./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg --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 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:38:54,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:38:54,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:38:54,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:38:54,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:38:54,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:38:54,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:38:54,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:38:54,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:38:54,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:38:54,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:38:54,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:38:54,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:38:54,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:38:54,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:38:54,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:38:54,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:38:54,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:38:54,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:38:54,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:38:54,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:38:54,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:38:54,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:38:54,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:38:54,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:38:54,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:38:54,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:38:54,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:38:54,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:38:54,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:38:54,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:38:54,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:38:54,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:38:54,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:38:54,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:38:54,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:38:54,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:38:54,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:38:54,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:38:54,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:38:54,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:38:54,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:38:54,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:38:54,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:38:54,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:38:54,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:38:54,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:38:54,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:38:54,525 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:38:54,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:38:54,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:38:54,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:38:54,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:38:54,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:38:54,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:38:54,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:38:54,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:38:54,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:38:54,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:38:54,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:38:54,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:38:54,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:38:54,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:38:54,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:38:54,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:38:54,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:38:54,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:38:54,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:38:54,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:38:54,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:38:54,531 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:38:54,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:38:54,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:38:54,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:38:54,533 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2021-10-28 08:38:54,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:38:54,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:38:54,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:38:54,858 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:38:54,859 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:38:54,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2021-10-28 08:38:54,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/data/b38130633/7b5e9a39511944df977e899e29c79313/FLAGcec98f8c4 [2021-10-28 08:38:55,439 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:38:55,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2021-10-28 08:38:55,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/data/b38130633/7b5e9a39511944df977e899e29c79313/FLAGcec98f8c4 [2021-10-28 08:38:55,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/data/b38130633/7b5e9a39511944df977e899e29c79313 [2021-10-28 08:38:55,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:38:55,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:38:55,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:55,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:38:55,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:38:55,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:55" (1/1) ... [2021-10-28 08:38:55,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e63e41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:55, skipping insertion in model container [2021-10-28 08:38:55,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:55" (1/1) ... [2021-10-28 08:38:55,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:38:55,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:38:56,066 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2021-10-28 08:38:56,072 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2021-10-28 08:38:56,074 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2021-10-28 08:38:56,077 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2021-10-28 08:38:56,079 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2021-10-28 08:38:56,082 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2021-10-28 08:38:56,084 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2021-10-28 08:38:56,086 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2021-10-28 08:38:56,089 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2021-10-28 08:38:56,093 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2021-10-28 08:38:56,095 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2021-10-28 08:38:56,097 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2021-10-28 08:38:56,099 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2021-10-28 08:38:56,101 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2021-10-28 08:38:56,103 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2021-10-28 08:38:56,113 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2021-10-28 08:38:56,120 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2021-10-28 08:38:56,122 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2021-10-28 08:38:56,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:56,134 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:38:56,150 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2021-10-28 08:38:56,152 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2021-10-28 08:38:56,153 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2021-10-28 08:38:56,156 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2021-10-28 08:38:56,157 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2021-10-28 08:38:56,159 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2021-10-28 08:38:56,160 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2021-10-28 08:38:56,162 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2021-10-28 08:38:56,164 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2021-10-28 08:38:56,166 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2021-10-28 08:38:56,167 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2021-10-28 08:38:56,170 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2021-10-28 08:38:56,171 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2021-10-28 08:38:56,176 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2021-10-28 08:38:56,178 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2021-10-28 08:38:56,179 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2021-10-28 08:38:56,181 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2021-10-28 08:38:56,182 WARN L228 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_c1a94871-6592-44e0-aa0c-7825e6a5317b/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2021-10-28 08:38:56,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:56,207 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:38:56,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56 WrapperNode [2021-10-28 08:38:56,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:56,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:56,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:38:56,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:38:56,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:56,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:38:56,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:38:56,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:38:56,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:38:56,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:38:56,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:38:56,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:38:56,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (1/1) ... [2021-10-28 08:38:56,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:38:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:56,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:56,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:38:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:38:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:38:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:38:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:38:56,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:38:56,754 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 08:38:56,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:56 BoogieIcfgContainer [2021-10-28 08:38:56,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:38:56,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:38:56,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:38:56,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:38:56,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:38:55" (1/3) ... [2021-10-28 08:38:56,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9cfd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:38:56, skipping insertion in model container [2021-10-28 08:38:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:56" (2/3) ... [2021-10-28 08:38:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9cfd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:38:56, skipping insertion in model container [2021-10-28 08:38:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:56" (3/3) ... [2021-10-28 08:38:56,765 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2021-10-28 08:38:56,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:38:56,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-10-28 08:38:56,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:38:56,827 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:38:56,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-28 08:38:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 74 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 08:38:56,851 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:56,852 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:56,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash 123910062, now seen corresponding path program 1 times [2021-10-28 08:38:56,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:56,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592778863] [2021-10-28 08:38:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:56,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:57,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:57,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592778863] [2021-10-28 08:38:57,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592778863] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:57,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:57,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:38:57,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425374587] [2021-10-28 08:38:57,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:57,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:57,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:57,210 INFO L87 Difference]: Start difference. First operand has 75 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 74 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:57,348 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2021-10-28 08:38:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-28 08:38:57,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:57,363 INFO L225 Difference]: With dead ends: 123 [2021-10-28 08:38:57,363 INFO L226 Difference]: Without dead ends: 107 [2021-10-28 08:38:57,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-28 08:38:57,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2021-10-28 08:38:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 68 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2021-10-28 08:38:57,409 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 8 [2021-10-28 08:38:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:57,409 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2021-10-28 08:38:57,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2021-10-28 08:38:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 08:38:57,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:57,410 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:57,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:38:57,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash 120339118, now seen corresponding path program 1 times [2021-10-28 08:38:57,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:57,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359479180] [2021-10-28 08:38:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:57,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:57,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:57,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359479180] [2021-10-28 08:38:57,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359479180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:57,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:57,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:38:57,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655784213] [2021-10-28 08:38:57,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:57,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:57,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:57,474 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:57,536 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2021-10-28 08:38:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:57,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-28 08:38:57,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:57,539 INFO L225 Difference]: With dead ends: 107 [2021-10-28 08:38:57,539 INFO L226 Difference]: Without dead ends: 105 [2021-10-28 08:38:57,540 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-28 08:38:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2021-10-28 08:38:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-10-28 08:38:57,548 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 8 [2021-10-28 08:38:57,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:57,549 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-10-28 08:38:57,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-10-28 08:38:57,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:38:57,550 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:57,550 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:57,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:38:57,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:57,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2031737892, now seen corresponding path program 1 times [2021-10-28 08:38:57,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:57,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012317435] [2021-10-28 08:38:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:57,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:57,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:57,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012317435] [2021-10-28 08:38:57,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012317435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:57,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:57,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:57,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471943380] [2021-10-28 08:38:57,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:57,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:57,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:57,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:57,622 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:57,787 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2021-10-28 08:38:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:38:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:57,792 INFO L225 Difference]: With dead ends: 69 [2021-10-28 08:38:57,792 INFO L226 Difference]: Without dead ends: 67 [2021-10-28 08:38:57,793 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-28 08:38:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2021-10-28 08:38:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.38) internal successors, (69), 64 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2021-10-28 08:38:57,816 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 11 [2021-10-28 08:38:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:57,817 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2021-10-28 08:38:57,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2021-10-28 08:38:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:38:57,819 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:57,819 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:57,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:38:57,820 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:57,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:57,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1271153903, now seen corresponding path program 1 times [2021-10-28 08:38:57,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:57,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564666180] [2021-10-28 08:38:57,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:57,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:57,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:57,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564666180] [2021-10-28 08:38:57,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564666180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:57,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:57,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:57,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016192346] [2021-10-28 08:38:57,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:57,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:57,908 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,000 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2021-10-28 08:38:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:38:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,003 INFO L225 Difference]: With dead ends: 67 [2021-10-28 08:38:58,003 INFO L226 Difference]: Without dead ends: 65 [2021-10-28 08:38:58,004 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-28 08:38:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-10-28 08:38:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2021-10-28 08:38:58,023 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 11 [2021-10-28 08:38:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,023 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2021-10-28 08:38:58,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2021-10-28 08:38:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:38:58,026 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,026 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:38:58,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1440630601, now seen corresponding path program 1 times [2021-10-28 08:38:58,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518501235] [2021-10-28 08:38:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:58,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:58,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518501235] [2021-10-28 08:38:58,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518501235] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:58,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:58,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:38:58,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586300243] [2021-10-28 08:38:58,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:58,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:58,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:58,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:58,122 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,182 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2021-10-28 08:38:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:58,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 08:38:58,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,187 INFO L225 Difference]: With dead ends: 65 [2021-10-28 08:38:58,187 INFO L226 Difference]: Without dead ends: 61 [2021-10-28 08:38:58,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-28 08:38:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2021-10-28 08:38:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 58 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2021-10-28 08:38:58,211 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 12 [2021-10-28 08:38:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,212 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2021-10-28 08:38:58,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,212 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2021-10-28 08:38:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:38:58,213 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,213 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:38:58,213 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1440142029, now seen corresponding path program 1 times [2021-10-28 08:38:58,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410633308] [2021-10-28 08:38:58,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:58,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:58,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410633308] [2021-10-28 08:38:58,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410633308] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:58,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:58,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:58,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684734134] [2021-10-28 08:38:58,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:58,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:58,302 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,411 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-10-28 08:38:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:58,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 08:38:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,413 INFO L225 Difference]: With dead ends: 95 [2021-10-28 08:38:58,413 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 08:38:58,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:58,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 08:38:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 57. [2021-10-28 08:38:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-28 08:38:58,421 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 12 [2021-10-28 08:38:58,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,422 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-28 08:38:58,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,422 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-28 08:38:58,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:38:58,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,423 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:38:58,423 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1440126141, now seen corresponding path program 1 times [2021-10-28 08:38:58,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429356613] [2021-10-28 08:38:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:58,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:58,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429356613] [2021-10-28 08:38:58,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429356613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:58,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:58,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:58,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487938409] [2021-10-28 08:38:58,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:58,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:58,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:58,500 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,603 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2021-10-28 08:38:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 08:38:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,604 INFO L225 Difference]: With dead ends: 100 [2021-10-28 08:38:58,604 INFO L226 Difference]: Without dead ends: 98 [2021-10-28 08:38:58,605 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-28 08:38:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 55. [2021-10-28 08:38:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-10-28 08:38:58,609 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 12 [2021-10-28 08:38:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,609 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-10-28 08:38:58,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-10-28 08:38:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:38:58,610 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,611 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:38:58,611 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,612 INFO L85 PathProgramCache]: Analyzing trace with hash -751061257, now seen corresponding path program 1 times [2021-10-28 08:38:58,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668302660] [2021-10-28 08:38:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:58,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:58,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668302660] [2021-10-28 08:38:58,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668302660] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:58,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:58,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:38:58,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515732143] [2021-10-28 08:38:58,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:38:58,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:38:58,648 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,687 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2021-10-28 08:38:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:58,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 08:38:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,689 INFO L225 Difference]: With dead ends: 57 [2021-10-28 08:38:58,689 INFO L226 Difference]: Without dead ends: 53 [2021-10-28 08:38:58,689 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-28 08:38:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2021-10-28 08:38:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2021-10-28 08:38:58,693 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 12 [2021-10-28 08:38:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,693 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-10-28 08:38:58,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2021-10-28 08:38:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:38:58,694 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,694 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:38:58,695 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1694725733, now seen corresponding path program 1 times [2021-10-28 08:38:58,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523164169] [2021-10-28 08:38:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:58,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:58,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523164169] [2021-10-28 08:38:58,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523164169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:58,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:58,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:38:58,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630646017] [2021-10-28 08:38:58,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:58,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:58,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:58,794 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:58,951 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2021-10-28 08:38:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:38:58,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 08:38:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:58,953 INFO L225 Difference]: With dead ends: 118 [2021-10-28 08:38:58,953 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 08:38:58,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 08:38:58,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 56. [2021-10-28 08:38:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-10-28 08:38:58,961 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2021-10-28 08:38:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:58,961 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-10-28 08:38:58,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-10-28 08:38:58,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:38:58,966 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:58,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:58,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:38:58,966 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:58,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1694233189, now seen corresponding path program 1 times [2021-10-28 08:38:58,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:58,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108234832] [2021-10-28 08:38:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:58,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108234832] [2021-10-28 08:38:59,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108234832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:38:59,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863364633] [2021-10-28 08:38:59,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:59,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,121 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,222 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2021-10-28 08:38:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:38:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 08:38:59,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,234 INFO L225 Difference]: With dead ends: 116 [2021-10-28 08:38:59,235 INFO L226 Difference]: Without dead ends: 114 [2021-10-28 08:38:59,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-28 08:38:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 58. [2021-10-28 08:38:59,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.3125) internal successors, (63), 57 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2021-10-28 08:38:59,240 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 13 [2021-10-28 08:38:59,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,240 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2021-10-28 08:38:59,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,241 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2021-10-28 08:38:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:38:59,241 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,242 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:38:59,242 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:59,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1791008026, now seen corresponding path program 1 times [2021-10-28 08:38:59,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:59,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142643840] [2021-10-28 08:38:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:59,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142643840] [2021-10-28 08:38:59,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142643840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:59,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574856559] [2021-10-28 08:38:59,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:59,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:59,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:59,282 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,349 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2021-10-28 08:38:59,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:59,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 08:38:59,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,350 INFO L225 Difference]: With dead ends: 76 [2021-10-28 08:38:59,351 INFO L226 Difference]: Without dead ends: 74 [2021-10-28 08:38:59,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-28 08:38:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2021-10-28 08:38:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.297872340425532) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-10-28 08:38:59,355 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2021-10-28 08:38:59,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,355 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-10-28 08:38:59,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-10-28 08:38:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:38:59,356 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,357 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 08:38:59,357 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:59,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1789284122, now seen corresponding path program 1 times [2021-10-28 08:38:59,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:59,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681342854] [2021-10-28 08:38:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:59,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681342854] [2021-10-28 08:38:59,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681342854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:59,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760183431] [2021-10-28 08:38:59,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:59,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:59,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:59,396 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,450 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2021-10-28 08:38:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:59,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 08:38:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,451 INFO L225 Difference]: With dead ends: 57 [2021-10-28 08:38:59,451 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 08:38:59,452 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 08:38:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-28 08:38:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-10-28 08:38:59,456 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2021-10-28 08:38:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,456 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-10-28 08:38:59,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-10-28 08:38:59,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:38:59,457 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,457 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:38:59,458 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash 313330138, now seen corresponding path program 1 times [2021-10-28 08:38:59,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:59,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377382099] [2021-10-28 08:38:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:59,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377382099] [2021-10-28 08:38:59,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377382099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:38:59,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523442418] [2021-10-28 08:38:59,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:59,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,543 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,649 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2021-10-28 08:38:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:38:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 08:38:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,652 INFO L225 Difference]: With dead ends: 92 [2021-10-28 08:38:59,652 INFO L226 Difference]: Without dead ends: 90 [2021-10-28 08:38:59,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-28 08:38:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2021-10-28 08:38:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 59 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2021-10-28 08:38:59,658 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 14 [2021-10-28 08:38:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,659 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2021-10-28 08:38:59,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2021-10-28 08:38:59,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:38:59,660 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,660 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 08:38:59,661 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash 314877283, now seen corresponding path program 1 times [2021-10-28 08:38:59,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:59,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218627407] [2021-10-28 08:38:59,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:59,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218627407] [2021-10-28 08:38:59,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218627407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:59,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035323557] [2021-10-28 08:38:59,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:38:59,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:38:59,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:38:59,716 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,787 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2021-10-28 08:38:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:59,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 08:38:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,788 INFO L225 Difference]: With dead ends: 80 [2021-10-28 08:38:59,788 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 08:38:59,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 08:38:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2021-10-28 08:38:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2021-10-28 08:38:59,793 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 14 [2021-10-28 08:38:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,794 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2021-10-28 08:38:59,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2021-10-28 08:38:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:38:59,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 08:38:59,795 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:38:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash 366771218, now seen corresponding path program 1 times [2021-10-28 08:38:59,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:59,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809014058] [2021-10-28 08:38:59,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:59,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:59,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:59,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809014058] [2021-10-28 08:38:59,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809014058] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:59,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:59,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:38:59,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316935093] [2021-10-28 08:38:59,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:38:59,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:59,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:59,901 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:59,990 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2021-10-28 08:38:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:38:59,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 08:38:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:38:59,991 INFO L225 Difference]: With dead ends: 70 [2021-10-28 08:38:59,992 INFO L226 Difference]: Without dead ends: 66 [2021-10-28 08:38:59,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:38:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-28 08:38:59,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-10-28 08:38:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2021-10-28 08:38:59,998 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2021-10-28 08:38:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:38:59,998 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2021-10-28 08:38:59,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2021-10-28 08:38:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:38:59,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:38:59,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:59,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 08:39:00,000 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1171265312, now seen corresponding path program 1 times [2021-10-28 08:39:00,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:00,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871454860] [2021-10-28 08:39:00,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:00,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:00,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:00,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871454860] [2021-10-28 08:39:00,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871454860] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:00,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:00,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:39:00,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714404788] [2021-10-28 08:39:00,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:39:00,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:00,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:39:00,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:39:00,093 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:00,194 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-10-28 08:39:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:39:00,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 08:39:00,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:00,196 INFO L225 Difference]: With dead ends: 87 [2021-10-28 08:39:00,196 INFO L226 Difference]: Without dead ends: 85 [2021-10-28 08:39:00,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:39:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-28 08:39:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2021-10-28 08:39:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2021-10-28 08:39:00,201 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 15 [2021-10-28 08:39:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:00,201 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2021-10-28 08:39:00,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2021-10-28 08:39:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:39:00,202 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:00,202 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:00,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 08:39:00,203 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:00,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash 462679229, now seen corresponding path program 1 times [2021-10-28 08:39:00,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:00,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704011300] [2021-10-28 08:39:00,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:00,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:00,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:00,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704011300] [2021-10-28 08:39:00,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704011300] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:00,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:00,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:39:00,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794362654] [2021-10-28 08:39:00,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:39:00,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:00,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:39:00,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:00,234 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:00,260 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2021-10-28 08:39:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:39:00,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 08:39:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:00,262 INFO L225 Difference]: With dead ends: 62 [2021-10-28 08:39:00,262 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 08:39:00,262 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:39:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 08:39:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-28 08:39:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 59 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2021-10-28 08:39:00,267 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 16 [2021-10-28 08:39:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:00,267 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2021-10-28 08:39:00,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2021-10-28 08:39:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:39:00,268 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:00,268 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:00,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 08:39:00,269 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:00,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:00,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1458158324, now seen corresponding path program 1 times [2021-10-28 08:39:00,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:00,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513872768] [2021-10-28 08:39:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:00,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:00,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:00,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513872768] [2021-10-28 08:39:00,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513872768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:00,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:00,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:39:00,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417554538] [2021-10-28 08:39:00,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:39:00,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:00,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:39:00,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:00,299 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:00,335 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2021-10-28 08:39:00,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:39:00,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-28 08:39:00,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:00,336 INFO L225 Difference]: With dead ends: 60 [2021-10-28 08:39:00,336 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 08:39:00,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:39:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 08:39:00,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-28 08:39:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-10-28 08:39:00,341 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 17 [2021-10-28 08:39:00,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:00,342 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-10-28 08:39:00,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2021-10-28 08:39:00,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:39:00,342 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:00,342 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:00,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 08:39:00,343 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:00,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:00,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1747922500, now seen corresponding path program 1 times [2021-10-28 08:39:00,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:00,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108131914] [2021-10-28 08:39:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:00,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:00,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:00,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108131914] [2021-10-28 08:39:00,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108131914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:00,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052177495] [2021-10-28 08:39:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:00,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:00,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:00,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:00,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:39:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:00,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:39:00,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:00,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052177495] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:00,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:39:00,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2021-10-28 08:39:00,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61796745] [2021-10-28 08:39:00,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:39:00,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:39:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:39:00,987 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:01,231 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2021-10-28 08:39:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:39:01,232 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 08:39:01,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:01,233 INFO L225 Difference]: With dead ends: 121 [2021-10-28 08:39:01,233 INFO L226 Difference]: Without dead ends: 119 [2021-10-28 08:39:01,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:39:01,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-28 08:39:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 52. [2021-10-28 08:39:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-10-28 08:39:01,239 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 18 [2021-10-28 08:39:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:01,239 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-10-28 08:39:01,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2021-10-28 08:39:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:39:01,242 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:01,243 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:01,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:01,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:01,460 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:01,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:01,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1748415044, now seen corresponding path program 1 times [2021-10-28 08:39:01,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:01,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590555514] [2021-10-28 08:39:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:01,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:01,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:01,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590555514] [2021-10-28 08:39:01,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590555514] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:01,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855843757] [2021-10-28 08:39:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:01,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:01,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:01,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:39:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:01,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:39:01,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:01,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855843757] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:01,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:39:01,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2021-10-28 08:39:01,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315498376] [2021-10-28 08:39:01,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:39:01,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:39:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:39:01,985 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:02,285 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2021-10-28 08:39:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:39:02,286 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 08:39:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:02,286 INFO L225 Difference]: With dead ends: 100 [2021-10-28 08:39:02,287 INFO L226 Difference]: Without dead ends: 98 [2021-10-28 08:39:02,287 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:39:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-28 08:39:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 45. [2021-10-28 08:39:02,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2021-10-28 08:39:02,293 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2021-10-28 08:39:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:02,294 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2021-10-28 08:39:02,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-10-28 08:39:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:39:02,294 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:02,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:02,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:02,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:02,495 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:02,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2026613132, now seen corresponding path program 1 times [2021-10-28 08:39:02,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:02,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684478750] [2021-10-28 08:39:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:02,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:02,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:02,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684478750] [2021-10-28 08:39:02,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684478750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:02,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:02,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:39:02,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807529756] [2021-10-28 08:39:02,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:39:02,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:39:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:39:02,563 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:02,674 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2021-10-28 08:39:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:39:02,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 08:39:02,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:02,676 INFO L225 Difference]: With dead ends: 60 [2021-10-28 08:39:02,676 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 08:39:02,676 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:39:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 08:39:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2021-10-28 08:39:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 39 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2021-10-28 08:39:02,680 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 18 [2021-10-28 08:39:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:02,681 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2021-10-28 08:39:02,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2021-10-28 08:39:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 08:39:02,682 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:02,682 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:02,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 08:39:02,682 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -684716563, now seen corresponding path program 1 times [2021-10-28 08:39:02,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:02,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455266193] [2021-10-28 08:39:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:02,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:02,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:02,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455266193] [2021-10-28 08:39:02,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455266193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:02,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:02,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:39:02,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515856498] [2021-10-28 08:39:02,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:39:02,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:39:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:39:02,746 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:02,806 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-10-28 08:39:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:39:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-28 08:39:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:02,809 INFO L225 Difference]: With dead ends: 52 [2021-10-28 08:39:02,809 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 08:39:02,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:39:02,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 08:39:02,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-10-28 08:39:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-10-28 08:39:02,814 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 19 [2021-10-28 08:39:02,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:02,815 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-10-28 08:39:02,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-10-28 08:39:02,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 08:39:02,816 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:02,816 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:02,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 08:39:02,816 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-28 08:39:02,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:02,817 INFO L85 PathProgramCache]: Analyzing trace with hash -631275483, now seen corresponding path program 1 times [2021-10-28 08:39:02,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:02,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817061358] [2021-10-28 08:39:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:02,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:02,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:02,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817061358] [2021-10-28 08:39:02,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817061358] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:02,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:02,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:39:02,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109252217] [2021-10-28 08:39:02,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:39:02,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:02,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:39:02,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:39:02,893 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:02,949 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-10-28 08:39:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:39:02,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-28 08:39:02,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:02,949 INFO L225 Difference]: With dead ends: 35 [2021-10-28 08:39:02,949 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:39:02,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:39:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:39:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:39:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:39:02,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-28 08:39:02,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:02,951 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:39:02,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:39:02,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:39:02,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,957 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:02,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-28 08:39:02,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:39:02,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L126(line 126) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L366(line 366) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2021-10-28 08:39:03,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 297) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 126) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point L309(line 309) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L860 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: true [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 345) no Hoare annotation was computed. [2021-10-28 08:39:03,809 INFO L857 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2021-10-28 08:39:03,810 INFO L853 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~main__t~0 0))) (let ((.cse0 (let ((.cse2 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~13 0)))) (or (and (<= 1 ULTIMATE.start_main_~main__t~0) .cse2) (and .cse2 .cse1))))) (or (and (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (not (= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) .cse0 .cse1) (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~19) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~18 0)) .cse0)))) [2021-10-28 08:39:03,810 INFO L853 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse4 (<= 0 ULTIMATE.start_main_~main__tagbuf_len~0))) (or (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (let ((.cse3 (<= ULTIMATE.start_main_~main__t~0 1))) (let ((.cse0 (let ((.cse5 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~16 0))) (.cse6 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~13 0))) (.cse7 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~17 0)))) (or (and .cse5 (not (= ULTIMATE.start_main_~main__tagbuf_len~0 0)) .cse3 .cse6 .cse7) (and .cse5 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~19 0)) .cse6 .cse7)))) (.cse1 (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~17)) (.cse2 (<= 1 ULTIMATE.start_main_~main__t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~19)))))) (and (not (= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) .cse4 (= ULTIMATE.start_main_~main__t~0 0)))) [2021-10-28 08:39:03,810 INFO L857 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2021-10-28 08:39:03,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 278) no Hoare annotation was computed. [2021-10-28 08:39:03,810 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2021-10-28 08:39:03,810 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2021-10-28 08:39:03,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 333) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L853 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2021-10-28 08:39:03,811 INFO L857 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L345(line 345) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2021-10-28 08:39:03,812 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2021-10-28 08:39:03,813 INFO L860 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: true [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2021-10-28 08:39:03,814 INFO L853 garLoopResultBuilder]: At program point L249(lines 101 251) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2021-10-28 08:39:03,815 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2021-10-28 08:39:03,815 INFO L857 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2021-10-28 08:39:03,815 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2021-10-28 08:39:03,815 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-28 08:39:03,816 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 309) no Hoare annotation was computed. [2021-10-28 08:39:03,817 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2021-10-28 08:39:03,817 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2021-10-28 08:39:03,820 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:03,822 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:39:03,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:39:03 BoogieIcfgContainer [2021-10-28 08:39:03,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:39:03,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:39:03,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:39:03,854 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:39:03,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:56" (3/4) ... [2021-10-28 08:39:03,865 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:39:03,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 08:39:03,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:39:03,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:39:03,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:39:03,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:39:03,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:39:03,955 INFO L168 Benchmark]: Toolchain (without parser) took 8190.87 ms. Allocated memory was 132.1 MB in the beginning and 192.9 MB in the end (delta: 60.8 MB). Free memory was 97.3 MB in the beginning and 109.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,956 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 132.1 MB. Free memory was 106.0 MB in the beginning and 106.0 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:03,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.33 ms. Allocated memory is still 132.1 MB. Free memory was 97.0 MB in the beginning and 101.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 132.1 MB. Free memory was 101.3 MB in the beginning and 99.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:03,957 INFO L168 Benchmark]: Boogie Preprocessor took 63.87 ms. Allocated memory is still 132.1 MB. Free memory was 99.2 MB in the beginning and 97.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,957 INFO L168 Benchmark]: RCFGBuilder took 432.20 ms. Allocated memory is still 132.1 MB. Free memory was 97.8 MB in the beginning and 83.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,958 INFO L168 Benchmark]: TraceAbstraction took 7095.24 ms. Allocated memory was 132.1 MB in the beginning and 192.9 MB in the end (delta: 60.8 MB). Free memory was 82.5 MB in the beginning and 115.5 MB in the end (delta: -33.1 MB). Peak memory consumption was 66.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,958 INFO L168 Benchmark]: Witness Printer took 100.21 ms. Allocated memory is still 192.9 MB. Free memory was 115.5 MB in the beginning and 109.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:03,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 132.1 MB. Free memory was 106.0 MB in the beginning and 106.0 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.33 ms. Allocated memory is still 132.1 MB. Free memory was 97.0 MB in the beginning and 101.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 132.1 MB. Free memory was 101.3 MB in the beginning and 99.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.87 ms. Allocated memory is still 132.1 MB. Free memory was 99.2 MB in the beginning and 97.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 432.20 ms. Allocated memory is still 132.1 MB. Free memory was 97.8 MB in the beginning and 83.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7095.24 ms. Allocated memory was 132.1 MB in the beginning and 192.9 MB in the end (delta: 60.8 MB). Free memory was 82.5 MB in the beginning and 115.5 MB in the end (delta: -33.1 MB). Peak memory consumption was 66.5 MB. Max. memory is 16.1 GB. * Witness Printer took 100.21 ms. Allocated memory is still 192.9 MB. Free memory was 115.5 MB in the beginning and 109.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 52]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 114]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 126]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 154]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 188]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 224]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 236]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 278]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 297]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 309]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 345]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 366]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1028 SDtfs, 1618 SDslu, 1765 SDs, 0 SdLazy, 2051 SolverSat, 197 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 531 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 192 HoareAnnotationTreeSize, 6 FomulaSimplifications, 10686158 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 6 FomulaSimplificationsInter, 2506650 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 1519 SizeOfPredicates, 6 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 4/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (main__t < main__tagbuf_len && ((((((((((!(__VERIFIER_assert__cond == 0) && !(main__tagbuf_len == 0)) && main__t <= 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) || (((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) && 1 <= __VERIFIER_assert__cond) && 1 <= main__t) && main__t <= 1) && 0 <= main__tagbuf_len) || (((((((((!(__VERIFIER_assert__cond == 0) && !(main__tagbuf_len == 0)) && main__t <= 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) || (((!(__VERIFIER_assert__cond == 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) && 1 <= __VERIFIER_assert__cond) && 1 <= main__t) && 0 <= main__tagbuf_len) && 1 <= __VERIFIER_assert__cond))) || ((!(main__t == main__tagbuf_len) && 0 <= main__tagbuf_len) && main__t == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((main__t <= main__tagbuf_len && !(main__t == main__tagbuf_len)) && ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) || (!(__VERIFIER_assert__cond == 0) && main__t == 0))) && main__t == 0) || (((main__t < main__tagbuf_len && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) || (!(__VERIFIER_assert__cond == 0) && main__t == 0))) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:39:04,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a94871-6592-44e0-aa0c-7825e6a5317b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...