./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/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_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a --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 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:45:31,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:45:31,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:45:31,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:45:31,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:45:31,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:45:31,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:45:31,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:45:31,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:45:31,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:45:31,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:45:31,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:45:31,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:45:31,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:45:31,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:45:31,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:45:31,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:45:31,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:45:31,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:45:31,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:45:31,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:45:31,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:45:31,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:45:31,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:45:31,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:45:31,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:45:31,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:45:31,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:45:31,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:45:31,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:45:31,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:45:31,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:45:31,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:45:31,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:45:31,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:45:31,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:45:31,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:45:31,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:45:31,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:45:31,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:45:31,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:45:31,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:45:31,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:45:31,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:45:31,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:45:31,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:45:31,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:45:31,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:45:31,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:45:31,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:45:31,346 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:45:31,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:45:31,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:45:31,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:45:31,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:45:31,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:45:31,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:45:31,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:45:31,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:45:31,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:45:31,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:45:31,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:45:31,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:45:31,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:45:31,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:45:31,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:45:31,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:31,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:45:31,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:45:31,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:45:31,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:45:31,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:45:31,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:45:31,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:45:31,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:45:31,355 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_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-11-21 13:45:31,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:45:31,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:45:31,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:45:31,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:45:31,698 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:45:31,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-21 13:45:34,820 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:45:35,087 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:45:35,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-21 13:45:35,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/data/220630dba/74e2364992704148b0e3d64c07d264f1/FLAG781f3a91c [2022-11-21 13:45:35,115 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/data/220630dba/74e2364992704148b0e3d64c07d264f1 [2022-11-21 13:45:35,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:45:35,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:45:35,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:35,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:45:35,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:45:35,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39dd0bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35, skipping insertion in model container [2022-11-21 13:45:35,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:45:35,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:45:35,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-21 13:45:35,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-21 13:45:35,444 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-21 13:45:35,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-21 13:45:35,453 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-21 13:45:35,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-21 13:45:35,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-21 13:45:35,464 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-21 13:45:35,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-21 13:45:35,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-21 13:45:35,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-21 13:45:35,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-21 13:45:35,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-21 13:45:35,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-21 13:45:35,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-21 13:45:35,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-21 13:45:35,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-21 13:45:35,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-21 13:45:35,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:35,530 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:45:35,563 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-21 13:45:35,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-21 13:45:35,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-21 13:45:35,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-21 13:45:35,582 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-21 13:45:35,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-21 13:45:35,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-21 13:45:35,588 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-21 13:45:35,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-21 13:45:35,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-21 13:45:35,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-21 13:45:35,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-21 13:45:35,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-21 13:45:35,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-21 13:45:35,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-21 13:45:35,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-21 13:45:35,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-21 13:45:35,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-21 13:45:35,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:35,657 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:45:35,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35 WrapperNode [2022-11-21 13:45:35,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:35,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:35,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:45:35,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:45:35,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,735 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 244 [2022-11-21 13:45:35,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:35,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:45:35,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:45:35,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:45:35,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:45:35,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:45:35,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:45:35,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:45:35,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (1/1) ... [2022-11-21 13:45:35,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:35,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:35,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:35,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:45:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:45:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:45:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:45:35,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:45:36,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:45:36,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:45:36,385 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:45:36,392 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:45:36,393 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:45:36,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:36 BoogieIcfgContainer [2022-11-21 13:45:36,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:45:36,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:45:36,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:45:36,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:45:36,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:45:35" (1/3) ... [2022-11-21 13:45:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125c8e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:36, skipping insertion in model container [2022-11-21 13:45:36,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:35" (2/3) ... [2022-11-21 13:45:36,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125c8e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:36, skipping insertion in model container [2022-11-21 13:45:36,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:36" (3/3) ... [2022-11-21 13:45:36,405 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-11-21 13:45:36,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:45:36,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-21 13:45:36,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:45:36,566 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c7cd7c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:45:36,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-21 13:45:36,587 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) [2022-11-21 13:45:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 13:45:36,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:36,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:36,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:36,642 INFO L85 PathProgramCache]: Analyzing trace with hash 123910062, now seen corresponding path program 1 times [2022-11-21 13:45:36,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:36,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649504655] [2022-11-21 13:45:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:36,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:37,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:37,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649504655] [2022-11-21 13:45:37,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649504655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:37,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:37,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874325047] [2022-11-21 13:45:37,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:37,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:37,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:37,201 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) [2022-11-21 13:45:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:37,469 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2022-11-21 13:45:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:37,475 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 [2022-11-21 13:45:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:37,493 INFO L225 Difference]: With dead ends: 123 [2022-11-21 13:45:37,493 INFO L226 Difference]: Without dead ends: 107 [2022-11-21 13:45:37,496 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:37,500 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 82 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:37,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 250 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:45:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-21 13:45:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2022-11-21 13:45:37,564 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) [2022-11-21 13:45:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2022-11-21 13:45:37,571 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 8 [2022-11-21 13:45:37,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:37,571 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2022-11-21 13:45:37,571 INFO L496 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) [2022-11-21 13:45:37,572 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2022-11-21 13:45:37,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 13:45:37,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:37,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:37,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:45:37,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:37,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash 120339118, now seen corresponding path program 1 times [2022-11-21 13:45:37,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:37,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509205862] [2022-11-21 13:45:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:37,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509205862] [2022-11-21 13:45:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509205862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:37,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:37,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044450483] [2022-11-21 13:45:37,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:37,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:37,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:37,799 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) [2022-11-21 13:45:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:37,903 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2022-11-21 13:45:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:37,904 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 [2022-11-21 13:45:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:37,905 INFO L225 Difference]: With dead ends: 107 [2022-11-21 13:45:37,906 INFO L226 Difference]: Without dead ends: 105 [2022-11-21 13:45:37,906 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:37,908 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 45 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:37,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 165 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-21 13:45:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2022-11-21 13:45:37,916 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) [2022-11-21 13:45:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2022-11-21 13:45:37,918 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 8 [2022-11-21 13:45:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:37,919 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2022-11-21 13:45:37,919 INFO L496 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) [2022-11-21 13:45:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2022-11-21 13:45:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 13:45:37,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:37,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:37,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:45:37,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2031737892, now seen corresponding path program 1 times [2022-11-21 13:45:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:37,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023067428] [2022-11-21 13:45:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:38,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:38,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023067428] [2022-11-21 13:45:38,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023067428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:38,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:38,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514466428] [2022-11-21 13:45:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:38,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:38,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:38,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:38,078 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) [2022-11-21 13:45:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:38,210 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-11-21 13:45:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:38,211 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 [2022-11-21 13:45:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:38,212 INFO L225 Difference]: With dead ends: 69 [2022-11-21 13:45:38,212 INFO L226 Difference]: Without dead ends: 67 [2022-11-21 13:45:38,213 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:38,214 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 61 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:38,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 119 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:38,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-21 13:45:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-11-21 13:45:38,231 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) [2022-11-21 13:45:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-11-21 13:45:38,232 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 11 [2022-11-21 13:45:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:38,233 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-11-21 13:45:38,233 INFO L496 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) [2022-11-21 13:45:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-11-21 13:45:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 13:45:38,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:38,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:38,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:45:38,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:38,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1271153903, now seen corresponding path program 1 times [2022-11-21 13:45:38,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:38,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995294225] [2022-11-21 13:45:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:38,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:38,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995294225] [2022-11-21 13:45:38,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995294225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:38,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:38,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:38,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73242495] [2022-11-21 13:45:38,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:38,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:38,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:38,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:38,354 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) [2022-11-21 13:45:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:38,465 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2022-11-21 13:45:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:38,466 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 [2022-11-21 13:45:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:38,467 INFO L225 Difference]: With dead ends: 67 [2022-11-21 13:45:38,467 INFO L226 Difference]: Without dead ends: 65 [2022-11-21 13:45:38,468 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:38,469 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 59 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:38,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 113 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-21 13:45:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-11-21 13:45:38,477 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) [2022-11-21 13:45:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-11-21 13:45:38,478 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 11 [2022-11-21 13:45:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:38,479 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-11-21 13:45:38,479 INFO L496 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) [2022-11-21 13:45:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-11-21 13:45:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 13:45:38,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:38,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:38,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:45:38,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1440630601, now seen corresponding path program 1 times [2022-11-21 13:45:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:38,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372599119] [2022-11-21 13:45:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:38,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:38,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372599119] [2022-11-21 13:45:38,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372599119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:38,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:38,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:38,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991752116] [2022-11-21 13:45:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:38,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:38,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:38,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:38,592 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) [2022-11-21 13:45:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:38,662 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2022-11-21 13:45:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:38,663 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 [2022-11-21 13:45:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:38,664 INFO L225 Difference]: With dead ends: 65 [2022-11-21 13:45:38,664 INFO L226 Difference]: Without dead ends: 61 [2022-11-21 13:45:38,664 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:38,666 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 16 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:38,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 136 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-21 13:45:38,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-11-21 13:45:38,673 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) [2022-11-21 13:45:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-11-21 13:45:38,674 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 12 [2022-11-21 13:45:38,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:38,674 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-11-21 13:45:38,675 INFO L496 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) [2022-11-21 13:45:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-11-21 13:45:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 13:45:38,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:38,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:38,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:45:38,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:38,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:38,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1440142029, now seen corresponding path program 1 times [2022-11-21 13:45:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:38,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692401086] [2022-11-21 13:45:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:38,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:38,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:38,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692401086] [2022-11-21 13:45:38,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692401086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:38,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:38,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:38,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772314448] [2022-11-21 13:45:38,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:38,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:38,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:38,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:38,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:38,759 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) [2022-11-21 13:45:38,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:38,895 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2022-11-21 13:45:38,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:38,896 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 [2022-11-21 13:45:38,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:38,897 INFO L225 Difference]: With dead ends: 95 [2022-11-21 13:45:38,897 INFO L226 Difference]: Without dead ends: 93 [2022-11-21 13:45:38,898 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:38,899 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 90 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:38,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 144 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:38,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-21 13:45:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 57. [2022-11-21 13:45:38,907 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) [2022-11-21 13:45:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-11-21 13:45:38,908 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 12 [2022-11-21 13:45:38,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:38,909 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-11-21 13:45:38,909 INFO L496 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) [2022-11-21 13:45:38,909 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-11-21 13:45:38,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 13:45:38,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:38,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:38,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:45:38,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:38,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1440126141, now seen corresponding path program 1 times [2022-11-21 13:45:38,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:38,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027343091] [2022-11-21 13:45:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:38,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:39,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:39,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027343091] [2022-11-21 13:45:39,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027343091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:39,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:39,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:39,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34781188] [2022-11-21 13:45:39,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:39,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:39,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:39,046 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) [2022-11-21 13:45:39,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:39,181 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-11-21 13:45:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:39,182 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 [2022-11-21 13:45:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:39,186 INFO L225 Difference]: With dead ends: 100 [2022-11-21 13:45:39,186 INFO L226 Difference]: Without dead ends: 98 [2022-11-21 13:45:39,186 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:39,189 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 95 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:39,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 144 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-21 13:45:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 55. [2022-11-21 13:45:39,211 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) [2022-11-21 13:45:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-11-21 13:45:39,216 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 12 [2022-11-21 13:45:39,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:39,217 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-11-21 13:45:39,218 INFO L496 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) [2022-11-21 13:45:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-11-21 13:45:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 13:45:39,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:39,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:39,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:45:39,223 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:39,228 INFO L85 PathProgramCache]: Analyzing trace with hash -751061257, now seen corresponding path program 1 times [2022-11-21 13:45:39,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:39,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747369931] [2022-11-21 13:45:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:39,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:39,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:39,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747369931] [2022-11-21 13:45:39,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747369931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:39,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:39,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:39,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79253261] [2022-11-21 13:45:39,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:39,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:39,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:39,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:39,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:39,297 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) [2022-11-21 13:45:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:39,354 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-11-21 13:45:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:39,355 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 [2022-11-21 13:45:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:39,356 INFO L225 Difference]: With dead ends: 57 [2022-11-21 13:45:39,357 INFO L226 Difference]: Without dead ends: 53 [2022-11-21 13:45:39,357 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:39,360 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:39,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 118 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:45:39,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-21 13:45:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-11-21 13:45:39,373 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) [2022-11-21 13:45:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-11-21 13:45:39,379 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 12 [2022-11-21 13:45:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:39,379 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-11-21 13:45:39,380 INFO L496 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) [2022-11-21 13:45:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-11-21 13:45:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 13:45:39,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:39,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:39,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:45:39,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1694725733, now seen corresponding path program 1 times [2022-11-21 13:45:39,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:39,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319137194] [2022-11-21 13:45:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:39,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:39,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:39,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319137194] [2022-11-21 13:45:39,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319137194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:39,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:39,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857489891] [2022-11-21 13:45:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:39,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:39,668 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) [2022-11-21 13:45:39,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:39,842 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2022-11-21 13:45:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:45:39,842 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 [2022-11-21 13:45:39,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:39,843 INFO L225 Difference]: With dead ends: 118 [2022-11-21 13:45:39,843 INFO L226 Difference]: Without dead ends: 116 [2022-11-21 13:45:39,844 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:39,845 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 75 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:39,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 223 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-21 13:45:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 56. [2022-11-21 13:45:39,852 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) [2022-11-21 13:45:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-11-21 13:45:39,853 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2022-11-21 13:45:39,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:39,853 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-11-21 13:45:39,854 INFO L496 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) [2022-11-21 13:45:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-11-21 13:45:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 13:45:39,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:39,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:39,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:45:39,855 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1694233189, now seen corresponding path program 1 times [2022-11-21 13:45:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:39,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83912512] [2022-11-21 13:45:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:39,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:39,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83912512] [2022-11-21 13:45:39,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83912512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:39,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:39,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:39,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930506669] [2022-11-21 13:45:39,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:39,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:39,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:39,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:39,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:39,992 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) [2022-11-21 13:45:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:40,160 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2022-11-21 13:45:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:45:40,161 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 [2022-11-21 13:45:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:40,162 INFO L225 Difference]: With dead ends: 116 [2022-11-21 13:45:40,162 INFO L226 Difference]: Without dead ends: 114 [2022-11-21 13:45:40,162 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:40,163 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 87 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:40,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 195 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:40,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-21 13:45:40,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 58. [2022-11-21 13:45:40,170 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) [2022-11-21 13:45:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-21 13:45:40,171 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 13 [2022-11-21 13:45:40,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:40,171 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-21 13:45:40,172 INFO L496 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) [2022-11-21 13:45:40,172 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-21 13:45:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 13:45:40,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:40,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:40,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 13:45:40,173 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1791008026, now seen corresponding path program 1 times [2022-11-21 13:45:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:40,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21228971] [2022-11-21 13:45:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:40,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:40,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:40,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21228971] [2022-11-21 13:45:40,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21228971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:40,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:40,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277340732] [2022-11-21 13:45:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:40,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:40,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:40,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:40,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:40,238 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) [2022-11-21 13:45:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:40,333 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-11-21 13:45:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:40,333 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 [2022-11-21 13:45:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:40,334 INFO L225 Difference]: With dead ends: 76 [2022-11-21 13:45:40,334 INFO L226 Difference]: Without dead ends: 74 [2022-11-21 13:45:40,335 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:40,335 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 69 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:40,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 103 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:40,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-21 13:45:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2022-11-21 13:45:40,342 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) [2022-11-21 13:45:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-11-21 13:45:40,343 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2022-11-21 13:45:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:40,343 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-11-21 13:45:40,344 INFO L496 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) [2022-11-21 13:45:40,344 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-11-21 13:45:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 13:45:40,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:40,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:40,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 13:45:40,345 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1789284122, now seen corresponding path program 1 times [2022-11-21 13:45:40,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:40,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037406921] [2022-11-21 13:45:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:40,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:40,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037406921] [2022-11-21 13:45:40,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037406921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:40,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:40,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:40,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215681804] [2022-11-21 13:45:40,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:40,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:40,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:40,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:40,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:40,409 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) [2022-11-21 13:45:40,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:40,488 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2022-11-21 13:45:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:40,489 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 [2022-11-21 13:45:40,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:40,489 INFO L225 Difference]: With dead ends: 57 [2022-11-21 13:45:40,490 INFO L226 Difference]: Without dead ends: 55 [2022-11-21 13:45:40,490 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:40,491 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 41 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:40,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-21 13:45:40,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-11-21 13:45:40,497 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) [2022-11-21 13:45:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-11-21 13:45:40,497 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2022-11-21 13:45:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:40,498 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-11-21 13:45:40,498 INFO L496 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) [2022-11-21 13:45:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-11-21 13:45:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:45:40,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:40,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:40,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 13:45:40,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:40,500 INFO L85 PathProgramCache]: Analyzing trace with hash 313330138, now seen corresponding path program 1 times [2022-11-21 13:45:40,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:40,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769242199] [2022-11-21 13:45:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:40,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:40,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:40,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769242199] [2022-11-21 13:45:40,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769242199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:40,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:40,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905526059] [2022-11-21 13:45:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:40,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:40,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:40,730 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) [2022-11-21 13:45:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:40,879 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2022-11-21 13:45:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:45:40,880 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 [2022-11-21 13:45:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:40,882 INFO L225 Difference]: With dead ends: 92 [2022-11-21 13:45:40,882 INFO L226 Difference]: Without dead ends: 90 [2022-11-21 13:45:40,883 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:40,883 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 56 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:40,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 164 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-21 13:45:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2022-11-21 13:45:40,894 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) [2022-11-21 13:45:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-11-21 13:45:40,895 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 14 [2022-11-21 13:45:40,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:40,895 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-11-21 13:45:40,896 INFO L496 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) [2022-11-21 13:45:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-11-21 13:45:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:45:40,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:40,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:40,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 13:45:40,897 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:40,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash 314877283, now seen corresponding path program 1 times [2022-11-21 13:45:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:40,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89588220] [2022-11-21 13:45:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:40,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:40,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89588220] [2022-11-21 13:45:40,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89588220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:40,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:40,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:40,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301640083] [2022-11-21 13:45:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:40,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:40,983 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) [2022-11-21 13:45:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:41,088 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-11-21 13:45:41,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:41,089 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 [2022-11-21 13:45:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:41,090 INFO L225 Difference]: With dead ends: 80 [2022-11-21 13:45:41,090 INFO L226 Difference]: Without dead ends: 78 [2022-11-21 13:45:41,090 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:41,091 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:41,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 95 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-21 13:45:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-11-21 13:45:41,102 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) [2022-11-21 13:45:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-11-21 13:45:41,102 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 14 [2022-11-21 13:45:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:41,103 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-11-21 13:45:41,103 INFO L496 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) [2022-11-21 13:45:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-11-21 13:45:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:45:41,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:41,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:41,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 13:45:41,105 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:41,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:41,105 INFO L85 PathProgramCache]: Analyzing trace with hash 366771218, now seen corresponding path program 1 times [2022-11-21 13:45:41,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:41,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39964930] [2022-11-21 13:45:41,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:41,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:41,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:41,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39964930] [2022-11-21 13:45:41,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39964930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:41,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:41,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:41,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432636042] [2022-11-21 13:45:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:41,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:41,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:41,284 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) [2022-11-21 13:45:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:41,411 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-11-21 13:45:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:45:41,411 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 [2022-11-21 13:45:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:41,412 INFO L225 Difference]: With dead ends: 70 [2022-11-21 13:45:41,412 INFO L226 Difference]: Without dead ends: 66 [2022-11-21 13:45:41,413 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:41,413 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:41,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 117 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-21 13:45:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2022-11-21 13:45:41,421 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) [2022-11-21 13:45:41,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-11-21 13:45:41,422 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2022-11-21 13:45:41,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:41,422 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-11-21 13:45:41,422 INFO L496 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) [2022-11-21 13:45:41,422 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-11-21 13:45:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 13:45:41,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:41,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:41,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 13:45:41,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:41,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1171265312, now seen corresponding path program 1 times [2022-11-21 13:45:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:41,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324410513] [2022-11-21 13:45:41,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:41,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:41,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324410513] [2022-11-21 13:45:41,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324410513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:41,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:41,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:41,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728009739] [2022-11-21 13:45:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:41,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:41,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:41,557 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) [2022-11-21 13:45:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:41,694 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-11-21 13:45:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:45:41,695 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 [2022-11-21 13:45:41,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:41,696 INFO L225 Difference]: With dead ends: 87 [2022-11-21 13:45:41,696 INFO L226 Difference]: Without dead ends: 85 [2022-11-21 13:45:41,696 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:41,697 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 51 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:41,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 147 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-21 13:45:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2022-11-21 13:45:41,723 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) [2022-11-21 13:45:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-11-21 13:45:41,724 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 15 [2022-11-21 13:45:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:41,724 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-11-21 13:45:41,724 INFO L496 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) [2022-11-21 13:45:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-11-21 13:45:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 13:45:41,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:41,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:41,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 13:45:41,726 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:41,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:41,726 INFO L85 PathProgramCache]: Analyzing trace with hash 462679229, now seen corresponding path program 1 times [2022-11-21 13:45:41,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:41,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397152181] [2022-11-21 13:45:41,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:41,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:41,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397152181] [2022-11-21 13:45:41,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397152181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:41,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:41,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:41,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669723986] [2022-11-21 13:45:41,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:41,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:41,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:41,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:41,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:41,789 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) [2022-11-21 13:45:41,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:41,827 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-11-21 13:45:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:41,828 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 [2022-11-21 13:45:41,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:41,829 INFO L225 Difference]: With dead ends: 62 [2022-11-21 13:45:41,829 INFO L226 Difference]: Without dead ends: 60 [2022-11-21 13:45:41,829 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:41,830 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 37 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:41,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 66 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:45:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-21 13:45:41,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-21 13:45:41,840 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) [2022-11-21 13:45:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-11-21 13:45:41,841 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 16 [2022-11-21 13:45:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:41,841 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-11-21 13:45:41,841 INFO L496 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) [2022-11-21 13:45:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-11-21 13:45:41,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 13:45:41,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:41,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:41,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 13:45:41,842 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1458158324, now seen corresponding path program 1 times [2022-11-21 13:45:41,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:41,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753103870] [2022-11-21 13:45:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:41,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753103870] [2022-11-21 13:45:41,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753103870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:41,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:41,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609362787] [2022-11-21 13:45:41,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:41,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:41,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:41,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:41,902 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) [2022-11-21 13:45:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:41,958 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-11-21 13:45:41,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:41,959 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 [2022-11-21 13:45:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:41,959 INFO L225 Difference]: With dead ends: 60 [2022-11-21 13:45:41,960 INFO L226 Difference]: Without dead ends: 56 [2022-11-21 13:45:41,960 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:41,961 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:41,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:45:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-21 13:45:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-21 13:45:41,970 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) [2022-11-21 13:45:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-11-21 13:45:41,971 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 17 [2022-11-21 13:45:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:41,972 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-11-21 13:45:41,972 INFO L496 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) [2022-11-21 13:45:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-11-21 13:45:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 13:45:41,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:41,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 13:45:41,973 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1747922500, now seen corresponding path program 1 times [2022-11-21 13:45:41,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:41,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183117466] [2022-11-21 13:45:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:41,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:42,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:42,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183117466] [2022-11-21 13:45:42,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183117466] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:45:42,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51564118] [2022-11-21 13:45:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:42,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:42,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:42,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:42,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:45:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:42,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-21 13:45:42,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:42,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 13:45:42,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51564118] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:42,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:45:42,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2022-11-21 13:45:42,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353383570] [2022-11-21 13:45:42,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:42,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 13:45:42,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 13:45:42,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:45:42,834 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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) [2022-11-21 13:45:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:43,169 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2022-11-21 13:45:43,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 13:45:43,170 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 [2022-11-21 13:45:43,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:43,171 INFO L225 Difference]: With dead ends: 121 [2022-11-21 13:45:43,171 INFO L226 Difference]: Without dead ends: 119 [2022-11-21 13:45:43,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-11-21 13:45:43,175 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 278 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:43,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 118 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:45:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-21 13:45:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 52. [2022-11-21 13:45:43,184 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) [2022-11-21 13:45:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-11-21 13:45:43,185 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 18 [2022-11-21 13:45:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:43,185 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-11-21 13:45:43,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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) [2022-11-21 13:45:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-11-21 13:45:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 13:45:43,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:43,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:43,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:43,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:43,395 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:43,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:43,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1748415044, now seen corresponding path program 1 times [2022-11-21 13:45:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:43,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926178150] [2022-11-21 13:45:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:43,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926178150] [2022-11-21 13:45:43,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926178150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:45:43,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805123342] [2022-11-21 13:45:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:43,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:43,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:45:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:43,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-21 13:45:43,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:43,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:44,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 13:45:44,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805123342] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:44,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:45:44,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2022-11-21 13:45:44,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536262024] [2022-11-21 13:45:44,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:44,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-21 13:45:44,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:44,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-21 13:45:44,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-21 13:45:44,043 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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) [2022-11-21 13:45:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:44,417 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2022-11-21 13:45:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 13:45:44,418 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 [2022-11-21 13:45:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:44,419 INFO L225 Difference]: With dead ends: 100 [2022-11-21 13:45:44,419 INFO L226 Difference]: Without dead ends: 98 [2022-11-21 13:45:44,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-11-21 13:45:44,420 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 225 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:44,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 142 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:45:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-21 13:45:44,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 45. [2022-11-21 13:45:44,430 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) [2022-11-21 13:45:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-21 13:45:44,432 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-21 13:45:44,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:44,432 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-21 13:45:44,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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) [2022-11-21 13:45:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-21 13:45:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 13:45:44,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:44,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:44,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:44,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:44,641 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:44,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2026613132, now seen corresponding path program 1 times [2022-11-21 13:45:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:44,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58619185] [2022-11-21 13:45:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:44,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:44,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58619185] [2022-11-21 13:45:44,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58619185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:44,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:44,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:44,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489872027] [2022-11-21 13:45:44,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:44,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:44,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:44,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:44,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:44,759 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) [2022-11-21 13:45:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:44,880 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-11-21 13:45:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:45:44,880 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 [2022-11-21 13:45:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:44,881 INFO L225 Difference]: With dead ends: 60 [2022-11-21 13:45:44,881 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 13:45:44,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:45:44,882 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 94 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:44,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 39 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 13:45:44,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2022-11-21 13:45:44,890 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) [2022-11-21 13:45:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2022-11-21 13:45:44,891 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 18 [2022-11-21 13:45:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:44,891 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2022-11-21 13:45:44,891 INFO L496 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) [2022-11-21 13:45:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2022-11-21 13:45:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 13:45:44,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:44,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:44,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 13:45:44,893 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:44,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash -684716563, now seen corresponding path program 1 times [2022-11-21 13:45:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:44,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391590071] [2022-11-21 13:45:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:45,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:45,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391590071] [2022-11-21 13:45:45,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391590071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:45,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:45,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:45:45,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995029252] [2022-11-21 13:45:45,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:45,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:45:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:45:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:45:45,003 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) [2022-11-21 13:45:45,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:45,090 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-11-21 13:45:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:45:45,093 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 [2022-11-21 13:45:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:45,094 INFO L225 Difference]: With dead ends: 52 [2022-11-21 13:45:45,094 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 13:45:45,095 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:45,095 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 87 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:45,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 13:45:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2022-11-21 13:45:45,104 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) [2022-11-21 13:45:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-11-21 13:45:45,104 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 19 [2022-11-21 13:45:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:45,105 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-11-21 13:45:45,105 INFO L496 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) [2022-11-21 13:45:45,105 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-11-21 13:45:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 13:45:45,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:45,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:45,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 13:45:45,106 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-11-21 13:45:45,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash -631275483, now seen corresponding path program 1 times [2022-11-21 13:45:45,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:45,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696308734] [2022-11-21 13:45:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:45,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:45,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696308734] [2022-11-21 13:45:45,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696308734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:45,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:45,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:45:45,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477992052] [2022-11-21 13:45:45,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:45,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:45:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:45:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:45:45,236 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) [2022-11-21 13:45:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:45,308 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-11-21 13:45:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:45,309 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 [2022-11-21 13:45:45,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:45,309 INFO L225 Difference]: With dead ends: 35 [2022-11-21 13:45:45,309 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 13:45:45,310 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:45:45,311 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:45,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 25 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 13:45:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 13:45:45,312 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) [2022-11-21 13:45:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 13:45:45,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-21 13:45:45,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:45,313 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:45:45,313 INFO L496 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) [2022-11-21 13:45:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:45:45,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 13:45:45,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2022-11-21 13:45:45,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2022-11-21 13:45:45,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2022-11-21 13:45:45,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2022-11-21 13:45:45,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2022-11-21 13:45:45,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2022-11-21 13:45:45,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2022-11-21 13:45:45,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2022-11-21 13:45:45,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2022-11-21 13:45:45,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2022-11-21 13:45:45,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2022-11-21 13:45:45,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2022-11-21 13:45:45,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2022-11-21 13:45:45,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2022-11-21 13:45:45,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2022-11-21 13:45:45,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2022-11-21 13:45:45,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2022-11-21 13:45:45,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2022-11-21 13:45:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 13:45:45,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 13:47:15,522 WARN L233 SmtUtils]: Spent 1.50m on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-21 13:47:20,766 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 86 DAG size of output: 41 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-21 13:47:42,079 WARN L233 SmtUtils]: Spent 19.72s on a formula simplification. DAG size of input: 75 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-21 13:47:42,895 INFO L899 garLoopResultBuilder]: For program point L126(line 126) no Hoare annotation was computed. [2022-11-21 13:47:42,895 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point L366(line 366) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 297) no Hoare annotation was computed. [2022-11-21 13:47:42,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 126) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point L309(line 309) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L902 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: true [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 345) no Hoare annotation was computed. [2022-11-21 13:47:42,897 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-11-21 13:47:42,898 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (and (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|)) (let ((.cse2 (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) (.cse1 (= |ULTIMATE.start_main_~main__t~0#1| 0))) (let ((.cse0 (let ((.cse3 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 0)))) (or (and .cse2 .cse3) (and .cse3 .cse1))))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1)) (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~18#1| 0)) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 1) .cse2 .cse0))))) [2022-11-21 13:47:42,898 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse5 (<= |ULTIMATE.start_main_~main__t~0#1| 1)) (.cse0 (= |ULTIMATE.start_main_~main__t~0#1| 0)) (.cse2 (<= 1 |ULTIMATE.start_main_~main__t~0#1|))) (let ((.cse3 (let ((.cse6 (or .cse0 (and .cse2 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 0)) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 0)))))) (or (and .cse5 .cse6) (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 0)) .cse6)))) (.cse4 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1)) (.cse1 (< |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (or (and .cse0 .cse1) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 1) .cse2 .cse3 .cse4 .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse1)))) [2022-11-21 13:47:42,898 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-11-21 13:47:42,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 278) no Hoare annotation was computed. [2022-11-21 13:47:42,898 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 333) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2022-11-21 13:47:42,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L345(line 345) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2022-11-21 13:47:42,900 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 13:47:42,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L902 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: true [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2022-11-21 13:47:42,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2022-11-21 13:47:42,903 INFO L895 garLoopResultBuilder]: At program point L249(lines 101 251) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|))) [2022-11-21 13:47:42,903 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2022-11-21 13:47:42,908 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2022-11-21 13:47:42,908 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-11-21 13:47:42,908 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2022-11-21 13:47:42,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 309) no Hoare annotation was computed. [2022-11-21 13:47:42,909 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-11-21 13:47:42,909 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-11-21 13:47:42,913 INFO L444 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] [2022-11-21 13:47:42,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:47:42,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:47:42 BoogieIcfgContainer [2022-11-21 13:47:42,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:47:42,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:47:42,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:47:42,950 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:47:42,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:36" (3/4) ... [2022-11-21 13:47:42,953 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:47:42,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-21 13:47:42,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 13:47:42,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:47:42,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:47:43,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:47:43,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:47:43,048 INFO L158 Benchmark]: Toolchain (without parser) took 127927.95ms. Allocated memory was 182.5MB in the beginning and 752.9MB in the end (delta: 570.4MB). Free memory was 139.7MB in the beginning and 572.1MB in the end (delta: -432.4MB). Peak memory consumption was 139.3MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,048 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 77.4MB in the beginning and 77.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:47:43,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.14ms. Allocated memory is still 182.5MB. Free memory was 139.3MB in the beginning and 122.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.42ms. Allocated memory is still 182.5MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,050 INFO L158 Benchmark]: Boogie Preprocessor took 62.74ms. Allocated memory is still 182.5MB. Free memory was 120.5MB in the beginning and 119.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,050 INFO L158 Benchmark]: RCFGBuilder took 594.27ms. Allocated memory is still 182.5MB. Free memory was 119.2MB in the beginning and 103.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,053 INFO L158 Benchmark]: TraceAbstraction took 126550.53ms. Allocated memory was 182.5MB in the beginning and 752.9MB in the end (delta: 570.4MB). Free memory was 102.4MB in the beginning and 577.3MB in the end (delta: -474.9MB). Peak memory consumption was 405.6MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,054 INFO L158 Benchmark]: Witness Printer took 98.41ms. Allocated memory is still 752.9MB. Free memory was 577.3MB in the beginning and 572.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:47:43,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 77.4MB in the beginning and 77.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.14ms. Allocated memory is still 182.5MB. Free memory was 139.3MB in the beginning and 122.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.42ms. Allocated memory is still 182.5MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.74ms. Allocated memory is still 182.5MB. Free memory was 120.5MB in the beginning and 119.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.27ms. Allocated memory is still 182.5MB. Free memory was 119.2MB in the beginning and 103.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 126550.53ms. Allocated memory was 182.5MB in the beginning and 752.9MB in the end (delta: 570.4MB). Free memory was 102.4MB in the beginning and 577.3MB in the end (delta: -474.9MB). Peak memory consumption was 405.6MB. Max. memory is 16.1GB. * Witness Printer took 98.41ms. Allocated memory is still 752.9MB. Free memory was 577.3MB in the beginning and 572.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 126.4s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 117.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1679 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1679 mSDsluCounter, 2824 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1796 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2139 IncrementalHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 1028 mSDtfsCounter, 2139 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 96 SyntacticMatches, 4 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 531 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 193 HoareAnnotationTreeSize, 6 FomulaSimplifications, 1951226 FormulaSimplificationTreeSizeReduction, 116.8s HoareSimplificationTime, 6 FomulaSimplificationsInter, 11241783 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 1663 SizeOfPredicates, 12 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 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 == 0 && main__t < main__tagbuf_len) || ((((__VERIFIER_assert__cond == 1 && 1 <= main__t) && ((main__t <= 1 && (main__t == 0 || ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)))) || (!(__VERIFIER_assert__cond == 0) && (main__t == 0 || ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)))))) && __VERIFIER_assert__cond == 1) && main__t < main__tagbuf_len)) || ((((1 <= main__t && ((main__t <= 1 && (main__t == 0 || ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)))) || (!(__VERIFIER_assert__cond == 0) && (main__t == 0 || ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)))))) && __VERIFIER_assert__cond == 1) && main__t <= 1) && main__t < main__tagbuf_len) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 1 <= main__t && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: !(main__tagbuf_len <= main__t) && (((((1 <= main__t && !(__VERIFIER_assert__cond == 0)) || (!(__VERIFIER_assert__cond == 0) && main__t == 0)) && main__t == 0) && __VERIFIER_assert__cond == 1) || (((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 1 <= main__t) && ((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! [2022-11-21 13:47:43,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63693867-1be7-4e3b-aa2f-9665692873c2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE