./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF --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 c74f92ba3d978b3a2efb098ebc8eb373bc42abebaabf8c6efaf148fbe05036e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:50:16,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:50:16,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:50:16,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:50:16,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:50:16,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:50:16,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:50:16,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:50:16,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:50:16,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:50:16,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:50:16,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:50:16,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:50:16,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:50:16,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:50:16,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:50:16,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:50:16,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:50:16,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:50:16,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:50:16,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:50:16,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:50:16,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:50:16,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:50:16,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:50:16,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:50:16,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:50:16,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:50:16,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:50:16,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:50:16,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:50:16,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:50:16,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:50:16,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:50:16,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:50:16,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:50:16,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:50:16,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:50:16,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:50:16,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:50:16,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:50:16,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:50:16,303 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:50:16,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:50:16,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:50:16,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:50:16,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:50:16,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:50:16,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:50:16,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:50:16,316 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:50:16,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:50:16,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:50:16,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:50:16,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:50:16,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:50:16,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:50:16,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:50:16,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:50:16,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:50:16,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:50:16,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:50:16,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:50:16,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:50:16,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:50:16,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:50:16,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:50:16,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:50:16,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:50:16,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:50:16,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:50:16,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:50:16,324 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:50:16,324 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:50:16,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:50:16,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:50:16,325 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_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74f92ba3d978b3a2efb098ebc8eb373bc42abebaabf8c6efaf148fbe05036e0 [2021-11-20 05:50:16,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:50:16,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:50:16,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:50:16,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:50:16,720 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:50:16,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-20 05:50:16,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/data/5a56b4432/a262b915e5094d68af7bbb5c4fab175a/FLAGd901bb026 [2021-11-20 05:50:17,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:50:17,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-20 05:50:17,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/data/5a56b4432/a262b915e5094d68af7bbb5c4fab175a/FLAGd901bb026 [2021-11-20 05:50:17,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/data/5a56b4432/a262b915e5094d68af7bbb5c4fab175a [2021-11-20 05:50:17,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:50:17,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:50:17,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:50:17,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:50:17,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:50:17,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:50:17" (1/1) ... [2021-11-20 05:50:17,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674a6bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:17, skipping insertion in model container [2021-11-20 05:50:17,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:50:17" (1/1) ... [2021-11-20 05:50:17,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:50:17,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:50:18,308 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18857,18870] [2021-11-20 05:50:18,354 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25957,25970] [2021-11-20 05:50:18,397 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29482,29495] [2021-11-20 05:50:18,433 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32880,32893] [2021-11-20 05:50:18,475 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36938,36951] [2021-11-20 05:50:18,500 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40412,40425] [2021-11-20 05:50:18,536 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43977,43990] [2021-11-20 05:50:18,565 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47412,47425] [2021-11-20 05:50:18,589 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[51091,51104] [2021-11-20 05:50:18,619 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54693,54706] [2021-11-20 05:50:18,643 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58222,58235] [2021-11-20 05:50:18,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:50:18,741 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:50:18,879 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18857,18870] [2021-11-20 05:50:18,904 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25957,25970] [2021-11-20 05:50:18,917 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29482,29495] [2021-11-20 05:50:18,932 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32880,32893] [2021-11-20 05:50:18,947 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36938,36951] [2021-11-20 05:50:18,959 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40412,40425] [2021-11-20 05:50:18,970 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43977,43990] [2021-11-20 05:50:18,982 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47412,47425] [2021-11-20 05:50:18,996 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[51091,51104] [2021-11-20 05:50:19,009 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54693,54706] [2021-11-20 05:50:19,021 WARN L230 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_0d62ce57-4f76-4151-a679-200e4e1f1727/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58222,58235] [2021-11-20 05:50:19,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:50:19,070 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:50:19,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19 WrapperNode [2021-11-20 05:50:19,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:50:19,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:50:19,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:50:19,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:50:19,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,272 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2770 [2021-11-20 05:50:19,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:50:19,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:50:19,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:50:19,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:50:19,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:50:19,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:50:19,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:50:19,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:50:19,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (1/1) ... [2021-11-20 05:50:19,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:50:19,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:19,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:50:19,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:50:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:50:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:50:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:50:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:50:19,820 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:50:19,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:50:21,387 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:50:21,410 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:50:21,410 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:50:21,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:50:21 BoogieIcfgContainer [2021-11-20 05:50:21,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:50:21,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:50:21,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:50:21,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:50:21,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:50:17" (1/3) ... [2021-11-20 05:50:21,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1590643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:50:21, skipping insertion in model container [2021-11-20 05:50:21,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:50:19" (2/3) ... [2021-11-20 05:50:21,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1590643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:50:21, skipping insertion in model container [2021-11-20 05:50:21,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:50:21" (3/3) ... [2021-11-20 05:50:21,423 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-11-20 05:50:21,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:50:21,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-20 05:50:21,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:50:21,536 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:50:21,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-20 05:50:21,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 05:50:21,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:21,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:21,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:21,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash 646480323, now seen corresponding path program 1 times [2021-11-20 05:50:21,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:21,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51044783] [2021-11-20 05:50:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:21,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:22,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:22,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51044783] [2021-11-20 05:50:22,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51044783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:22,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:22,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:50:22,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993046428] [2021-11-20 05:50:22,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:22,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:50:22,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:50:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:50:22,097 INFO L87 Difference]: Start difference. First operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 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 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:22,853 INFO L93 Difference]: Finished difference Result 785 states and 1334 transitions. [2021-11-20 05:50:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:50:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-20 05:50:22,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:22,884 INFO L225 Difference]: With dead ends: 785 [2021-11-20 05:50:22,885 INFO L226 Difference]: Without dead ends: 503 [2021-11-20 05:50:22,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:50:22,900 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2416 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:22,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 551 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-11-20 05:50:23,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2021-11-20 05:50:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 492 states have (on average 1.274390243902439) internal successors, (627), 502 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:23,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 627 transitions. [2021-11-20 05:50:23,008 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 627 transitions. Word has length 60 [2021-11-20 05:50:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:23,008 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 627 transitions. [2021-11-20 05:50:23,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:23,009 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 627 transitions. [2021-11-20 05:50:23,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 05:50:23,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:23,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:23,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:50:23,014 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 221242932, now seen corresponding path program 1 times [2021-11-20 05:50:23,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:23,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881301342] [2021-11-20 05:50:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:23,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:23,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:23,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881301342] [2021-11-20 05:50:23,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881301342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:23,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:23,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:50:23,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404539448] [2021-11-20 05:50:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:23,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:50:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:23,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:50:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:50:23,215 INFO L87 Difference]: Start difference. First operand 503 states and 627 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:23,624 INFO L93 Difference]: Finished difference Result 637 states and 796 transitions. [2021-11-20 05:50:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:50:23,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-20 05:50:23,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:23,627 INFO L225 Difference]: With dead ends: 637 [2021-11-20 05:50:23,628 INFO L226 Difference]: Without dead ends: 381 [2021-11-20 05:50:23,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:50:23,630 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1366 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:23,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1366 Valid, 266 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-20 05:50:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-20 05:50:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 370 states have (on average 1.2864864864864864) internal successors, (476), 380 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 476 transitions. [2021-11-20 05:50:23,657 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 476 transitions. Word has length 60 [2021-11-20 05:50:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:23,657 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 476 transitions. [2021-11-20 05:50:23,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 476 transitions. [2021-11-20 05:50:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 05:50:23,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:23,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:23,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:50:23,661 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2147344789, now seen corresponding path program 1 times [2021-11-20 05:50:23,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:23,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464962478] [2021-11-20 05:50:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:23,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:23,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:23,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464962478] [2021-11-20 05:50:23,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464962478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:23,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:23,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:50:23,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379195895] [2021-11-20 05:50:23,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:23,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:50:23,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:23,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:50:23,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:50:23,763 INFO L87 Difference]: Start difference. First operand 381 states and 476 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:24,224 INFO L93 Difference]: Finished difference Result 713 states and 908 transitions. [2021-11-20 05:50:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:50:24,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-20 05:50:24,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:24,228 INFO L225 Difference]: With dead ends: 713 [2021-11-20 05:50:24,229 INFO L226 Difference]: Without dead ends: 509 [2021-11-20 05:50:24,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:50:24,233 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 1661 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:24,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1661 Valid, 371 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:50:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-11-20 05:50:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 450. [2021-11-20 05:50:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 439 states have (on average 1.3416856492027336) internal successors, (589), 449 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 589 transitions. [2021-11-20 05:50:24,272 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 589 transitions. Word has length 60 [2021-11-20 05:50:24,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:24,274 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 589 transitions. [2021-11-20 05:50:24,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 589 transitions. [2021-11-20 05:50:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 05:50:24,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:24,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:24,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:50:24,277 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:24,278 INFO L85 PathProgramCache]: Analyzing trace with hash 604643521, now seen corresponding path program 1 times [2021-11-20 05:50:24,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:24,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044460525] [2021-11-20 05:50:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:24,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:24,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044460525] [2021-11-20 05:50:24,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044460525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:24,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:24,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:50:24,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237454360] [2021-11-20 05:50:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:24,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:50:24,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:24,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:50:24,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:50:24,405 INFO L87 Difference]: Start difference. First operand 450 states and 589 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:24,705 INFO L93 Difference]: Finished difference Result 606 states and 794 transitions. [2021-11-20 05:50:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:50:24,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2021-11-20 05:50:24,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:24,709 INFO L225 Difference]: With dead ends: 606 [2021-11-20 05:50:24,709 INFO L226 Difference]: Without dead ends: 357 [2021-11-20 05:50:24,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:50:24,711 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 902 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:24,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 209 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-11-20 05:50:24,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-11-20 05:50:24,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.346820809248555) internal successors, (466), 356 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 466 transitions. [2021-11-20 05:50:24,775 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 466 transitions. Word has length 62 [2021-11-20 05:50:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:24,776 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 466 transitions. [2021-11-20 05:50:24,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 466 transitions. [2021-11-20 05:50:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 05:50:24,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:24,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:24,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:50:24,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -699288056, now seen corresponding path program 1 times [2021-11-20 05:50:24,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:24,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070176848] [2021-11-20 05:50:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:24,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:24,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:24,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070176848] [2021-11-20 05:50:24,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070176848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:24,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:24,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:24,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224222479] [2021-11-20 05:50:24,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:24,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:24,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:24,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:24,992 INFO L87 Difference]: Start difference. First operand 357 states and 466 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:25,847 INFO L93 Difference]: Finished difference Result 810 states and 1097 transitions. [2021-11-20 05:50:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2021-11-20 05:50:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:25,853 INFO L225 Difference]: With dead ends: 810 [2021-11-20 05:50:25,853 INFO L226 Difference]: Without dead ends: 666 [2021-11-20 05:50:25,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:25,855 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 2135 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:25,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2135 Valid, 923 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-20 05:50:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 357. [2021-11-20 05:50:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3439306358381502) internal successors, (465), 356 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 465 transitions. [2021-11-20 05:50:25,899 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 465 transitions. Word has length 64 [2021-11-20 05:50:25,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:25,900 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 465 transitions. [2021-11-20 05:50:25,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 465 transitions. [2021-11-20 05:50:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 05:50:25,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:25,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:25,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:50:25,902 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1796013608, now seen corresponding path program 1 times [2021-11-20 05:50:25,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:25,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161246011] [2021-11-20 05:50:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:25,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:26,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:26,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161246011] [2021-11-20 05:50:26,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161246011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:26,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:26,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:26,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220480162] [2021-11-20 05:50:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:26,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:26,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:26,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:26,172 INFO L87 Difference]: Start difference. First operand 357 states and 465 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:27,028 INFO L93 Difference]: Finished difference Result 915 states and 1258 transitions. [2021-11-20 05:50:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2021-11-20 05:50:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:27,034 INFO L225 Difference]: With dead ends: 915 [2021-11-20 05:50:27,034 INFO L226 Difference]: Without dead ends: 795 [2021-11-20 05:50:27,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:27,036 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1665 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:27,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1665 Valid, 1079 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2021-11-20 05:50:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2021-11-20 05:50:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3410404624277457) internal successors, (464), 356 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 464 transitions. [2021-11-20 05:50:27,101 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 464 transitions. Word has length 64 [2021-11-20 05:50:27,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:27,102 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 464 transitions. [2021-11-20 05:50:27,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 464 transitions. [2021-11-20 05:50:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 05:50:27,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:27,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:27,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:50:27,104 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1577721816, now seen corresponding path program 1 times [2021-11-20 05:50:27,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:27,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853795808] [2021-11-20 05:50:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:27,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:27,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:27,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853795808] [2021-11-20 05:50:27,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853795808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:27,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:27,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:50:27,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120828463] [2021-11-20 05:50:27,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:27,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:50:27,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:27,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:50:27,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:50:27,227 INFO L87 Difference]: Start difference. First operand 357 states and 464 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:27,695 INFO L93 Difference]: Finished difference Result 724 states and 946 transitions. [2021-11-20 05:50:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:50:27,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2021-11-20 05:50:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:27,699 INFO L225 Difference]: With dead ends: 724 [2021-11-20 05:50:27,699 INFO L226 Difference]: Without dead ends: 531 [2021-11-20 05:50:27,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:50:27,700 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1129 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:27,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 484 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:27,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-20 05:50:27,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 357. [2021-11-20 05:50:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3381502890173411) internal successors, (463), 356 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 463 transitions. [2021-11-20 05:50:27,741 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 463 transitions. Word has length 64 [2021-11-20 05:50:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 463 transitions. [2021-11-20 05:50:27,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 463 transitions. [2021-11-20 05:50:27,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 05:50:27,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:27,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:27,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:50:27,744 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:27,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:27,744 INFO L85 PathProgramCache]: Analyzing trace with hash -295025225, now seen corresponding path program 1 times [2021-11-20 05:50:27,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:27,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421750300] [2021-11-20 05:50:27,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:27,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:27,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:27,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:27,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421750300] [2021-11-20 05:50:27,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421750300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:27,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:27,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:27,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624206463] [2021-11-20 05:50:27,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:27,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:27,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:27,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:27,880 INFO L87 Difference]: Start difference. First operand 357 states and 463 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:28,757 INFO L93 Difference]: Finished difference Result 883 states and 1207 transitions. [2021-11-20 05:50:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:28,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) Word has length 65 [2021-11-20 05:50:28,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:28,763 INFO L225 Difference]: With dead ends: 883 [2021-11-20 05:50:28,763 INFO L226 Difference]: Without dead ends: 774 [2021-11-20 05:50:28,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:50:28,765 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1908 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:28,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1908 Valid, 985 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:50:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-20 05:50:28,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2021-11-20 05:50:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3352601156069364) internal successors, (462), 356 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 462 transitions. [2021-11-20 05:50:28,811 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 462 transitions. Word has length 65 [2021-11-20 05:50:28,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:28,812 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 462 transitions. [2021-11-20 05:50:28,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 462 transitions. [2021-11-20 05:50:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:28,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:28,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:28,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:50:28,814 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:28,815 INFO L85 PathProgramCache]: Analyzing trace with hash -168692467, now seen corresponding path program 1 times [2021-11-20 05:50:28,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:28,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244752469] [2021-11-20 05:50:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:28,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:28,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:28,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244752469] [2021-11-20 05:50:28,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244752469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:28,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:28,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:28,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737319183] [2021-11-20 05:50:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:28,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:28,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:28,947 INFO L87 Difference]: Start difference. First operand 357 states and 462 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:29,849 INFO L93 Difference]: Finished difference Result 814 states and 1101 transitions. [2021-11-20 05:50:29,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:29,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:29,855 INFO L225 Difference]: With dead ends: 814 [2021-11-20 05:50:29,856 INFO L226 Difference]: Without dead ends: 795 [2021-11-20 05:50:29,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:29,858 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 1321 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:29,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 1277 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:29,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2021-11-20 05:50:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2021-11-20 05:50:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.329479768786127) internal successors, (460), 356 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 460 transitions. [2021-11-20 05:50:29,926 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 460 transitions. Word has length 66 [2021-11-20 05:50:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:29,927 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 460 transitions. [2021-11-20 05:50:29,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 460 transitions. [2021-11-20 05:50:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:29,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:29,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:29,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:50:29,929 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:29,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1424145869, now seen corresponding path program 1 times [2021-11-20 05:50:29,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:29,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464852430] [2021-11-20 05:50:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:29,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:30,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:30,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464852430] [2021-11-20 05:50:30,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464852430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:30,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:30,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:30,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452950260] [2021-11-20 05:50:30,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:30,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:30,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:30,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:30,130 INFO L87 Difference]: Start difference. First operand 357 states and 460 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:31,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:31,099 INFO L93 Difference]: Finished difference Result 780 states and 1048 transitions. [2021-11-20 05:50:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:31,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:31,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:31,105 INFO L225 Difference]: With dead ends: 780 [2021-11-20 05:50:31,105 INFO L226 Difference]: Without dead ends: 774 [2021-11-20 05:50:31,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:50:31,107 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 1809 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:31,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1809 Valid, 1061 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-20 05:50:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2021-11-20 05:50:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.323699421965318) internal successors, (458), 356 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 458 transitions. [2021-11-20 05:50:31,165 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 458 transitions. Word has length 66 [2021-11-20 05:50:31,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:31,166 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 458 transitions. [2021-11-20 05:50:31,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 458 transitions. [2021-11-20 05:50:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:31,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:31,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:31,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:50:31,168 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash -155488627, now seen corresponding path program 1 times [2021-11-20 05:50:31,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:31,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226548324] [2021-11-20 05:50:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:31,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:31,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:31,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226548324] [2021-11-20 05:50:31,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226548324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:31,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:31,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:31,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016853325] [2021-11-20 05:50:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:31,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:31,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:31,355 INFO L87 Difference]: Start difference. First operand 357 states and 458 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:31,946 INFO L93 Difference]: Finished difference Result 701 states and 948 transitions. [2021-11-20 05:50:31,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:50:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:31,950 INFO L225 Difference]: With dead ends: 701 [2021-11-20 05:50:31,950 INFO L226 Difference]: Without dead ends: 524 [2021-11-20 05:50:31,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:50:31,952 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 1346 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:31,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 909 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 05:50:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2021-11-20 05:50:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 357. [2021-11-20 05:50:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3179190751445087) internal successors, (456), 356 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 456 transitions. [2021-11-20 05:50:32,001 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 456 transitions. Word has length 66 [2021-11-20 05:50:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:32,001 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 456 transitions. [2021-11-20 05:50:32,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 456 transitions. [2021-11-20 05:50:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:32,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:32,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:32,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:50:32,004 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -131812051, now seen corresponding path program 1 times [2021-11-20 05:50:32,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:32,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717666563] [2021-11-20 05:50:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:32,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:32,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:32,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717666563] [2021-11-20 05:50:32,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717666563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:32,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:32,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:32,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644136055] [2021-11-20 05:50:32,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:32,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:32,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:32,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:32,168 INFO L87 Difference]: Start difference. First operand 357 states and 456 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:33,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:33,207 INFO L93 Difference]: Finished difference Result 886 states and 1203 transitions. [2021-11-20 05:50:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:33,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:33,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:33,213 INFO L225 Difference]: With dead ends: 886 [2021-11-20 05:50:33,213 INFO L226 Difference]: Without dead ends: 774 [2021-11-20 05:50:33,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:50:33,216 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 1785 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:33,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1785 Valid, 1072 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-20 05:50:33,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2021-11-20 05:50:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3150289017341041) internal successors, (455), 356 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 455 transitions. [2021-11-20 05:50:33,280 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 455 transitions. Word has length 66 [2021-11-20 05:50:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:33,280 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 455 transitions. [2021-11-20 05:50:33,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 455 transitions. [2021-11-20 05:50:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:33,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:33,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:33,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:50:33,283 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:33,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2058619373, now seen corresponding path program 1 times [2021-11-20 05:50:33,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:33,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535421267] [2021-11-20 05:50:33,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:33,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:33,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:33,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:33,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535421267] [2021-11-20 05:50:33,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535421267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:33,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:33,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:33,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329843789] [2021-11-20 05:50:33,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:33,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:33,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:33,455 INFO L87 Difference]: Start difference. First operand 357 states and 455 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:34,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:34,302 INFO L93 Difference]: Finished difference Result 920 states and 1252 transitions. [2021-11-20 05:50:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:34,308 INFO L225 Difference]: With dead ends: 920 [2021-11-20 05:50:34,308 INFO L226 Difference]: Without dead ends: 795 [2021-11-20 05:50:34,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:34,310 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1251 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:34,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 1428 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:50:34,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2021-11-20 05:50:34,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2021-11-20 05:50:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3121387283236994) internal successors, (454), 356 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 454 transitions. [2021-11-20 05:50:34,394 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 454 transitions. Word has length 66 [2021-11-20 05:50:34,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:34,395 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 454 transitions. [2021-11-20 05:50:34,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 454 transitions. [2021-11-20 05:50:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 05:50:34,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:34,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:34,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 05:50:34,397 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1833305997, now seen corresponding path program 1 times [2021-11-20 05:50:34,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:34,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720125130] [2021-11-20 05:50:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:34,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:34,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:34,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720125130] [2021-11-20 05:50:34,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720125130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:34,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:34,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:34,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483544150] [2021-11-20 05:50:34,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:34,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:34,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:34,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:34,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:34,524 INFO L87 Difference]: Start difference. First operand 357 states and 454 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:35,349 INFO L93 Difference]: Finished difference Result 780 states and 1042 transitions. [2021-11-20 05:50:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 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) Word has length 66 [2021-11-20 05:50:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:35,354 INFO L225 Difference]: With dead ends: 780 [2021-11-20 05:50:35,354 INFO L226 Difference]: Without dead ends: 774 [2021-11-20 05:50:35,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:35,356 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 1873 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:35,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1873 Valid, 1201 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:50:35,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-20 05:50:35,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2021-11-20 05:50:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3092485549132948) internal successors, (453), 356 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 453 transitions. [2021-11-20 05:50:35,414 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 453 transitions. Word has length 66 [2021-11-20 05:50:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:35,415 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 453 transitions. [2021-11-20 05:50:35,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 453 transitions. [2021-11-20 05:50:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 05:50:35,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:35,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:35,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 05:50:35,417 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 817551922, now seen corresponding path program 1 times [2021-11-20 05:50:35,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:35,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002934333] [2021-11-20 05:50:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:35,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:35,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:35,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002934333] [2021-11-20 05:50:35,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002934333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:35,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:35,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:50:35,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186922753] [2021-11-20 05:50:35,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:35,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:50:35,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:50:35,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:50:35,837 INFO L87 Difference]: Start difference. First operand 357 states and 453 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:37,238 INFO L93 Difference]: Finished difference Result 981 states and 1286 transitions. [2021-11-20 05:50:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:37,239 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) Word has length 67 [2021-11-20 05:50:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:37,246 INFO L225 Difference]: With dead ends: 981 [2021-11-20 05:50:37,246 INFO L226 Difference]: Without dead ends: 873 [2021-11-20 05:50:37,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-20 05:50:37,248 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1485 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:37,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 2516 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:37,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2021-11-20 05:50:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 347. [2021-11-20 05:50:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 336 states have (on average 1.3035714285714286) internal successors, (438), 346 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 438 transitions. [2021-11-20 05:50:37,330 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 438 transitions. Word has length 67 [2021-11-20 05:50:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:37,331 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 438 transitions. [2021-11-20 05:50:37,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 438 transitions. [2021-11-20 05:50:37,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 05:50:37,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:37,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:37,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 05:50:37,333 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 167509874, now seen corresponding path program 1 times [2021-11-20 05:50:37,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:37,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145737623] [2021-11-20 05:50:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:37,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:37,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:37,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145737623] [2021-11-20 05:50:37,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145737623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:37,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:37,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:50:37,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130821336] [2021-11-20 05:50:37,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:37,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:50:37,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:37,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:50:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:50:37,749 INFO L87 Difference]: Start difference. First operand 347 states and 438 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:39,596 INFO L93 Difference]: Finished difference Result 1607 states and 2219 transitions. [2021-11-20 05:50:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 05:50:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) Word has length 67 [2021-11-20 05:50:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:39,605 INFO L225 Difference]: With dead ends: 1607 [2021-11-20 05:50:39,605 INFO L226 Difference]: Without dead ends: 1500 [2021-11-20 05:50:39,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-20 05:50:39,607 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 2373 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:39,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2373 Valid, 3379 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:50:39,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-20 05:50:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 346. [2021-11-20 05:50:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 335 states have (on average 1.3014925373134327) internal successors, (436), 345 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 436 transitions. [2021-11-20 05:50:39,685 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 436 transitions. Word has length 67 [2021-11-20 05:50:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:39,686 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 436 transitions. [2021-11-20 05:50:39,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:39,686 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 436 transitions. [2021-11-20 05:50:39,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 05:50:39,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:39,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:39,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 05:50:39,688 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash 620991698, now seen corresponding path program 1 times [2021-11-20 05:50:39,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:39,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308144633] [2021-11-20 05:50:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:39,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:40,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:40,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308144633] [2021-11-20 05:50:40,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308144633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:40,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:40,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 05:50:40,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597158654] [2021-11-20 05:50:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:40,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:50:40,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:50:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:50:40,020 INFO L87 Difference]: Start difference. First operand 346 states and 436 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:40,976 INFO L93 Difference]: Finished difference Result 888 states and 1180 transitions. [2021-11-20 05:50:40,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:50:40,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 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) Word has length 67 [2021-11-20 05:50:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:40,980 INFO L225 Difference]: With dead ends: 888 [2021-11-20 05:50:40,980 INFO L226 Difference]: Without dead ends: 713 [2021-11-20 05:50:40,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:50:40,982 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 1404 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:40,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 1778 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-11-20 05:50:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 277. [2021-11-20 05:50:41,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 270 states have (on average 1.3111111111111111) internal successors, (354), 276 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 354 transitions. [2021-11-20 05:50:41,043 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 354 transitions. Word has length 67 [2021-11-20 05:50:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:41,044 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 354 transitions. [2021-11-20 05:50:41,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 354 transitions. [2021-11-20 05:50:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 05:50:41,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:41,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:41,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 05:50:41,046 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:41,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1968382194, now seen corresponding path program 1 times [2021-11-20 05:50:41,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:41,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713738419] [2021-11-20 05:50:41,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:41,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:41,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:41,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713738419] [2021-11-20 05:50:41,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713738419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:41,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:41,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-20 05:50:41,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916460169] [2021-11-20 05:50:41,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:41,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 05:50:41,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:41,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 05:50:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:50:41,590 INFO L87 Difference]: Start difference. First operand 277 states and 354 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:43,089 INFO L93 Difference]: Finished difference Result 724 states and 959 transitions. [2021-11-20 05:50:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 05:50:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 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 68 [2021-11-20 05:50:43,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:43,094 INFO L225 Difference]: With dead ends: 724 [2021-11-20 05:50:43,095 INFO L226 Difference]: Without dead ends: 614 [2021-11-20 05:50:43,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-11-20 05:50:43,097 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1652 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:43,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 1988 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:50:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-20 05:50:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 275. [2021-11-20 05:50:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 268 states have (on average 1.3059701492537314) internal successors, (350), 274 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 350 transitions. [2021-11-20 05:50:43,161 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 350 transitions. Word has length 68 [2021-11-20 05:50:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:43,161 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 350 transitions. [2021-11-20 05:50:43,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 350 transitions. [2021-11-20 05:50:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 05:50:43,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:43,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:43,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 05:50:43,163 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:43,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:43,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1424994738, now seen corresponding path program 1 times [2021-11-20 05:50:43,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:43,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631617657] [2021-11-20 05:50:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:43,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:43,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631617657] [2021-11-20 05:50:43,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631617657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:43,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:43,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:50:43,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761164672] [2021-11-20 05:50:43,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:43,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:50:43,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:50:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:50:43,531 INFO L87 Difference]: Start difference. First operand 275 states and 350 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:44,579 INFO L93 Difference]: Finished difference Result 727 states and 959 transitions. [2021-11-20 05:50:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 05:50:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 68 [2021-11-20 05:50:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:44,585 INFO L225 Difference]: With dead ends: 727 [2021-11-20 05:50:44,585 INFO L226 Difference]: Without dead ends: 723 [2021-11-20 05:50:44,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-20 05:50:44,587 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1152 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:44,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 1788 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-20 05:50:44,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 271. [2021-11-20 05:50:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 265 states have (on average 1.3056603773584905) internal successors, (346), 270 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2021-11-20 05:50:44,646 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 68 [2021-11-20 05:50:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:44,647 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2021-11-20 05:50:44,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2021-11-20 05:50:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 05:50:44,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:44,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:44,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 05:50:44,649 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1956272974, now seen corresponding path program 1 times [2021-11-20 05:50:44,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:44,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426291687] [2021-11-20 05:50:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:44,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:45,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:45,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426291687] [2021-11-20 05:50:45,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426291687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:45,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:45,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-20 05:50:45,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648166431] [2021-11-20 05:50:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:45,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 05:50:45,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 05:50:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:50:45,268 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:46,850 INFO L93 Difference]: Finished difference Result 305 states and 381 transitions. [2021-11-20 05:50:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 05:50:46,851 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 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 68 [2021-11-20 05:50:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:46,852 INFO L225 Difference]: With dead ends: 305 [2021-11-20 05:50:46,852 INFO L226 Difference]: Without dead ends: 298 [2021-11-20 05:50:46,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2021-11-20 05:50:46,854 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 408 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:46,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 2278 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:50:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-20 05:50:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 278. [2021-11-20 05:50:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 272 states have (on average 1.3051470588235294) internal successors, (355), 277 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:46,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 355 transitions. [2021-11-20 05:50:46,924 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 355 transitions. Word has length 68 [2021-11-20 05:50:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:46,925 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 355 transitions. [2021-11-20 05:50:46,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:46,925 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 355 transitions. [2021-11-20 05:50:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 05:50:46,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:46,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:46,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 05:50:46,927 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:46,927 INFO L85 PathProgramCache]: Analyzing trace with hash 859380364, now seen corresponding path program 1 times [2021-11-20 05:50:46,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:46,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578585154] [2021-11-20 05:50:46,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:46,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:47,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:47,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578585154] [2021-11-20 05:50:47,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578585154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:47,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:47,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 05:50:47,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869692001] [2021-11-20 05:50:47,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:47,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 05:50:47,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 05:50:47,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:50:47,221 INFO L87 Difference]: Start difference. First operand 278 states and 355 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:47,827 INFO L93 Difference]: Finished difference Result 455 states and 599 transitions. [2021-11-20 05:50:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:50:47,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) Word has length 69 [2021-11-20 05:50:47,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:47,829 INFO L225 Difference]: With dead ends: 455 [2021-11-20 05:50:47,829 INFO L226 Difference]: Without dead ends: 417 [2021-11-20 05:50:47,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:50:47,831 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 711 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:47,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 2011 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:47,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-11-20 05:50:47,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 240. [2021-11-20 05:50:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 236 states have (on average 1.3135593220338984) internal successors, (310), 239 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 310 transitions. [2021-11-20 05:50:47,906 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 310 transitions. Word has length 69 [2021-11-20 05:50:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:47,907 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 310 transitions. [2021-11-20 05:50:47,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:47,907 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 310 transitions. [2021-11-20 05:50:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 05:50:47,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:47,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:47,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 05:50:47,909 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1452889883, now seen corresponding path program 1 times [2021-11-20 05:50:47,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:47,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117175706] [2021-11-20 05:50:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:47,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:48,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:48,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117175706] [2021-11-20 05:50:48,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117175706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:48,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:48,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 05:50:48,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798155496] [2021-11-20 05:50:48,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:48,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 05:50:48,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 05:50:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:50:48,208 INFO L87 Difference]: Start difference. First operand 240 states and 310 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:48,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:48,986 INFO L93 Difference]: Finished difference Result 786 states and 1085 transitions. [2021-11-20 05:50:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:50:48,989 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) Word has length 69 [2021-11-20 05:50:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:48,993 INFO L225 Difference]: With dead ends: 786 [2021-11-20 05:50:48,993 INFO L226 Difference]: Without dead ends: 659 [2021-11-20 05:50:48,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:50:48,994 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 937 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:48,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 2265 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-11-20 05:50:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 219. [2021-11-20 05:50:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.304147465437788) internal successors, (283), 218 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 283 transitions. [2021-11-20 05:50:49,054 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 283 transitions. Word has length 69 [2021-11-20 05:50:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:49,054 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 283 transitions. [2021-11-20 05:50:49,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 283 transitions. [2021-11-20 05:50:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-20 05:50:49,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:49,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:49,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 05:50:49,056 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -957086542, now seen corresponding path program 1 times [2021-11-20 05:50:49,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:49,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314656304] [2021-11-20 05:50:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:49,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:49,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:49,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314656304] [2021-11-20 05:50:49,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314656304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:49,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:49,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:50:49,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205080635] [2021-11-20 05:50:49,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:49,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:50:49,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:49,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:50:49,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:49,172 INFO L87 Difference]: Start difference. First operand 219 states and 283 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:49,673 INFO L93 Difference]: Finished difference Result 519 states and 701 transitions. [2021-11-20 05:50:49,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:50:49,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2021-11-20 05:50:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:49,681 INFO L225 Difference]: With dead ends: 519 [2021-11-20 05:50:49,681 INFO L226 Difference]: Without dead ends: 379 [2021-11-20 05:50:49,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-11-20 05:50:49,682 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 614 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:49,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 627 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:50:49,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-11-20 05:50:49,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 219. [2021-11-20 05:50:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.294930875576037) internal successors, (281), 218 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 281 transitions. [2021-11-20 05:50:49,765 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 281 transitions. Word has length 70 [2021-11-20 05:50:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:49,765 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 281 transitions. [2021-11-20 05:50:49,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 281 transitions. [2021-11-20 05:50:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 05:50:49,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:49,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:49,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 05:50:49,767 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -918116841, now seen corresponding path program 1 times [2021-11-20 05:50:49,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:49,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600801662] [2021-11-20 05:50:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:49,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:50,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:50,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600801662] [2021-11-20 05:50:50,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600801662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:50,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:50,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-20 05:50:50,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573373947] [2021-11-20 05:50:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:50,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 05:50:50,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 05:50:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:50:50,463 INFO L87 Difference]: Start difference. First operand 219 states and 281 transitions. Second operand has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:52,794 INFO L93 Difference]: Finished difference Result 812 states and 1137 transitions. [2021-11-20 05:50:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 05:50:52,794 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 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 72 [2021-11-20 05:50:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:52,798 INFO L225 Difference]: With dead ends: 812 [2021-11-20 05:50:52,799 INFO L226 Difference]: Without dead ends: 806 [2021-11-20 05:50:52,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2021-11-20 05:50:52,801 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 842 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:52,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 3295 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:50:52,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-11-20 05:50:52,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 232. [2021-11-20 05:50:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 297 transitions. [2021-11-20 05:50:52,875 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 297 transitions. Word has length 72 [2021-11-20 05:50:52,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:52,876 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 297 transitions. [2021-11-20 05:50:52,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:52,876 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 297 transitions. [2021-11-20 05:50:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 05:50:52,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:52,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:52,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 05:50:52,878 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:52,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash 370177890, now seen corresponding path program 1 times [2021-11-20 05:50:52,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:52,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795752387] [2021-11-20 05:50:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:52,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:53,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:53,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795752387] [2021-11-20 05:50:53,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795752387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:53,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:53,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:50:53,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351951242] [2021-11-20 05:50:53,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:53,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:50:53,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:50:53,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:50:53,269 INFO L87 Difference]: Start difference. First operand 232 states and 297 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:54,516 INFO L93 Difference]: Finished difference Result 1064 states and 1499 transitions. [2021-11-20 05:50:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 05:50:54,516 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 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) Word has length 73 [2021-11-20 05:50:54,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:54,522 INFO L225 Difference]: With dead ends: 1064 [2021-11-20 05:50:54,522 INFO L226 Difference]: Without dead ends: 1058 [2021-11-20 05:50:54,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-20 05:50:54,524 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1171 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:54,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 2466 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:50:54,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2021-11-20 05:50:54,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 213. [2021-11-20 05:50:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.2924528301886793) internal successors, (274), 212 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:54,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions. [2021-11-20 05:50:54,600 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 274 transitions. Word has length 73 [2021-11-20 05:50:54,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:54,601 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 274 transitions. [2021-11-20 05:50:54,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 274 transitions. [2021-11-20 05:50:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 05:50:54,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:54,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:54,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 05:50:54,603 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:54,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:54,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1364481581, now seen corresponding path program 1 times [2021-11-20 05:50:54,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:54,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798385099] [2021-11-20 05:50:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:54,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:54,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:54,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798385099] [2021-11-20 05:50:54,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798385099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:54,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:54,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:54,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890182779] [2021-11-20 05:50:54,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:54,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:54,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:54,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:54,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:54,678 INFO L87 Difference]: Start difference. First operand 213 states and 274 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:55,137 INFO L93 Difference]: Finished difference Result 1061 states and 1538 transitions. [2021-11-20 05:50:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:50:55,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 96 [2021-11-20 05:50:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:55,142 INFO L225 Difference]: With dead ends: 1061 [2021-11-20 05:50:55,142 INFO L226 Difference]: Without dead ends: 955 [2021-11-20 05:50:55,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:50:55,143 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 906 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:55,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 955 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:50:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-20 05:50:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 317. [2021-11-20 05:50:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.3512658227848102) internal successors, (427), 316 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 427 transitions. [2021-11-20 05:50:55,272 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 427 transitions. Word has length 96 [2021-11-20 05:50:55,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:55,273 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 427 transitions. [2021-11-20 05:50:55,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 427 transitions. [2021-11-20 05:50:55,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:50:55,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:55,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:55,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 05:50:55,275 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1426852022, now seen corresponding path program 1 times [2021-11-20 05:50:55,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:55,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802021359] [2021-11-20 05:50:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:55,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:55,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:55,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802021359] [2021-11-20 05:50:55,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802021359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:55,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:55,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:55,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150329559] [2021-11-20 05:50:55,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:55,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:55,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:55,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:55,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:55,374 INFO L87 Difference]: Start difference. First operand 317 states and 427 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:55,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:55,890 INFO L93 Difference]: Finished difference Result 1263 states and 1825 transitions. [2021-11-20 05:50:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:50:55,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-20 05:50:55,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:55,894 INFO L225 Difference]: With dead ends: 1263 [2021-11-20 05:50:55,894 INFO L226 Difference]: Without dead ends: 1053 [2021-11-20 05:50:55,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:55,895 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 656 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:55,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 670 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2021-11-20 05:50:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 525. [2021-11-20 05:50:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.4026717557251909) internal successors, (735), 524 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 735 transitions. [2021-11-20 05:50:56,122 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 735 transitions. Word has length 98 [2021-11-20 05:50:56,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:56,122 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 735 transitions. [2021-11-20 05:50:56,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 735 transitions. [2021-11-20 05:50:56,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:50:56,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:56,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:56,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 05:50:56,125 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash 645902315, now seen corresponding path program 1 times [2021-11-20 05:50:56,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:56,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455952761] [2021-11-20 05:50:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:56,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:56,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:56,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455952761] [2021-11-20 05:50:56,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455952761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:56,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:56,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:56,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182153310] [2021-11-20 05:50:56,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:56,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:56,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:56,259 INFO L87 Difference]: Start difference. First operand 525 states and 735 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:56,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:56,537 INFO L93 Difference]: Finished difference Result 945 states and 1355 transitions. [2021-11-20 05:50:56,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:50:56,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-20 05:50:56,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:56,540 INFO L225 Difference]: With dead ends: 945 [2021-11-20 05:50:56,540 INFO L226 Difference]: Without dead ends: 527 [2021-11-20 05:50:56,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:50:56,541 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 369 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:56,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 387 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-11-20 05:50:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2021-11-20 05:50:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.3950381679389312) internal successors, (731), 524 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 731 transitions. [2021-11-20 05:50:56,743 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 731 transitions. Word has length 98 [2021-11-20 05:50:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:56,743 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 731 transitions. [2021-11-20 05:50:56,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 731 transitions. [2021-11-20 05:50:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:50:56,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:56,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:56,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 05:50:56,746 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash 579408803, now seen corresponding path program 1 times [2021-11-20 05:50:56,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:56,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985434997] [2021-11-20 05:50:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:56,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:56,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:56,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985434997] [2021-11-20 05:50:56,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985434997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:56,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:56,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:56,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842496081] [2021-11-20 05:50:56,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:56,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:56,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:56,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:56,792 INFO L87 Difference]: Start difference. First operand 525 states and 731 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:57,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:57,169 INFO L93 Difference]: Finished difference Result 1309 states and 1873 transitions. [2021-11-20 05:50:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:57,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-20 05:50:57,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:57,172 INFO L225 Difference]: With dead ends: 1309 [2021-11-20 05:50:57,173 INFO L226 Difference]: Without dead ends: 891 [2021-11-20 05:50:57,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:57,174 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 67 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:57,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 374 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-11-20 05:50:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 889. [2021-11-20 05:50:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.3975225225225225) internal successors, (1241), 888 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:57,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1241 transitions. [2021-11-20 05:50:57,664 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1241 transitions. Word has length 98 [2021-11-20 05:50:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:57,665 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1241 transitions. [2021-11-20 05:50:57,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1241 transitions. [2021-11-20 05:50:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:50:57,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:57,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:57,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 05:50:57,667 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:57,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:57,668 INFO L85 PathProgramCache]: Analyzing trace with hash 628880202, now seen corresponding path program 1 times [2021-11-20 05:50:57,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:57,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210321439] [2021-11-20 05:50:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:57,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:57,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:57,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210321439] [2021-11-20 05:50:57,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210321439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:57,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:57,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:57,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400572076] [2021-11-20 05:50:57,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:57,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:57,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:57,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:57,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:57,753 INFO L87 Difference]: Start difference. First operand 889 states and 1241 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:58,688 INFO L93 Difference]: Finished difference Result 2655 states and 3782 transitions. [2021-11-20 05:50:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:50:58,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-20 05:50:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:58,697 INFO L225 Difference]: With dead ends: 2655 [2021-11-20 05:50:58,697 INFO L226 Difference]: Without dead ends: 2263 [2021-11-20 05:50:58,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:50:58,700 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 623 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:58,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 684 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2021-11-20 05:50:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1475. [2021-11-20 05:50:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 1.4118046132971507) internal successors, (2081), 1474 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2081 transitions. [2021-11-20 05:50:59,422 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2081 transitions. Word has length 98 [2021-11-20 05:50:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:59,422 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2081 transitions. [2021-11-20 05:50:59,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:50:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2081 transitions. [2021-11-20 05:50:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:50:59,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:59,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:59,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 05:50:59,425 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:50:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1790937782, now seen corresponding path program 1 times [2021-11-20 05:50:59,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:59,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128755184] [2021-11-20 05:50:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:59,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:50:59,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:59,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128755184] [2021-11-20 05:50:59,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128755184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:59,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:59,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:59,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054801435] [2021-11-20 05:50:59,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:59,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:59,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:59,519 INFO L87 Difference]: Start difference. First operand 1475 states and 2081 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:00,608 INFO L93 Difference]: Finished difference Result 3045 states and 4342 transitions. [2021-11-20 05:51:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:51:00,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-20 05:51:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:00,619 INFO L225 Difference]: With dead ends: 3045 [2021-11-20 05:51:00,619 INFO L226 Difference]: Without dead ends: 2653 [2021-11-20 05:51:00,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:51:00,620 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 592 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:00,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 742 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2021-11-20 05:51:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 1865. [2021-11-20 05:51:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1864 states have (on average 1.4168454935622317) internal successors, (2641), 1864 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2641 transitions. [2021-11-20 05:51:01,490 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 2641 transitions. Word has length 98 [2021-11-20 05:51:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:01,491 INFO L470 AbstractCegarLoop]: Abstraction has 1865 states and 2641 transitions. [2021-11-20 05:51:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2641 transitions. [2021-11-20 05:51:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 05:51:01,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:01,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:01,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 05:51:01,494 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:01,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash -686393014, now seen corresponding path program 1 times [2021-11-20 05:51:01,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:01,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734637600] [2021-11-20 05:51:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:01,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:01,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:01,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734637600] [2021-11-20 05:51:01,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734637600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:01,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:01,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:51:01,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091227491] [2021-11-20 05:51:01,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:01,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:51:01,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:51:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:51:01,568 INFO L87 Difference]: Start difference. First operand 1865 states and 2641 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:02,843 INFO L93 Difference]: Finished difference Result 3435 states and 4902 transitions. [2021-11-20 05:51:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:51:02,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-20 05:51:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:02,858 INFO L225 Difference]: With dead ends: 3435 [2021-11-20 05:51:02,859 INFO L226 Difference]: Without dead ends: 3043 [2021-11-20 05:51:02,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:51:02,861 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 649 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:02,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 773 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:51:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2021-11-20 05:51:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2255. [2021-11-20 05:51:03,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2254 states have (on average 1.4201419698314108) internal successors, (3201), 2254 states have internal predecessors, (3201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3201 transitions. [2021-11-20 05:51:03,812 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3201 transitions. Word has length 98 [2021-11-20 05:51:03,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:03,813 INFO L470 AbstractCegarLoop]: Abstraction has 2255 states and 3201 transitions. [2021-11-20 05:51:03,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3201 transitions. [2021-11-20 05:51:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 05:51:03,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:03,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:03,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 05:51:03,815 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:03,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:03,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1897778033, now seen corresponding path program 1 times [2021-11-20 05:51:03,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:03,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321710849] [2021-11-20 05:51:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:03,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:03,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:03,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321710849] [2021-11-20 05:51:03,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321710849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:03,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:03,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:51:03,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613381992] [2021-11-20 05:51:03,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:03,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:51:03,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:51:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:03,867 INFO L87 Difference]: Start difference. First operand 2255 states and 3201 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:05,383 INFO L93 Difference]: Finished difference Result 5715 states and 8137 transitions. [2021-11-20 05:51:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:51:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2021-11-20 05:51:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:05,394 INFO L225 Difference]: With dead ends: 5715 [2021-11-20 05:51:05,394 INFO L226 Difference]: Without dead ends: 3567 [2021-11-20 05:51:05,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:05,399 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 78 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:05,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 345 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2021-11-20 05:51:06,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 3389. [2021-11-20 05:51:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3389 states, 3388 states have (on average 1.406434474616293) internal successors, (4765), 3388 states have internal predecessors, (4765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3389 states to 3389 states and 4765 transitions. [2021-11-20 05:51:06,857 INFO L78 Accepts]: Start accepts. Automaton has 3389 states and 4765 transitions. Word has length 99 [2021-11-20 05:51:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:06,857 INFO L470 AbstractCegarLoop]: Abstraction has 3389 states and 4765 transitions. [2021-11-20 05:51:06,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3389 states and 4765 transitions. [2021-11-20 05:51:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 05:51:06,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:06,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:06,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 05:51:06,860 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:06,860 INFO L85 PathProgramCache]: Analyzing trace with hash 642959826, now seen corresponding path program 1 times [2021-11-20 05:51:06,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:06,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567753376] [2021-11-20 05:51:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:06,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:06,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567753376] [2021-11-20 05:51:06,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567753376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:06,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:06,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:51:06,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265615460] [2021-11-20 05:51:06,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:06,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:51:06,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:06,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:51:06,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:06,914 INFO L87 Difference]: Start difference. First operand 3389 states and 4765 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:09,758 INFO L93 Difference]: Finished difference Result 9689 states and 13601 transitions. [2021-11-20 05:51:09,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:51:09,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2021-11-20 05:51:09,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:09,768 INFO L225 Difference]: With dead ends: 9689 [2021-11-20 05:51:09,768 INFO L226 Difference]: Without dead ends: 6407 [2021-11-20 05:51:09,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:09,772 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 71 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:09,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6407 states. [2021-11-20 05:51:12,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 6141. [2021-11-20 05:51:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6141 states, 6140 states have (on average 1.3933224755700326) internal successors, (8555), 6140 states have internal predecessors, (8555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 8555 transitions. [2021-11-20 05:51:12,244 INFO L78 Accepts]: Start accepts. Automaton has 6141 states and 8555 transitions. Word has length 100 [2021-11-20 05:51:12,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:12,245 INFO L470 AbstractCegarLoop]: Abstraction has 6141 states and 8555 transitions. [2021-11-20 05:51:12,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6141 states and 8555 transitions. [2021-11-20 05:51:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 05:51:12,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:12,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:12,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 05:51:12,247 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash -563977445, now seen corresponding path program 1 times [2021-11-20 05:51:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903797696] [2021-11-20 05:51:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:12,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:12,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903797696] [2021-11-20 05:51:12,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903797696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:12,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:12,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:51:12,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518310123] [2021-11-20 05:51:12,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:12,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:51:12,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:12,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:51:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:12,300 INFO L87 Difference]: Start difference. First operand 6141 states and 8555 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:17,295 INFO L93 Difference]: Finished difference Result 17681 states and 24509 transitions. [2021-11-20 05:51:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:51:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-20 05:51:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:17,323 INFO L225 Difference]: With dead ends: 17681 [2021-11-20 05:51:17,323 INFO L226 Difference]: Without dead ends: 11647 [2021-11-20 05:51:17,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:17,332 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 64 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:17,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2021-11-20 05:51:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11117. [2021-11-20 05:51:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11117 states, 11116 states have (on average 1.3743252968693775) internal successors, (15277), 11116 states have internal predecessors, (15277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11117 states to 11117 states and 15277 transitions. [2021-11-20 05:51:22,324 INFO L78 Accepts]: Start accepts. Automaton has 11117 states and 15277 transitions. Word has length 101 [2021-11-20 05:51:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:22,325 INFO L470 AbstractCegarLoop]: Abstraction has 11117 states and 15277 transitions. [2021-11-20 05:51:22,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 11117 states and 15277 transitions. [2021-11-20 05:51:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 05:51:22,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:22,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:22,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 05:51:22,327 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:22,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash 573353758, now seen corresponding path program 1 times [2021-11-20 05:51:22,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:22,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625084967] [2021-11-20 05:51:22,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:22,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:22,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:22,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625084967] [2021-11-20 05:51:22,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625084967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:22,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:22,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:51:22,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121337634] [2021-11-20 05:51:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:22,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:51:22,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:51:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:22,384 INFO L87 Difference]: Start difference. First operand 11117 states and 15277 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:31,663 INFO L93 Difference]: Finished difference Result 32081 states and 43751 transitions. [2021-11-20 05:51:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:51:31,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2021-11-20 05:51:31,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:31,710 INFO L225 Difference]: With dead ends: 32081 [2021-11-20 05:51:31,710 INFO L226 Difference]: Without dead ends: 21071 [2021-11-20 05:51:31,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:31,724 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 54 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:31,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 345 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21071 states. [2021-11-20 05:51:40,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21071 to 20013. [2021-11-20 05:51:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20013 states, 20012 states have (on average 1.349440335798521) internal successors, (27005), 20012 states have internal predecessors, (27005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:40,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20013 states to 20013 states and 27005 transitions. [2021-11-20 05:51:40,696 INFO L78 Accepts]: Start accepts. Automaton has 20013 states and 27005 transitions. Word has length 102 [2021-11-20 05:51:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:40,697 INFO L470 AbstractCegarLoop]: Abstraction has 20013 states and 27005 transitions. [2021-11-20 05:51:40,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:40,697 INFO L276 IsEmpty]: Start isEmpty. Operand 20013 states and 27005 transitions. [2021-11-20 05:51:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 05:51:40,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:40,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:40,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 05:51:40,698 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:51:40,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1488377255, now seen corresponding path program 1 times [2021-11-20 05:51:40,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:40,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820784318] [2021-11-20 05:51:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:40,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:40,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:40,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820784318] [2021-11-20 05:51:40,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820784318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:40,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:40,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:51:40,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872588336] [2021-11-20 05:51:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:40,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:51:40,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:51:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:51:40,785 INFO L87 Difference]: Start difference. First operand 20013 states and 27005 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:55,812 INFO L93 Difference]: Finished difference Result 31023 states and 41659 transitions. [2021-11-20 05:51:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:51:55,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 103 [2021-11-20 05:51:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:55,876 INFO L225 Difference]: With dead ends: 31023 [2021-11-20 05:51:55,876 INFO L226 Difference]: Without dead ends: 31021 [2021-11-20 05:51:55,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:51:55,885 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 260 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:55,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 822 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:51:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31021 states. [2021-11-20 05:52:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31021 to 20493. [2021-11-20 05:52:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20493 states, 20492 states have (on average 1.3318856138981066) internal successors, (27293), 20492 states have internal predecessors, (27293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:52:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20493 states to 20493 states and 27293 transitions. [2021-11-20 05:52:05,972 INFO L78 Accepts]: Start accepts. Automaton has 20493 states and 27293 transitions. Word has length 103 [2021-11-20 05:52:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:05,972 INFO L470 AbstractCegarLoop]: Abstraction has 20493 states and 27293 transitions. [2021-11-20 05:52:05,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:52:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 20493 states and 27293 transitions. [2021-11-20 05:52:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 05:52:05,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:05,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:05,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 05:52:05,973 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:52:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash -108390554, now seen corresponding path program 1 times [2021-11-20 05:52:05,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:05,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8254771] [2021-11-20 05:52:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:05,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:52:06,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8254771] [2021-11-20 05:52:06,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8254771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:06,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:06,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:52:06,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833299836] [2021-11-20 05:52:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:06,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:52:06,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:52:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:06,024 INFO L87 Difference]: Start difference. First operand 20493 states and 27293 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:52:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:15,408 INFO L93 Difference]: Finished difference Result 41521 states and 55335 transitions. [2021-11-20 05:52:15,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:52:15,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-11-20 05:52:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:15,434 INFO L225 Difference]: With dead ends: 41521 [2021-11-20 05:52:15,435 INFO L226 Difference]: Without dead ends: 21135 [2021-11-20 05:52:15,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:15,451 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 86 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:15,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 289 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:52:15,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21135 states. [2021-11-20 05:52:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21135 to 21133. [2021-11-20 05:52:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21133 states, 21132 states have (on average 1.3150198750709825) internal successors, (27789), 21132 states have internal predecessors, (27789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:52:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21133 states to 21133 states and 27789 transitions. [2021-11-20 05:52:24,935 INFO L78 Accepts]: Start accepts. Automaton has 21133 states and 27789 transitions. Word has length 103 [2021-11-20 05:52:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 21133 states and 27789 transitions. [2021-11-20 05:52:24,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:52:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 21133 states and 27789 transitions. [2021-11-20 05:52:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 05:52:24,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:24,942 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:24,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 05:52:24,942 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-20 05:52:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1221771837, now seen corresponding path program 1 times [2021-11-20 05:52:24,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:24,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65867831] [2021-11-20 05:52:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:24,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:52:25,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65867831] [2021-11-20 05:52:25,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65867831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:52:25,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471674095] [2021-11-20 05:52:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:25,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:25,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:25,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d62ce57-4f76-4151-a679-200e4e1f1727/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:52:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:25,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 05:52:25,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:52:26,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:52:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:52:29,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471674095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:52:29,301 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:52:29,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2021-11-20 05:52:29,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862119725] [2021-11-20 05:52:29,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:52:29,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-20 05:52:29,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:29,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-20 05:52:29,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=767, Unknown=0, NotChecked=0, Total=870 [2021-11-20 05:52:29,304 INFO L87 Difference]: Start difference. First operand 21133 states and 27789 transitions. Second operand has 30 states, 30 states have (on average 11.733333333333333) internal successors, (352), 29 states have internal predecessors, (352), 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)