35,719 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4604 transitions. Word has length 190 [2022-11-20 12:15:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:35,720 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4604 transitions. [2022-11-20 12:15:35,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4604 transitions. [2022-11-20 12:15:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:35,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:35,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:35,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:15:35,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash -217013190, now seen corresponding path program 1 times [2022-11-20 12:15:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:35,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381108857] [2022-11-20 12:15:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:35,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:36,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:36,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381108857] [2022-11-20 12:15:36,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381108857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:36,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148379926] [2022-11-20 12:15:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:36,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:36,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:36,199 INFO L87 Difference]: Start difference. First operand 2530 states and 4604 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:42,639 INFO L93 Difference]: Finished difference Result 3632 states and 6395 transitions. [2022-11-20 12:15:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:15:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:15:42,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:42,657 INFO L225 Difference]: With dead ends: 3632 [2022-11-20 12:15:42,657 INFO L226 Difference]: Without dead ends: 3244 [2022-11-20 12:15:42,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:15:42,661 INFO L413 NwaCegarLoop]: 4338 mSDtfsCounter, 5648 mSDsluCounter, 12917 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 17255 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:42,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 17255 Invalid, 2673 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [120 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 12:15:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-11-20 12:15:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2937. [2022-11-20 12:15:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2871 states have (on average 1.79554162312783) internal successors, (5155), 2875 states have internal predecessors, (5155), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-11-20 12:15:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5258 transitions. [2022-11-20 12:15:42,863 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5258 transitions. Word has length 190 [2022-11-20 12:15:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:42,864 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5258 transitions. [2022-11-20 12:15:42,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5258 transitions. [2022-11-20 12:15:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:42,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:42,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:42,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:15:42,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:42,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2064039626, now seen corresponding path program 1 times [2022-11-20 12:15:42,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:42,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252545855] [2022-11-20 12:15:42,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:42,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:43,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:43,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252545855] [2022-11-20 12:15:43,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252545855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:43,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:43,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:15:43,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906994894] [2022-11-20 12:15:43,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:43,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:15:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:15:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:43,330 INFO L87 Difference]: Start difference. First operand 2937 states and 5258 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:50,668 INFO L93 Difference]: Finished difference Result 4620 states and 7998 transitions. [2022-11-20 12:15:50,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:15:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:15:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:50,689 INFO L225 Difference]: With dead ends: 4620 [2022-11-20 12:15:50,689 INFO L226 Difference]: Without dead ends: 3825 [2022-11-20 12:15:50,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:15:50,695 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5693 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5713 SdHoareTripleChecker+Valid, 22478 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:50,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5713 Valid, 22478 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-20 12:15:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-11-20 12:15:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3315. [2022-11-20 12:15:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3220 states have (on average 1.7714285714285714) internal successors, (5704), 3225 states have internal predecessors, (5704), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-11-20 12:15:51,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5853 transitions. [2022-11-20 12:15:51,107 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5853 transitions. Word has length 190 [2022-11-20 12:15:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:51,115 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5853 transitions. [2022-11-20 12:15:51,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5853 transitions. [2022-11-20 12:15:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:51,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:51,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:51,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:15:51,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:51,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash 307677240, now seen corresponding path program 1 times [2022-11-20 12:15:51,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:51,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129708265] [2022-11-20 12:15:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:51,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:51,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:51,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129708265] [2022-11-20 12:15:51,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129708265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:51,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:51,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:15:51,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211295931] [2022-11-20 12:15:51,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:51,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:15:51,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:51,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:15:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:51,602 INFO L87 Difference]: Start difference. First operand 3315 states and 5853 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:58,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:58,683 INFO L93 Difference]: Finished difference Result 6076 states and 10341 transitions. [2022-11-20 12:15:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:15:58,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:15:58,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:58,718 INFO L225 Difference]: With dead ends: 6076 [2022-11-20 12:15:58,718 INFO L226 Difference]: Without dead ends: 4903 [2022-11-20 12:15:58,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:15:58,725 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5687 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3839 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5707 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:58,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5707 Valid, 22476 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3839 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-20 12:15:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2022-11-20 12:15:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4075. [2022-11-20 12:15:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3922 states have (on average 1.7361040285568587) internal successors, (6809), 3929 states have internal predecessors, (6809), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-11-20 12:15:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7054 transitions. [2022-11-20 12:15:59,323 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7054 transitions. Word has length 190 [2022-11-20 12:15:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:59,324 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7054 transitions. [2022-11-20 12:15:59,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:15:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7054 transitions. [2022-11-20 12:15:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:15:59,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:59,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:59,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:15:59,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 806234042, now seen corresponding path program 1 times [2022-11-20 12:15:59,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:59,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707409601] [2022-11-20 12:15:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:59,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:15:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:15:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:15:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:15:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:15:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:59,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:59,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707409601] [2022-11-20 12:15:59,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707409601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:59,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:59,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:15:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650455629] [2022-11-20 12:15:59,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:59,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:15:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:15:59,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:59,852 INFO L87 Difference]: Start difference. First operand 4075 states and 7054 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:07,202 INFO L93 Difference]: Finished difference Result 8882 states and 14826 transitions. [2022-11-20 12:16:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:16:07,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:16:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:07,240 INFO L225 Difference]: With dead ends: 8882 [2022-11-20 12:16:07,240 INFO L226 Difference]: Without dead ends: 6949 [2022-11-20 12:16:07,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:16:07,251 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5686 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:07,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 22476 Invalid, 3897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-20 12:16:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-11-20 12:16:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 5596. [2022-11-20 12:16:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5327 states have (on average 1.6930730242162568) internal successors, (9019), 5338 states have internal predecessors, (9019), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-11-20 12:16:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9462 transitions. [2022-11-20 12:16:07,962 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9462 transitions. Word has length 190 [2022-11-20 12:16:07,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:07,963 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9462 transitions. [2022-11-20 12:16:07,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9462 transitions. [2022-11-20 12:16:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:16:07,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:07,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:07,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:16:07,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:07,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:07,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1376505848, now seen corresponding path program 1 times [2022-11-20 12:16:07,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:07,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516717222] [2022-11-20 12:16:07,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:07,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:16:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:16:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:16:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:16:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:16:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:08,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:08,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516717222] [2022-11-20 12:16:08,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516717222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:08,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:08,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:08,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266263974] [2022-11-20 12:16:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:08,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:08,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:08,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:08,418 INFO L87 Difference]: Start difference. First operand 5596 states and 9462 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:16,185 INFO L93 Difference]: Finished difference Result 14493 states and 23812 transitions. [2022-11-20 12:16:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:16:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:16:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:16,234 INFO L225 Difference]: With dead ends: 14493 [2022-11-20 12:16:16,235 INFO L226 Difference]: Without dead ends: 11039 [2022-11-20 12:16:16,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:16:16,251 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5685 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5705 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:16,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5705 Valid, 22476 Invalid, 3884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-20 12:16:16,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-11-20 12:16:17,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 8645. [2022-11-20 12:16:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8645 states, 8144 states have (on average 1.6513998035363457) internal successors, (13449), 8163 states have internal predecessors, (13449), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-11-20 12:16:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8645 states to 8645 states and 14306 transitions. [2022-11-20 12:16:17,566 INFO L78 Accepts]: Start accepts. Automaton has 8645 states and 14306 transitions. Word has length 190 [2022-11-20 12:16:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:17,566 INFO L495 AbstractCegarLoop]: Abstraction has 8645 states and 14306 transitions. [2022-11-20 12:16:17,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 8645 states and 14306 transitions. [2022-11-20 12:16:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:16:17,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:17,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:17,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:16:17,575 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:17,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:17,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1514592262, now seen corresponding path program 1 times [2022-11-20 12:16:17,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:17,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814883844] [2022-11-20 12:16:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:17,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:16:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:16:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:16:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:16:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:16:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:17,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:17,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814883844] [2022-11-20 12:16:17,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814883844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:17,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:17,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798908363] [2022-11-20 12:16:17,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:17,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:17,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:17,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:17,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:17,933 INFO L87 Difference]: Start difference. First operand 8645 states and 14306 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:26,535 INFO L93 Difference]: Finished difference Result 25716 states and 41846 transitions. [2022-11-20 12:16:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:16:26,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:16:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:26,619 INFO L225 Difference]: With dead ends: 25716 [2022-11-20 12:16:26,619 INFO L226 Difference]: Without dead ends: 19213 [2022-11-20 12:16:26,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:16:26,651 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 5798 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 21535 SdHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:26,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 21535 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-20 12:16:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19213 states. [2022-11-20 12:16:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19213 to 14758. [2022-11-20 12:16:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6190096425723193) internal successors, (22331), 13828 states have internal predecessors, (22331), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-20 12:16:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24070 transitions. [2022-11-20 12:16:28,529 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24070 transitions. Word has length 190 [2022-11-20 12:16:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:28,529 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24070 transitions. [2022-11-20 12:16:28,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24070 transitions. [2022-11-20 12:16:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:16:28,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:28,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:28,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:16:28,542 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1994377144, now seen corresponding path program 1 times [2022-11-20 12:16:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:28,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724678457] [2022-11-20 12:16:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:28,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:16:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:16:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:16:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:16:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:16:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:28,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:28,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724678457] [2022-11-20 12:16:28,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724678457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:28,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:28,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255323154] [2022-11-20 12:16:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:28,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:28,927 INFO L87 Difference]: Start difference. First operand 14758 states and 24070 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:35,355 INFO L93 Difference]: Finished difference Result 32108 states and 52373 transitions. [2022-11-20 12:16:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:16:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:16:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:35,435 INFO L225 Difference]: With dead ends: 32108 [2022-11-20 12:16:35,435 INFO L226 Difference]: Without dead ends: 19492 [2022-11-20 12:16:35,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:16:35,483 INFO L413 NwaCegarLoop]: 4286 mSDtfsCounter, 5194 mSDsluCounter, 16860 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5215 SdHoareTripleChecker+Valid, 21146 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:35,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5215 Valid, 21146 Invalid, 2023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:16:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2022-11-20 12:16:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 14758. [2022-11-20 12:16:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6166171246284347) internal successors, (22298), 13828 states have internal predecessors, (22298), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-20 12:16:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24037 transitions. [2022-11-20 12:16:38,059 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24037 transitions. Word has length 190 [2022-11-20 12:16:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:38,060 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24037 transitions. [2022-11-20 12:16:38,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24037 transitions. [2022-11-20 12:16:38,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:16:38,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:38,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:38,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:16:38,073 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:38,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1633208262, now seen corresponding path program 1 times [2022-11-20 12:16:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:38,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242414570] [2022-11-20 12:16:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:38,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:16:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:16:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:16:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:16:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:16:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:38,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:38,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:38,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242414570] [2022-11-20 12:16:38,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242414570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:38,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:38,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:38,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108498204] [2022-11-20 12:16:38,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:38,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:38,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:38,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:38,443 INFO L87 Difference]: Start difference. First operand 14758 states and 24037 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:50,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:50,552 INFO L93 Difference]: Finished difference Result 48129 states and 77876 transitions. [2022-11-20 12:16:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:16:50,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:16:50,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:50,701 INFO L225 Difference]: With dead ends: 48129 [2022-11-20 12:16:50,701 INFO L226 Difference]: Without dead ends: 35513 [2022-11-20 12:16:50,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:16:50,746 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5676 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:50,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 22476 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:16:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35513 states. [2022-11-20 12:16:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35513 to 27048. [2022-11-20 12:16:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27048 states, 25155 states have (on average 1.5945140131186644) internal successors, (40110), 25222 states have internal predecessors, (40110), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-11-20 12:16:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27048 states to 27048 states and 43775 transitions. [2022-11-20 12:16:55,418 INFO L78 Accepts]: Start accepts. Automaton has 27048 states and 43775 transitions. Word has length 190 [2022-11-20 12:16:55,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:55,419 INFO L495 AbstractCegarLoop]: Abstraction has 27048 states and 43775 transitions. [2022-11-20 12:16:55,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:16:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 27048 states and 43775 transitions. [2022-11-20 12:16:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:16:55,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:55,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:55,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:16:55,440 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash 466530168, now seen corresponding path program 1 times [2022-11-20 12:16:55,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:55,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267139744] [2022-11-20 12:16:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:55,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:16:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:16:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:16:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:16:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:16:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:55,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:55,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267139744] [2022-11-20 12:16:55,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267139744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:55,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:55,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:55,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350624970] [2022-11-20 12:16:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:55,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:55,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:55,832 INFO L87 Difference]: Start difference. First operand 27048 states and 43775 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:17:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:15,076 INFO L93 Difference]: Finished difference Result 93025 states and 150812 transitions. [2022-11-20 12:17:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:17:15,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-20 12:17:15,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:15,382 INFO L225 Difference]: With dead ends: 93025 [2022-11-20 12:17:15,383 INFO L226 Difference]: Without dead ends: 68119 [2022-11-20 12:17:15,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:17:15,493 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5681 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5701 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:15,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5701 Valid, 22476 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:17:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68119 states. [2022-11-20 12:17:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68119 to 51689. [2022-11-20 12:17:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5816437213183145) internal successors, (75824), 48071 states have internal predecessors, (75824), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-11-20 12:17:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83827 transitions. [2022-11-20 12:17:24,993 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83827 transitions. Word has length 190 [2022-11-20 12:17:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:24,994 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83827 transitions. [2022-11-20 12:17:24,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:17:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83827 transitions. [2022-11-20 12:17:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 12:17:25,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:25,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:25,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:17:25,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 811358330, now seen corresponding path program 1 times [2022-11-20 12:17:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683518141] [2022-11-20 12:17:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:17:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:17:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:17:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 12:17:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 12:17:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:25,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:25,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683518141] [2022-11-20 12:17:25,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683518141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797374786] [2022-11-20 12:17:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:25,353 INFO L87 Difference]: Start difference. First operand 51689 states and 83827 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)