./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da0a9170cb1355df936e020ec31cd269723d3c83f610103689e93f9c7ac8eb3a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:09:11,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:09:11,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:09:11,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:09:11,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:09:11,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:09:11,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:09:11,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:09:11,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:09:11,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:09:11,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:09:11,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:09:11,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:09:11,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:09:11,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:09:11,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:09:11,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:09:11,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:09:11,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:09:11,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:09:11,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:09:11,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:09:11,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:09:11,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:09:11,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:09:11,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:09:11,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:09:11,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:09:11,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:09:11,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:09:11,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:09:11,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:09:11,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:09:11,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:09:11,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:09:11,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:09:11,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:09:11,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:09:11,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:09:11,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:09:11,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:09:11,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:09:11,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:09:11,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:09:11,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:09:11,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:09:11,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:09:11,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:09:11,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:09:11,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:09:11,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:09:11,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:09:11,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:09:11,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:09:11,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:09:11,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:09:11,761 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:09:11,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:09:11,761 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:09:11,761 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da0a9170cb1355df936e020ec31cd269723d3c83f610103689e93f9c7ac8eb3a [2022-12-13 17:09:11,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:09:11,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:09:11,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:09:11,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:09:11,963 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:09:11,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 17:09:14,562 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:09:14,749 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:09:14,749 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 17:09:14,758 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/data/2106ef07c/8590b9b0a2b6452ebb8fe7059479776a/FLAGda9604ad3 [2022-12-13 17:09:14,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/data/2106ef07c/8590b9b0a2b6452ebb8fe7059479776a [2022-12-13 17:09:14,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:09:14,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:09:14,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:09:14,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:09:14,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:09:14,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:09:14" (1/1) ... [2022-12-13 17:09:14,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf0660f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:14, skipping insertion in model container [2022-12-13 17:09:14,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:09:14" (1/1) ... [2022-12-13 17:09:14,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:09:14,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:09:15,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14146,14159] [2022-12-13 17:09:15,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14793,14806] [2022-12-13 17:09:15,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16069,16082] [2022-12-13 17:09:15,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17045,17058] [2022-12-13 17:09:15,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25516,25529] [2022-12-13 17:09:15,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:09:15,148 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:09:15,213 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14146,14159] [2022-12-13 17:09:15,218 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14793,14806] [2022-12-13 17:09:15,226 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16069,16082] [2022-12-13 17:09:15,234 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17045,17058] [2022-12-13 17:09:15,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25516,25529] [2022-12-13 17:09:15,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:09:15,313 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:09:15,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15 WrapperNode [2022-12-13 17:09:15,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:09:15,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:09:15,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:09:15,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:09:15,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,380 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1565 [2022-12-13 17:09:15,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:09:15,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:09:15,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:09:15,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:09:15,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:09:15,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:09:15,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:09:15,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:09:15,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (1/1) ... [2022-12-13 17:09:15,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:09:15,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:09:15,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:09:15,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0522a55c-889d-4191-92e1-1b17be2ed6f7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:09:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:09:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:09:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:09:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:09:15,608 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:09:15,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:09:16,371 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:09:16,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:09:16,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:09:16,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:09:16 BoogieIcfgContainer [2022-12-13 17:09:16,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:09:16,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:09:16,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:09:16,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:09:16,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:09:14" (1/3) ... [2022-12-13 17:09:16,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329cfc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:09:16, skipping insertion in model container [2022-12-13 17:09:16,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:09:15" (2/3) ... [2022-12-13 17:09:16,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329cfc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:09:16, skipping insertion in model container [2022-12-13 17:09:16,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:09:16" (3/3) ... [2022-12-13 17:09:16,394 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 17:09:16,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:09:16,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-13 17:09:16,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:09:16,472 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4659ded, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:09:16,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 17:09:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 394 states, 382 states have (on average 1.824607329842932) internal successors, (697), 393 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 17:09:16,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:16,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:16,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:16,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:16,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1860790591, now seen corresponding path program 1 times [2022-12-13 17:09:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:16,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461773467] [2022-12-13 17:09:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:16,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461773467] [2022-12-13 17:09:16,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461773467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:16,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:16,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:16,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494387561] [2022-12-13 17:09:16,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:16,974 INFO L87 Difference]: Start difference. First operand has 394 states, 382 states have (on average 1.824607329842932) internal successors, (697), 393 states have internal predecessors, (697), 0 states have call successors, (0), 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 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:17,188 INFO L93 Difference]: Finished difference Result 735 states and 1276 transitions. [2022-12-13 17:09:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-12-13 17:09:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:17,204 INFO L225 Difference]: With dead ends: 735 [2022-12-13 17:09:17,204 INFO L226 Difference]: Without dead ends: 587 [2022-12-13 17:09:17,208 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:17,211 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 424 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:17,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1246 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:09:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-12-13 17:09:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2022-12-13 17:09:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 580 states have (on average 1.456896551724138) internal successors, (845), 584 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 845 transitions. [2022-12-13 17:09:17,284 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 845 transitions. Word has length 141 [2022-12-13 17:09:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:17,291 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 845 transitions. [2022-12-13 17:09:17,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 845 transitions. [2022-12-13 17:09:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 17:09:17,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:17,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:17,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:09:17,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:17,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1860359615, now seen corresponding path program 1 times [2022-12-13 17:09:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:17,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516843655] [2022-12-13 17:09:17,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:17,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:17,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:17,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516843655] [2022-12-13 17:09:17,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516843655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:17,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:17,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:17,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520045586] [2022-12-13 17:09:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:17,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:17,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:17,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:17,669 INFO L87 Difference]: Start difference. First operand 585 states and 845 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:17,787 INFO L93 Difference]: Finished difference Result 1713 states and 2466 transitions. [2022-12-13 17:09:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-12-13 17:09:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:17,790 INFO L225 Difference]: With dead ends: 1713 [2022-12-13 17:09:17,791 INFO L226 Difference]: Without dead ends: 1137 [2022-12-13 17:09:17,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:17,793 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1083 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:17,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1445 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-12-13 17:09:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1099. [2022-12-13 17:09:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1094 states have (on average 1.4442413162705667) internal successors, (1580), 1098 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1580 transitions. [2022-12-13 17:09:17,849 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1580 transitions. Word has length 141 [2022-12-13 17:09:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:17,850 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1580 transitions. [2022-12-13 17:09:17,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:17,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1580 transitions. [2022-12-13 17:09:17,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 17:09:17,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:17,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:17,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:09:17,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:17,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1839649003, now seen corresponding path program 1 times [2022-12-13 17:09:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:17,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325383921] [2022-12-13 17:09:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:17,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325383921] [2022-12-13 17:09:17,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325383921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:17,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:17,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:17,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402617835] [2022-12-13 17:09:17,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:17,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:17,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:17,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:17,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:17,906 INFO L87 Difference]: Start difference. First operand 1099 states and 1580 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:18,042 INFO L93 Difference]: Finished difference Result 3259 states and 4678 transitions. [2022-12-13 17:09:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:18,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-12-13 17:09:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:18,050 INFO L225 Difference]: With dead ends: 3259 [2022-12-13 17:09:18,051 INFO L226 Difference]: Without dead ends: 2188 [2022-12-13 17:09:18,052 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:18,053 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 532 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:18,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1606 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:18,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-12-13 17:09:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1101. [2022-12-13 17:09:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 1096 states have (on average 1.4434306569343065) internal successors, (1582), 1100 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1582 transitions. [2022-12-13 17:09:18,128 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1582 transitions. Word has length 142 [2022-12-13 17:09:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:18,128 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1582 transitions. [2022-12-13 17:09:18,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1582 transitions. [2022-12-13 17:09:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 17:09:18,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:18,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:18,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:09:18,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:18,131 INFO L85 PathProgramCache]: Analyzing trace with hash 734467803, now seen corresponding path program 1 times [2022-12-13 17:09:18,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:18,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245684643] [2022-12-13 17:09:18,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:18,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245684643] [2022-12-13 17:09:18,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245684643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:18,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:18,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660186765] [2022-12-13 17:09:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:18,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:18,196 INFO L87 Difference]: Start difference. First operand 1101 states and 1582 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:18,384 INFO L93 Difference]: Finished difference Result 3063 states and 4405 transitions. [2022-12-13 17:09:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:18,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-12-13 17:09:18,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:18,390 INFO L225 Difference]: With dead ends: 3063 [2022-12-13 17:09:18,390 INFO L226 Difference]: Without dead ends: 2138 [2022-12-13 17:09:18,391 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:18,392 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 470 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:18,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1496 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-12-13 17:09:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2100. [2022-12-13 17:09:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2095 states have (on average 1.430071599045346) internal successors, (2996), 2099 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2996 transitions. [2022-12-13 17:09:18,548 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2996 transitions. Word has length 143 [2022-12-13 17:09:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:18,548 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2996 transitions. [2022-12-13 17:09:18,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2996 transitions. [2022-12-13 17:09:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 17:09:18,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:18,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:18,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:09:18,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:18,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1947336930, now seen corresponding path program 1 times [2022-12-13 17:09:18,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:18,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911268613] [2022-12-13 17:09:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:18,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:18,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:18,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911268613] [2022-12-13 17:09:18,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911268613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:18,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:18,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:09:18,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802335565] [2022-12-13 17:09:18,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:09:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:18,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:09:18,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:18,757 INFO L87 Difference]: Start difference. First operand 2100 states and 2996 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:19,046 INFO L93 Difference]: Finished difference Result 5978 states and 8505 transitions. [2022-12-13 17:09:19,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:19,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-12-13 17:09:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:19,055 INFO L225 Difference]: With dead ends: 5978 [2022-12-13 17:09:19,055 INFO L226 Difference]: Without dead ends: 3892 [2022-12-13 17:09:19,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:19,058 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 1009 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:19,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1745 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:09:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2022-12-13 17:09:19,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3862. [2022-12-13 17:09:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3857 states have (on average 1.409385532797511) internal successors, (5436), 3861 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:19,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5436 transitions. [2022-12-13 17:09:19,290 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5436 transitions. Word has length 143 [2022-12-13 17:09:19,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:19,290 INFO L495 AbstractCegarLoop]: Abstraction has 3862 states and 5436 transitions. [2022-12-13 17:09:19,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:19,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5436 transitions. [2022-12-13 17:09:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 17:09:19,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:19,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:19,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:09:19,294 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:19,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1237819550, now seen corresponding path program 1 times [2022-12-13 17:09:19,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:19,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289081591] [2022-12-13 17:09:19,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:19,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:19,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:19,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289081591] [2022-12-13 17:09:19,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289081591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:19,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:19,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205054229] [2022-12-13 17:09:19,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:19,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:19,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:19,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:19,564 INFO L87 Difference]: Start difference. First operand 3862 states and 5436 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:20,019 INFO L93 Difference]: Finished difference Result 11297 states and 15847 transitions. [2022-12-13 17:09:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-12-13 17:09:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:20,036 INFO L225 Difference]: With dead ends: 11297 [2022-12-13 17:09:20,036 INFO L226 Difference]: Without dead ends: 7491 [2022-12-13 17:09:20,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:20,041 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1069 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:20,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1436 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:20,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2022-12-13 17:09:20,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7447. [2022-12-13 17:09:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7447 states, 7442 states have (on average 1.3926363880677237) internal successors, (10364), 7446 states have internal predecessors, (10364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7447 states to 7447 states and 10364 transitions. [2022-12-13 17:09:20,554 INFO L78 Accepts]: Start accepts. Automaton has 7447 states and 10364 transitions. Word has length 143 [2022-12-13 17:09:20,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:20,554 INFO L495 AbstractCegarLoop]: Abstraction has 7447 states and 10364 transitions. [2022-12-13 17:09:20,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:20,554 INFO L276 IsEmpty]: Start isEmpty. Operand 7447 states and 10364 transitions. [2022-12-13 17:09:20,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 17:09:20,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:20,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:20,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:09:20,560 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:20,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:20,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1470261354, now seen corresponding path program 1 times [2022-12-13 17:09:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:20,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558356063] [2022-12-13 17:09:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:20,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:20,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558356063] [2022-12-13 17:09:20,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558356063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:20,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:20,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:20,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967261752] [2022-12-13 17:09:20,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:20,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:20,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:20,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:20,608 INFO L87 Difference]: Start difference. First operand 7447 states and 10364 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:21,500 INFO L93 Difference]: Finished difference Result 22189 states and 30859 transitions. [2022-12-13 17:09:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:21,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-12-13 17:09:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:21,541 INFO L225 Difference]: With dead ends: 22189 [2022-12-13 17:09:21,541 INFO L226 Difference]: Without dead ends: 14833 [2022-12-13 17:09:21,551 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:21,552 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 518 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:21,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1592 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14833 states. [2022-12-13 17:09:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14833 to 7457. [2022-12-13 17:09:22,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7457 states, 7452 states have (on average 1.392109500805153) internal successors, (10374), 7456 states have internal predecessors, (10374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7457 states to 7457 states and 10374 transitions. [2022-12-13 17:09:22,071 INFO L78 Accepts]: Start accepts. Automaton has 7457 states and 10374 transitions. Word has length 144 [2022-12-13 17:09:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:22,071 INFO L495 AbstractCegarLoop]: Abstraction has 7457 states and 10374 transitions. [2022-12-13 17:09:22,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7457 states and 10374 transitions. [2022-12-13 17:09:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 17:09:22,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:22,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:22,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:09:22,077 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -671861994, now seen corresponding path program 1 times [2022-12-13 17:09:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:22,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663972069] [2022-12-13 17:09:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:22,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:22,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:22,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663972069] [2022-12-13 17:09:22,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663972069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:22,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:22,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:22,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115439070] [2022-12-13 17:09:22,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:22,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:22,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:22,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:22,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:22,138 INFO L87 Difference]: Start difference. First operand 7457 states and 10374 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:23,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:23,132 INFO L93 Difference]: Finished difference Result 21085 states and 29361 transitions. [2022-12-13 17:09:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:23,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-12-13 17:09:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:23,150 INFO L225 Difference]: With dead ends: 21085 [2022-12-13 17:09:23,151 INFO L226 Difference]: Without dead ends: 14469 [2022-12-13 17:09:23,156 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:23,156 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 463 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:23,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1517 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14469 states. [2022-12-13 17:09:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14469 to 14425. [2022-12-13 17:09:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14425 states, 14420 states have (on average 1.3759361997226074) internal successors, (19841), 14424 states have internal predecessors, (19841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14425 states to 14425 states and 19841 transitions. [2022-12-13 17:09:24,025 INFO L78 Accepts]: Start accepts. Automaton has 14425 states and 19841 transitions. Word has length 145 [2022-12-13 17:09:24,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:24,025 INFO L495 AbstractCegarLoop]: Abstraction has 14425 states and 19841 transitions. [2022-12-13 17:09:24,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:24,026 INFO L276 IsEmpty]: Start isEmpty. Operand 14425 states and 19841 transitions. [2022-12-13 17:09:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 17:09:24,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:24,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:24,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:09:24,036 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:24,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:24,036 INFO L85 PathProgramCache]: Analyzing trace with hash -720915239, now seen corresponding path program 1 times [2022-12-13 17:09:24,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:24,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156448581] [2022-12-13 17:09:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:24,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:24,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156448581] [2022-12-13 17:09:24,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156448581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:24,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:24,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:09:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784316200] [2022-12-13 17:09:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:24,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:09:24,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:09:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:24,206 INFO L87 Difference]: Start difference. First operand 14425 states and 19841 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:26,008 INFO L93 Difference]: Finished difference Result 38658 states and 52972 transitions. [2022-12-13 17:09:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-12-13 17:09:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:26,034 INFO L225 Difference]: With dead ends: 38658 [2022-12-13 17:09:26,034 INFO L226 Difference]: Without dead ends: 24311 [2022-12-13 17:09:26,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:26,043 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 1571 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:26,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 1400 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:09:26,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24311 states. [2022-12-13 17:09:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24311 to 24285. [2022-12-13 17:09:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24285 states, 24280 states have (on average 1.348970345963756) internal successors, (32753), 24284 states have internal predecessors, (32753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24285 states to 24285 states and 32753 transitions. [2022-12-13 17:09:27,790 INFO L78 Accepts]: Start accepts. Automaton has 24285 states and 32753 transitions. Word has length 145 [2022-12-13 17:09:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:27,791 INFO L495 AbstractCegarLoop]: Abstraction has 24285 states and 32753 transitions. [2022-12-13 17:09:27,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 24285 states and 32753 transitions. [2022-12-13 17:09:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 17:09:27,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:27,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:27,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:09:27,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 909534973, now seen corresponding path program 1 times [2022-12-13 17:09:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:27,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709856021] [2022-12-13 17:09:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:28,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:28,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709856021] [2022-12-13 17:09:28,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709856021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:28,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:28,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078492317] [2022-12-13 17:09:28,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:28,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:28,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:28,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:28,046 INFO L87 Difference]: Start difference. First operand 24285 states and 32753 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:29,781 INFO L93 Difference]: Finished difference Result 49101 states and 66073 transitions. [2022-12-13 17:09:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-12-13 17:09:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:29,805 INFO L225 Difference]: With dead ends: 49101 [2022-12-13 17:09:29,805 INFO L226 Difference]: Without dead ends: 25210 [2022-12-13 17:09:29,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:29,819 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1058 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:29,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 1420 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:09:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25210 states. [2022-12-13 17:09:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25210 to 24751. [2022-12-13 17:09:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24751 states, 24746 states have (on average 1.3442980683746868) internal successors, (33266), 24750 states have internal predecessors, (33266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24751 states to 24751 states and 33266 transitions. [2022-12-13 17:09:31,519 INFO L78 Accepts]: Start accepts. Automaton has 24751 states and 33266 transitions. Word has length 145 [2022-12-13 17:09:31,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:31,520 INFO L495 AbstractCegarLoop]: Abstraction has 24751 states and 33266 transitions. [2022-12-13 17:09:31,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 24751 states and 33266 transitions. [2022-12-13 17:09:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-13 17:09:31,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:31,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:31,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:09:31,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -497015959, now seen corresponding path program 1 times [2022-12-13 17:09:31,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:31,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646593672] [2022-12-13 17:09:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:31,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:31,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646593672] [2022-12-13 17:09:31,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646593672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:31,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:31,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:31,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151710480] [2022-12-13 17:09:31,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:31,596 INFO L87 Difference]: Start difference. First operand 24751 states and 33266 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:35,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:35,215 INFO L93 Difference]: Finished difference Result 72297 states and 97402 transitions. [2022-12-13 17:09:35,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:35,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-12-13 17:09:35,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:35,265 INFO L225 Difference]: With dead ends: 72297 [2022-12-13 17:09:35,265 INFO L226 Difference]: Without dead ends: 49088 [2022-12-13 17:09:35,284 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:35,284 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 504 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:35,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49088 states. [2022-12-13 17:09:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49088 to 24791. [2022-12-13 17:09:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24791 states, 24786 states have (on average 1.3437424352457032) internal successors, (33306), 24790 states have internal predecessors, (33306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24791 states to 24791 states and 33306 transitions. [2022-12-13 17:09:37,426 INFO L78 Accepts]: Start accepts. Automaton has 24791 states and 33306 transitions. Word has length 146 [2022-12-13 17:09:37,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:37,426 INFO L495 AbstractCegarLoop]: Abstraction has 24791 states and 33306 transitions. [2022-12-13 17:09:37,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 24791 states and 33306 transitions. [2022-12-13 17:09:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:09:37,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:37,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:37,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:09:37,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1442584356, now seen corresponding path program 1 times [2022-12-13 17:09:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848446847] [2022-12-13 17:09:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:37,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:37,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848446847] [2022-12-13 17:09:37,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848446847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:37,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:37,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031910327] [2022-12-13 17:09:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:37,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:37,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:37,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:37,644 INFO L87 Difference]: Start difference. First operand 24791 states and 33306 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:39,185 INFO L93 Difference]: Finished difference Result 40220 states and 54113 transitions. [2022-12-13 17:09:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-12-13 17:09:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:39,200 INFO L225 Difference]: With dead ends: 40220 [2022-12-13 17:09:39,200 INFO L226 Difference]: Without dead ends: 16412 [2022-12-13 17:09:39,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:39,215 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 65 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:39,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1661 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:39,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16412 states. [2022-12-13 17:09:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16412 to 16412. [2022-12-13 17:09:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16407 states have (on average 1.3392454440177972) internal successors, (21973), 16411 states have internal predecessors, (21973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 21973 transitions. [2022-12-13 17:09:40,564 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 21973 transitions. Word has length 147 [2022-12-13 17:09:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:40,564 INFO L495 AbstractCegarLoop]: Abstraction has 16412 states and 21973 transitions. [2022-12-13 17:09:40,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 21973 transitions. [2022-12-13 17:09:40,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 17:09:40,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:40,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:40,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:09:40,572 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:40,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1557306087, now seen corresponding path program 1 times [2022-12-13 17:09:40,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:40,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441965344] [2022-12-13 17:09:40,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:40,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:40,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441965344] [2022-12-13 17:09:40,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441965344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:40,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:40,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:40,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975595457] [2022-12-13 17:09:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:40,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:40,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:40,775 INFO L87 Difference]: Start difference. First operand 16412 states and 21973 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:43,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:43,262 INFO L93 Difference]: Finished difference Result 32397 states and 44661 transitions. [2022-12-13 17:09:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:43,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-12-13 17:09:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:43,285 INFO L225 Difference]: With dead ends: 32397 [2022-12-13 17:09:43,286 INFO L226 Difference]: Without dead ends: 26550 [2022-12-13 17:09:43,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:43,292 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 621 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:43,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 981 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:09:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26550 states. [2022-12-13 17:09:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26550 to 26548. [2022-12-13 17:09:45,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26548 states, 26543 states have (on average 1.3445729570884979) internal successors, (35689), 26547 states have internal predecessors, (35689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26548 states to 26548 states and 35689 transitions. [2022-12-13 17:09:45,783 INFO L78 Accepts]: Start accepts. Automaton has 26548 states and 35689 transitions. Word has length 155 [2022-12-13 17:09:45,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:45,783 INFO L495 AbstractCegarLoop]: Abstraction has 26548 states and 35689 transitions. [2022-12-13 17:09:45,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 26548 states and 35689 transitions. [2022-12-13 17:09:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 17:09:45,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:45,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:45,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:09:45,796 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:45,796 INFO L85 PathProgramCache]: Analyzing trace with hash 296784743, now seen corresponding path program 1 times [2022-12-13 17:09:45,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:45,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637483520] [2022-12-13 17:09:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:45,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:45,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:45,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637483520] [2022-12-13 17:09:45,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637483520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:45,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:45,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:09:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115316211] [2022-12-13 17:09:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:09:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:09:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:09:45,957 INFO L87 Difference]: Start difference. First operand 26548 states and 35689 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:48,252 INFO L93 Difference]: Finished difference Result 44062 states and 59398 transitions. [2022-12-13 17:09:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:09:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-12-13 17:09:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:48,272 INFO L225 Difference]: With dead ends: 44062 [2022-12-13 17:09:48,272 INFO L226 Difference]: Without dead ends: 24173 [2022-12-13 17:09:48,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:09:48,280 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 53 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:48,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1646 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:09:48,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24173 states. [2022-12-13 17:09:50,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24173 to 24173. [2022-12-13 17:09:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24173 states, 24168 states have (on average 1.347732538894406) internal successors, (32572), 24172 states have internal predecessors, (32572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24173 states to 24173 states and 32572 transitions. [2022-12-13 17:09:50,565 INFO L78 Accepts]: Start accepts. Automaton has 24173 states and 32572 transitions. Word has length 155 [2022-12-13 17:09:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:09:50,566 INFO L495 AbstractCegarLoop]: Abstraction has 24173 states and 32572 transitions. [2022-12-13 17:09:50,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 24173 states and 32572 transitions. [2022-12-13 17:09:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 17:09:50,577 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:09:50,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:09:50,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:09:50,577 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:09:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:09:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1163062228, now seen corresponding path program 1 times [2022-12-13 17:09:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:09:50,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639777332] [2022-12-13 17:09:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:09:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:09:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:09:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:09:50,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:09:50,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639777332] [2022-12-13 17:09:50,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639777332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:09:50,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:09:50,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:09:50,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766108242] [2022-12-13 17:09:50,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:09:50,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:09:50,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:09:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:09:50,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:09:50,622 INFO L87 Difference]: Start difference. First operand 24173 states and 32572 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:09:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:09:55,427 INFO L93 Difference]: Finished difference Result 67997 states and 92088 transitions. [2022-12-13 17:09:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:09:55,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-12-13 17:09:55,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:09:55,472 INFO L225 Difference]: With dead ends: 67997 [2022-12-13 17:09:55,472 INFO L226 Difference]: Without dead ends: 46927 [2022-12-13 17:09:55,487 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:09:55,487 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 449 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:09:55,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 859 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:09:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46927 states. [2022-12-13 17:10:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46927 to 46873. [2022-12-13 17:10:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46873 states, 46868 states have (on average 1.3383972006486302) internal successors, (62728), 46872 states have internal predecessors, (62728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46873 states to 46873 states and 62728 transitions. [2022-12-13 17:10:00,144 INFO L78 Accepts]: Start accepts. Automaton has 46873 states and 62728 transitions. Word has length 161 [2022-12-13 17:10:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:00,144 INFO L495 AbstractCegarLoop]: Abstraction has 46873 states and 62728 transitions. [2022-12-13 17:10:00,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 46873 states and 62728 transitions. [2022-12-13 17:10:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 17:10:00,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:00,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:00,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:10:00,169 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1593816879, now seen corresponding path program 1 times [2022-12-13 17:10:00,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:00,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287035272] [2022-12-13 17:10:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:00,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:00,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:00,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287035272] [2022-12-13 17:10:00,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287035272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:00,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:00,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:10:00,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136879188] [2022-12-13 17:10:00,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:00,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:10:00,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:00,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:10:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:10:00,496 INFO L87 Difference]: Start difference. First operand 46873 states and 62728 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:04,859 INFO L93 Difference]: Finished difference Result 60905 states and 83587 transitions. [2022-12-13 17:10:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:10:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-12-13 17:10:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:04,899 INFO L225 Difference]: With dead ends: 60905 [2022-12-13 17:10:04,899 INFO L226 Difference]: Without dead ends: 42459 [2022-12-13 17:10:04,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:10:04,915 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1302 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:04,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 2701 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:10:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42459 states. [2022-12-13 17:10:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42459 to 42457. [2022-12-13 17:10:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42457 states, 42452 states have (on average 1.314402148308678) internal successors, (55799), 42456 states have internal predecessors, (55799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42457 states to 42457 states and 55799 transitions. [2022-12-13 17:10:09,304 INFO L78 Accepts]: Start accepts. Automaton has 42457 states and 55799 transitions. Word has length 161 [2022-12-13 17:10:09,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:09,305 INFO L495 AbstractCegarLoop]: Abstraction has 42457 states and 55799 transitions. [2022-12-13 17:10:09,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 9 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:09,305 INFO L276 IsEmpty]: Start isEmpty. Operand 42457 states and 55799 transitions. [2022-12-13 17:10:09,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 17:10:09,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:09,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:09,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:10:09,329 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:09,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash 554982836, now seen corresponding path program 1 times [2022-12-13 17:10:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:09,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385684456] [2022-12-13 17:10:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:09,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:09,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385684456] [2022-12-13 17:10:09,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385684456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:09,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:09,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:10:09,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280533354] [2022-12-13 17:10:09,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:09,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:10:09,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:09,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:10:09,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:10:09,494 INFO L87 Difference]: Start difference. First operand 42457 states and 55799 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:12,679 INFO L93 Difference]: Finished difference Result 71005 states and 93225 transitions. [2022-12-13 17:10:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:10:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-12-13 17:10:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:12,705 INFO L225 Difference]: With dead ends: 71005 [2022-12-13 17:10:12,705 INFO L226 Difference]: Without dead ends: 28618 [2022-12-13 17:10:12,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:10:12,724 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 43 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:12,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1630 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:10:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28618 states. [2022-12-13 17:10:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28618 to 28618. [2022-12-13 17:10:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28618 states, 28613 states have (on average 1.3110124768461888) internal successors, (37512), 28617 states have internal predecessors, (37512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28618 states to 28618 states and 37512 transitions. [2022-12-13 17:10:16,064 INFO L78 Accepts]: Start accepts. Automaton has 28618 states and 37512 transitions. Word has length 161 [2022-12-13 17:10:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:16,064 INFO L495 AbstractCegarLoop]: Abstraction has 28618 states and 37512 transitions. [2022-12-13 17:10:16,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 28618 states and 37512 transitions. [2022-12-13 17:10:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 17:10:16,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:16,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:16,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:10:16,078 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 414006733, now seen corresponding path program 1 times [2022-12-13 17:10:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:16,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178507811] [2022-12-13 17:10:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:16,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:16,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:16,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178507811] [2022-12-13 17:10:16,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178507811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:16,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:16,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:10:16,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753690965] [2022-12-13 17:10:16,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:16,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:10:16,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:16,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:10:16,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:10:16,159 INFO L87 Difference]: Start difference. First operand 28618 states and 37512 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:19,758 INFO L93 Difference]: Finished difference Result 56169 states and 73772 transitions. [2022-12-13 17:10:19,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:10:19,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-12-13 17:10:19,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:19,784 INFO L225 Difference]: With dead ends: 56169 [2022-12-13 17:10:19,784 INFO L226 Difference]: Without dead ends: 28618 [2022-12-13 17:10:19,797 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:10:19,798 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1428 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 484 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:10:19,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28618 states. [2022-12-13 17:10:23,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28618 to 28618. [2022-12-13 17:10:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28618 states, 28613 states have (on average 1.2940271904379128) internal successors, (37026), 28617 states have internal predecessors, (37026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28618 states to 28618 states and 37026 transitions. [2022-12-13 17:10:23,100 INFO L78 Accepts]: Start accepts. Automaton has 28618 states and 37026 transitions. Word has length 169 [2022-12-13 17:10:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:23,100 INFO L495 AbstractCegarLoop]: Abstraction has 28618 states and 37026 transitions. [2022-12-13 17:10:23,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 28618 states and 37026 transitions. [2022-12-13 17:10:23,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 17:10:23,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:23,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:23,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:10:23,114 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:23,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1444044968, now seen corresponding path program 1 times [2022-12-13 17:10:23,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:23,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127932585] [2022-12-13 17:10:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:23,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:23,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127932585] [2022-12-13 17:10:23,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127932585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:23,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:23,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:10:23,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705033620] [2022-12-13 17:10:23,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:23,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:10:23,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:23,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:10:23,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:10:23,262 INFO L87 Difference]: Start difference. First operand 28618 states and 37026 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:28,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:28,055 INFO L93 Difference]: Finished difference Result 52368 states and 68883 transitions. [2022-12-13 17:10:28,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:10:28,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-12-13 17:10:28,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:28,090 INFO L225 Difference]: With dead ends: 52368 [2022-12-13 17:10:28,090 INFO L226 Difference]: Without dead ends: 41063 [2022-12-13 17:10:28,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:10:28,102 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 828 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:28,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 918 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:10:28,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41063 states. [2022-12-13 17:10:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41063 to 41061. [2022-12-13 17:10:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41061 states, 41056 states have (on average 1.2767196024941543) internal successors, (52417), 41060 states have internal predecessors, (52417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41061 states to 41061 states and 52417 transitions. [2022-12-13 17:10:33,020 INFO L78 Accepts]: Start accepts. Automaton has 41061 states and 52417 transitions. Word has length 169 [2022-12-13 17:10:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:33,020 INFO L495 AbstractCegarLoop]: Abstraction has 41061 states and 52417 transitions. [2022-12-13 17:10:33,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:33,020 INFO L276 IsEmpty]: Start isEmpty. Operand 41061 states and 52417 transitions. [2022-12-13 17:10:33,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 17:10:33,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:33,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:33,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:10:33,043 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:33,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1157430736, now seen corresponding path program 1 times [2022-12-13 17:10:33,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:33,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276043041] [2022-12-13 17:10:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:33,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:33,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276043041] [2022-12-13 17:10:33,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276043041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:33,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:33,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:10:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963363917] [2022-12-13 17:10:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:33,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:10:33,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:33,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:10:33,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:10:33,194 INFO L87 Difference]: Start difference. First operand 41061 states and 52417 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:38,451 INFO L93 Difference]: Finished difference Result 82393 states and 105142 transitions. [2022-12-13 17:10:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:10:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-12-13 17:10:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:38,497 INFO L225 Difference]: With dead ends: 82393 [2022-12-13 17:10:38,497 INFO L226 Difference]: Without dead ends: 41658 [2022-12-13 17:10:38,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:10:38,522 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 1051 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:38,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1353 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:10:38,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41658 states. [2022-12-13 17:10:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41658 to 41349. [2022-12-13 17:10:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41349 states, 41344 states have (on average 1.275251547987616) internal successors, (52724), 41348 states have internal predecessors, (52724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41349 states to 41349 states and 52724 transitions. [2022-12-13 17:10:44,000 INFO L78 Accepts]: Start accepts. Automaton has 41349 states and 52724 transitions. Word has length 169 [2022-12-13 17:10:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:44,000 INFO L495 AbstractCegarLoop]: Abstraction has 41349 states and 52724 transitions. [2022-12-13 17:10:44,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 41349 states and 52724 transitions. [2022-12-13 17:10:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 17:10:44,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:44,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:44,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:10:44,024 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1236291671, now seen corresponding path program 1 times [2022-12-13 17:10:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979416929] [2022-12-13 17:10:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:44,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979416929] [2022-12-13 17:10:44,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979416929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:44,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:44,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:10:44,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728101511] [2022-12-13 17:10:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:44,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:10:44,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:44,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:10:44,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:10:44,156 INFO L87 Difference]: Start difference. First operand 41349 states and 52724 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:10:48,630 INFO L93 Difference]: Finished difference Result 59124 states and 75340 transitions. [2022-12-13 17:10:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:10:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-12-13 17:10:48,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:10:48,661 INFO L225 Difference]: With dead ends: 59124 [2022-12-13 17:10:48,661 INFO L226 Difference]: Without dead ends: 35800 [2022-12-13 17:10:48,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:10:48,674 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 21 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:10:48,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1588 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:10:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35800 states. [2022-12-13 17:10:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35800 to 35800. [2022-12-13 17:10:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35800 states, 35795 states have (on average 1.2750104763235088) internal successors, (45639), 35799 states have internal predecessors, (45639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35800 states to 35800 states and 45639 transitions. [2022-12-13 17:10:53,295 INFO L78 Accepts]: Start accepts. Automaton has 35800 states and 45639 transitions. Word has length 169 [2022-12-13 17:10:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:10:53,296 INFO L495 AbstractCegarLoop]: Abstraction has 35800 states and 45639 transitions. [2022-12-13 17:10:53,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:10:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 35800 states and 45639 transitions. [2022-12-13 17:10:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:10:53,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:10:53,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:10:53,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:10:53,313 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:10:53,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:10:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash -855174734, now seen corresponding path program 1 times [2022-12-13 17:10:53,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:10:53,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236166513] [2022-12-13 17:10:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:10:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:10:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:10:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:10:54,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:10:54,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236166513] [2022-12-13 17:10:54,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236166513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:10:54,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:10:54,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 17:10:54,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394443286] [2022-12-13 17:10:54,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:10:54,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 17:10:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:10:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 17:10:54,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-12-13 17:10:54,805 INFO L87 Difference]: Start difference. First operand 35800 states and 45639 transitions. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:11:16,723 INFO L93 Difference]: Finished difference Result 65487 states and 86076 transitions. [2022-12-13 17:11:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-13 17:11:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:11:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:11:16,788 INFO L225 Difference]: With dead ends: 65487 [2022-12-13 17:11:16,789 INFO L226 Difference]: Without dead ends: 62927 [2022-12-13 17:11:16,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=904, Invalid=2756, Unknown=0, NotChecked=0, Total=3660 [2022-12-13 17:11:16,801 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 5759 mSDsluCounter, 15424 mSDsCounter, 0 mSdLazyCounter, 5894 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5759 SdHoareTripleChecker+Valid, 16550 SdHoareTripleChecker+Invalid, 6002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 5894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:11:16,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5759 Valid, 16550 Invalid, 6002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 5894 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-13 17:11:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62927 states. [2022-12-13 17:11:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62927 to 37494. [2022-12-13 17:11:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37494 states, 37489 states have (on average 1.2715196457627571) internal successors, (47668), 37493 states have internal predecessors, (47668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37494 states to 37494 states and 47668 transitions. [2022-12-13 17:11:23,262 INFO L78 Accepts]: Start accepts. Automaton has 37494 states and 47668 transitions. Word has length 171 [2022-12-13 17:11:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:11:23,262 INFO L495 AbstractCegarLoop]: Abstraction has 37494 states and 47668 transitions. [2022-12-13 17:11:23,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 37494 states and 47668 transitions. [2022-12-13 17:11:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:11:23,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:11:23,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:11:23,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:11:23,285 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:11:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:11:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash -176781235, now seen corresponding path program 1 times [2022-12-13 17:11:23,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:11:23,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095175141] [2022-12-13 17:11:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:11:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:11:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:11:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:11:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:11:23,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095175141] [2022-12-13 17:11:23,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095175141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:11:23,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:11:23,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:11:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878661790] [2022-12-13 17:11:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:11:23,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:11:23,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:11:23,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:11:23,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:11:23,504 INFO L87 Difference]: Start difference. First operand 37494 states and 47668 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:11:28,239 INFO L93 Difference]: Finished difference Result 61399 states and 78912 transitions. [2022-12-13 17:11:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:11:28,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:11:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:11:28,264 INFO L225 Difference]: With dead ends: 61399 [2022-12-13 17:11:28,264 INFO L226 Difference]: Without dead ends: 26104 [2022-12-13 17:11:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:11:28,280 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 1401 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:11:28,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 704 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:11:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26104 states. [2022-12-13 17:11:31,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26104 to 20475. [2022-12-13 17:11:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20475 states, 20470 states have (on average 1.2570591108939912) internal successors, (25732), 20474 states have internal predecessors, (25732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20475 states to 20475 states and 25732 transitions. [2022-12-13 17:11:31,838 INFO L78 Accepts]: Start accepts. Automaton has 20475 states and 25732 transitions. Word has length 171 [2022-12-13 17:11:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:11:31,838 INFO L495 AbstractCegarLoop]: Abstraction has 20475 states and 25732 transitions. [2022-12-13 17:11:31,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:31,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20475 states and 25732 transitions. [2022-12-13 17:11:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:11:31,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:11:31,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:11:31,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:11:31,850 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:11:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:11:31,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1795637352, now seen corresponding path program 1 times [2022-12-13 17:11:31,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:11:31,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950676001] [2022-12-13 17:11:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:11:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:11:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:11:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:11:33,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:11:33,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950676001] [2022-12-13 17:11:33,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950676001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:11:33,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:11:33,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-12-13 17:11:33,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471125731] [2022-12-13 17:11:33,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:11:33,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 17:11:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:11:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 17:11:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:11:33,122 INFO L87 Difference]: Start difference. First operand 20475 states and 25732 transitions. Second operand has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:11:53,122 INFO L93 Difference]: Finished difference Result 40041 states and 52347 transitions. [2022-12-13 17:11:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-13 17:11:53,123 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:11:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:11:53,154 INFO L225 Difference]: With dead ends: 40041 [2022-12-13 17:11:53,155 INFO L226 Difference]: Without dead ends: 38745 [2022-12-13 17:11:53,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-12-13 17:11:53,161 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 8573 mSDsluCounter, 11837 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8573 SdHoareTripleChecker+Valid, 12750 SdHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:11:53,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8573 Valid, 12750 Invalid, 4496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 4379 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-13 17:11:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38745 states. [2022-12-13 17:11:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38745 to 22246. [2022-12-13 17:11:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22246 states, 22241 states have (on average 1.2519670878107998) internal successors, (27845), 22245 states have internal predecessors, (27845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22246 states to 22246 states and 27845 transitions. [2022-12-13 17:11:57,760 INFO L78 Accepts]: Start accepts. Automaton has 22246 states and 27845 transitions. Word has length 171 [2022-12-13 17:11:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:11:57,760 INFO L495 AbstractCegarLoop]: Abstraction has 22246 states and 27845 transitions. [2022-12-13 17:11:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:11:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22246 states and 27845 transitions. [2022-12-13 17:11:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:11:57,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:11:57,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:11:57,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 17:11:57,772 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:11:57,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:11:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash 367317059, now seen corresponding path program 1 times [2022-12-13 17:11:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:11:57,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526205831] [2022-12-13 17:11:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:11:57,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:11:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:11:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:11:57,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:11:57,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526205831] [2022-12-13 17:11:57,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526205831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:11:57,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:11:57,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:11:57,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003793920] [2022-12-13 17:11:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:11:57,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:11:57,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:11:57,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:11:57,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:11:57,817 INFO L87 Difference]: Start difference. First operand 22246 states and 27845 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:06,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:12:06,184 INFO L93 Difference]: Finished difference Result 52647 states and 66698 transitions. [2022-12-13 17:12:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:12:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:12:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:12:06,216 INFO L225 Difference]: With dead ends: 52647 [2022-12-13 17:12:06,216 INFO L226 Difference]: Without dead ends: 38178 [2022-12-13 17:12:06,228 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:12:06,228 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 335 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:12:06,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 994 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:12:06,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38178 states. [2022-12-13 17:12:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38178 to 37660. [2022-12-13 17:12:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37660 states, 37655 states have (on average 1.2506440047802416) internal successors, (47093), 37659 states have internal predecessors, (47093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37660 states to 37660 states and 47093 transitions. [2022-12-13 17:12:14,301 INFO L78 Accepts]: Start accepts. Automaton has 37660 states and 47093 transitions. Word has length 171 [2022-12-13 17:12:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:12:14,301 INFO L495 AbstractCegarLoop]: Abstraction has 37660 states and 47093 transitions. [2022-12-13 17:12:14,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 37660 states and 47093 transitions. [2022-12-13 17:12:14,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:12:14,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:12:14,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:12:14,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:12:14,324 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:12:14,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:12:14,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1127609204, now seen corresponding path program 1 times [2022-12-13 17:12:14,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:12:14,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885336897] [2022-12-13 17:12:14,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:12:14,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:12:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:12:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:12:15,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:12:15,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885336897] [2022-12-13 17:12:15,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885336897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:12:15,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:12:15,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-12-13 17:12:15,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143151441] [2022-12-13 17:12:15,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:12:15,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 17:12:15,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:12:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 17:12:15,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:12:15,571 INFO L87 Difference]: Start difference. First operand 37660 states and 47093 transitions. Second operand has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:12:41,714 INFO L93 Difference]: Finished difference Result 60934 states and 78652 transitions. [2022-12-13 17:12:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 17:12:41,715 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:12:41,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:12:41,777 INFO L225 Difference]: With dead ends: 60934 [2022-12-13 17:12:41,777 INFO L226 Difference]: Without dead ends: 59050 [2022-12-13 17:12:41,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=581, Invalid=1869, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 17:12:41,789 INFO L413 NwaCegarLoop]: 990 mSDtfsCounter, 6432 mSDsluCounter, 14309 mSDsCounter, 0 mSdLazyCounter, 5009 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6432 SdHoareTripleChecker+Valid, 15299 SdHoareTripleChecker+Invalid, 5048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:12:41,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6432 Valid, 15299 Invalid, 5048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 5009 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-13 17:12:41,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59050 states. [2022-12-13 17:12:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59050 to 39107. [2022-12-13 17:12:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39107 states, 39102 states have (on average 1.2482225973096006) internal successors, (48808), 39106 states have internal predecessors, (48808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39107 states to 39107 states and 48808 transitions. [2022-12-13 17:12:50,981 INFO L78 Accepts]: Start accepts. Automaton has 39107 states and 48808 transitions. Word has length 171 [2022-12-13 17:12:50,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:12:50,981 INFO L495 AbstractCegarLoop]: Abstraction has 39107 states and 48808 transitions. [2022-12-13 17:12:50,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:12:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 39107 states and 48808 transitions. [2022-12-13 17:12:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:12:51,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:12:51,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:12:51,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 17:12:51,007 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:12:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:12:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2108510481, now seen corresponding path program 1 times [2022-12-13 17:12:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:12:51,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531883656] [2022-12-13 17:12:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:12:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:12:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:12:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:12:51,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:12:51,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531883656] [2022-12-13 17:12:51,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531883656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:12:51,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:12:51,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 17:12:51,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019442032] [2022-12-13 17:12:51,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:12:51,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 17:12:51,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:12:51,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 17:12:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:12:51,459 INFO L87 Difference]: Start difference. First operand 39107 states and 48808 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:13:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:13:21,646 INFO L93 Difference]: Finished difference Result 107673 states and 141259 transitions. [2022-12-13 17:13:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 17:13:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:13:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:13:21,767 INFO L225 Difference]: With dead ends: 107673 [2022-12-13 17:13:21,767 INFO L226 Difference]: Without dead ends: 101440 [2022-12-13 17:13:21,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 17:13:21,784 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 5450 mSDsluCounter, 8342 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5450 SdHoareTripleChecker+Valid, 9350 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:13:21,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5450 Valid, 9350 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 17:13:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101440 states. [2022-12-13 17:13:34,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101440 to 50529. [2022-12-13 17:13:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50529 states, 50524 states have (on average 1.2333346528382552) internal successors, (62313), 50528 states have internal predecessors, (62313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:13:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50529 states to 50529 states and 62313 transitions. [2022-12-13 17:13:34,563 INFO L78 Accepts]: Start accepts. Automaton has 50529 states and 62313 transitions. Word has length 171 [2022-12-13 17:13:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:13:34,563 INFO L495 AbstractCegarLoop]: Abstraction has 50529 states and 62313 transitions. [2022-12-13 17:13:34,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:13:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 50529 states and 62313 transitions. [2022-12-13 17:13:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:13:34,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:13:34,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:13:34,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 17:13:34,595 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:13:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:13:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1138208644, now seen corresponding path program 1 times [2022-12-13 17:13:34,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:13:34,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76358492] [2022-12-13 17:13:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:13:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:13:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:13:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:13:35,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:13:35,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76358492] [2022-12-13 17:13:35,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76358492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:13:35,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:13:35,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 17:13:35,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081354626] [2022-12-13 17:13:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:13:35,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 17:13:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:13:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 17:13:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:13:35,114 INFO L87 Difference]: Start difference. First operand 50529 states and 62313 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:14:03,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:14:03,182 INFO L93 Difference]: Finished difference Result 84628 states and 107226 transitions. [2022-12-13 17:14:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 17:14:03,183 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:14:03,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:14:03,261 INFO L225 Difference]: With dead ends: 84628 [2022-12-13 17:14:03,261 INFO L226 Difference]: Without dead ends: 78486 [2022-12-13 17:14:03,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=724, Invalid=1826, Unknown=0, NotChecked=0, Total=2550 [2022-12-13 17:14:03,277 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 5445 mSDsluCounter, 8067 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5445 SdHoareTripleChecker+Valid, 9142 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:14:03,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5445 Valid, 9142 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 17:14:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78486 states. [2022-12-13 17:14:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78486 to 57567. [2022-12-13 17:14:18,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57567 states, 57562 states have (on average 1.2226642576699907) internal successors, (70379), 57566 states have internal predecessors, (70379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:14:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57567 states to 57567 states and 70379 transitions. [2022-12-13 17:14:18,163 INFO L78 Accepts]: Start accepts. Automaton has 57567 states and 70379 transitions. Word has length 171 [2022-12-13 17:14:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:14:18,163 INFO L495 AbstractCegarLoop]: Abstraction has 57567 states and 70379 transitions. [2022-12-13 17:14:18,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:14:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 57567 states and 70379 transitions. [2022-12-13 17:14:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:14:18,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:14:18,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:14:18,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:14:18,200 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:14:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:14:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash 899792804, now seen corresponding path program 1 times [2022-12-13 17:14:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:14:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577169195] [2022-12-13 17:14:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:14:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:14:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:14:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:14:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:14:19,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577169195] [2022-12-13 17:14:19,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577169195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:14:19,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:14:19,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-13 17:14:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848314055] [2022-12-13 17:14:19,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:14:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 17:14:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:14:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 17:14:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-12-13 17:14:19,295 INFO L87 Difference]: Start difference. First operand 57567 states and 70379 transitions. Second operand has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 22 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:15:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:15:18,331 INFO L93 Difference]: Finished difference Result 139031 states and 181614 transitions. [2022-12-13 17:15:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-13 17:15:18,332 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 22 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:15:18,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:15:18,489 INFO L225 Difference]: With dead ends: 139031 [2022-12-13 17:15:18,489 INFO L226 Difference]: Without dead ends: 134185 [2022-12-13 17:15:18,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1230, Invalid=4470, Unknown=0, NotChecked=0, Total=5700 [2022-12-13 17:15:18,514 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 7082 mSDsluCounter, 15609 mSDsCounter, 0 mSdLazyCounter, 5616 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7082 SdHoareTripleChecker+Valid, 16774 SdHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:15:18,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7082 Valid, 16774 Invalid, 5778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [162 Valid, 5616 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-13 17:15:18,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134185 states. [2022-12-13 17:15:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134185 to 58815. [2022-12-13 17:15:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58815 states, 58810 states have (on average 1.221169869069886) internal successors, (71817), 58814 states have internal predecessors, (71817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:15:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58815 states to 58815 states and 71817 transitions. [2022-12-13 17:15:37,735 INFO L78 Accepts]: Start accepts. Automaton has 58815 states and 71817 transitions. Word has length 171 [2022-12-13 17:15:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:15:37,735 INFO L495 AbstractCegarLoop]: Abstraction has 58815 states and 71817 transitions. [2022-12-13 17:15:37,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 22 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:15:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 58815 states and 71817 transitions. [2022-12-13 17:15:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:15:37,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:15:37,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:15:37,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 17:15:37,773 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:15:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:15:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash -528527489, now seen corresponding path program 1 times [2022-12-13 17:15:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:15:37,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512785798] [2022-12-13 17:15:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:15:37,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:15:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:15:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:15:37,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:15:37,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512785798] [2022-12-13 17:15:37,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512785798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:15:37,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:15:37,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:15:37,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541460228] [2022-12-13 17:15:37,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:15:37,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:15:37,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:15:38,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:15:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:15:38,000 INFO L87 Difference]: Start difference. First operand 58815 states and 71817 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:15:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:15:52,121 INFO L93 Difference]: Finished difference Result 86294 states and 106715 transitions. [2022-12-13 17:15:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:15:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:15:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:15:52,163 INFO L225 Difference]: With dead ends: 86294 [2022-12-13 17:15:52,164 INFO L226 Difference]: Without dead ends: 42940 [2022-12-13 17:15:52,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:15:52,186 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 3451 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:15:52,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3451 Valid, 661 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 17:15:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42940 states. [2022-12-13 17:16:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42940 to 38536. [2022-12-13 17:16:04,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38536 states, 38531 states have (on average 1.2031351379408788) internal successors, (46358), 38535 states have internal predecessors, (46358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:16:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38536 states to 38536 states and 46358 transitions. [2022-12-13 17:16:04,411 INFO L78 Accepts]: Start accepts. Automaton has 38536 states and 46358 transitions. Word has length 171 [2022-12-13 17:16:04,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:16:04,412 INFO L495 AbstractCegarLoop]: Abstraction has 38536 states and 46358 transitions. [2022-12-13 17:16:04,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:16:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 38536 states and 46358 transitions. [2022-12-13 17:16:04,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:16:04,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:16:04,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:16:04,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 17:16:04,438 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:16:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:16:04,439 INFO L85 PathProgramCache]: Analyzing trace with hash -538738303, now seen corresponding path program 1 times [2022-12-13 17:16:04,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:16:04,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80659586] [2022-12-13 17:16:04,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:16:04,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:16:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:16:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:16:04,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:16:04,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80659586] [2022-12-13 17:16:04,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80659586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:16:04,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:16:04,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 17:16:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494122506] [2022-12-13 17:16:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:16:04,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:16:04,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:16:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:16:04,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:16:04,857 INFO L87 Difference]: Start difference. First operand 38536 states and 46358 transitions. Second operand has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:16:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:16:31,465 INFO L93 Difference]: Finished difference Result 76109 states and 94332 transitions. [2022-12-13 17:16:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 17:16:31,466 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:16:31,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:16:31,535 INFO L225 Difference]: With dead ends: 76109 [2022-12-13 17:16:31,535 INFO L226 Difference]: Without dead ends: 72645 [2022-12-13 17:16:31,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2022-12-13 17:16:31,549 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 4359 mSDsluCounter, 6452 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4359 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:16:31,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4359 Valid, 7199 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 17:16:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72645 states. [2022-12-13 17:16:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72645 to 44911. [2022-12-13 17:16:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44911 states, 44906 states have (on average 1.1993497528169954) internal successors, (53858), 44910 states have internal predecessors, (53858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:16:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44911 states to 44911 states and 53858 transitions. [2022-12-13 17:16:45,992 INFO L78 Accepts]: Start accepts. Automaton has 44911 states and 53858 transitions. Word has length 171 [2022-12-13 17:16:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:16:45,993 INFO L495 AbstractCegarLoop]: Abstraction has 44911 states and 53858 transitions. [2022-12-13 17:16:45,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 13 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:16:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 44911 states and 53858 transitions. [2022-12-13 17:16:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:16:46,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:16:46,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:16:46,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 17:16:46,024 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:16:46,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:16:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash -888234575, now seen corresponding path program 1 times [2022-12-13 17:16:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:16:46,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467563638] [2022-12-13 17:16:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:16:46,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:16:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:16:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:16:47,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:16:47,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467563638] [2022-12-13 17:16:47,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467563638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:16:47,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:16:47,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 17:16:47,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500505537] [2022-12-13 17:16:47,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:16:47,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 17:16:47,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:16:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 17:16:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-12-13 17:16:47,328 INFO L87 Difference]: Start difference. First operand 44911 states and 53858 transitions. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:17:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:17:48,668 INFO L93 Difference]: Finished difference Result 108957 states and 138365 transitions. [2022-12-13 17:17:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 17:17:48,669 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:17:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:17:48,790 INFO L225 Difference]: With dead ends: 108957 [2022-12-13 17:17:48,791 INFO L226 Difference]: Without dead ends: 106416 [2022-12-13 17:17:48,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=772, Invalid=3260, Unknown=0, NotChecked=0, Total=4032 [2022-12-13 17:17:48,810 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 8014 mSDsluCounter, 19285 mSDsCounter, 0 mSdLazyCounter, 6543 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8014 SdHoareTripleChecker+Valid, 20708 SdHoareTripleChecker+Invalid, 6707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 6543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:17:48,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8014 Valid, 20708 Invalid, 6707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [164 Valid, 6543 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-13 17:17:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106416 states. [2022-12-13 17:18:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106416 to 48993. [2022-12-13 17:18:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48993 states, 48988 states have (on average 1.1972115620151873) internal successors, (58649), 48992 states have internal predecessors, (58649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:18:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48993 states to 48993 states and 58649 transitions. [2022-12-13 17:18:07,013 INFO L78 Accepts]: Start accepts. Automaton has 48993 states and 58649 transitions. Word has length 171 [2022-12-13 17:18:07,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:18:07,013 INFO L495 AbstractCegarLoop]: Abstraction has 48993 states and 58649 transitions. [2022-12-13 17:18:07,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:18:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 48993 states and 58649 transitions. [2022-12-13 17:18:07,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:18:07,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:18:07,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:18:07,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 17:18:07,047 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:18:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:18:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash 870629111, now seen corresponding path program 1 times [2022-12-13 17:18:07,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:18:07,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526252361] [2022-12-13 17:18:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:18:07,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:18:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:18:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:18:07,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:18:07,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526252361] [2022-12-13 17:18:07,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526252361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:18:07,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:18:07,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 17:18:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2987041] [2022-12-13 17:18:07,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:18:07,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 17:18:07,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:18:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 17:18:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:18:07,490 INFO L87 Difference]: Start difference. First operand 48993 states and 58649 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:18:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:18:44,706 INFO L93 Difference]: Finished difference Result 85148 states and 104011 transitions. [2022-12-13 17:18:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 17:18:44,706 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:18:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:18:44,783 INFO L225 Difference]: With dead ends: 85148 [2022-12-13 17:18:44,783 INFO L226 Difference]: Without dead ends: 81344 [2022-12-13 17:18:44,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=724, Invalid=1826, Unknown=0, NotChecked=0, Total=2550 [2022-12-13 17:18:44,799 INFO L413 NwaCegarLoop]: 1181 mSDtfsCounter, 4855 mSDsluCounter, 9174 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 10355 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:18:44,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4855 Valid, 10355 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:18:44,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81344 states. [2022-12-13 17:19:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81344 to 64463. [2022-12-13 17:19:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64463 states, 64458 states have (on average 1.1880759564367496) internal successors, (76581), 64462 states have internal predecessors, (76581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:19:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64463 states to 64463 states and 76581 transitions. [2022-12-13 17:19:07,432 INFO L78 Accepts]: Start accepts. Automaton has 64463 states and 76581 transitions. Word has length 171 [2022-12-13 17:19:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:19:07,432 INFO L495 AbstractCegarLoop]: Abstraction has 64463 states and 76581 transitions. [2022-12-13 17:19:07,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:19:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 64463 states and 76581 transitions. [2022-12-13 17:19:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:19:07,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:19:07,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:19:07,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 17:19:07,485 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:19:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:19:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash -871130332, now seen corresponding path program 1 times [2022-12-13 17:19:07,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:19:07,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634540049] [2022-12-13 17:19:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:19:07,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:19:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:19:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:19:07,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:19:07,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634540049] [2022-12-13 17:19:07,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634540049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:19:07,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:19:07,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 17:19:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328700422] [2022-12-13 17:19:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:19:07,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 17:19:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:19:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 17:19:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:19:07,936 INFO L87 Difference]: Start difference. First operand 64463 states and 76581 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:20:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:20:17,016 INFO L93 Difference]: Finished difference Result 136639 states and 169565 transitions. [2022-12-13 17:20:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 17:20:17,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:20:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:20:17,155 INFO L225 Difference]: With dead ends: 136639 [2022-12-13 17:20:17,156 INFO L226 Difference]: Without dead ends: 132979 [2022-12-13 17:20:17,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=655, Invalid=1697, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 17:20:17,178 INFO L413 NwaCegarLoop]: 1192 mSDtfsCounter, 7051 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7051 SdHoareTripleChecker+Valid, 9952 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:20:17,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7051 Valid, 9952 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 17:20:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132979 states. [2022-12-13 17:20:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132979 to 75191. [2022-12-13 17:20:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75191 states, 75186 states have (on average 1.1832788019046099) internal successors, (88966), 75190 states have internal predecessors, (88966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:20:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75191 states to 75191 states and 88966 transitions. [2022-12-13 17:20:45,717 INFO L78 Accepts]: Start accepts. Automaton has 75191 states and 88966 transitions. Word has length 171 [2022-12-13 17:20:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:20:45,717 INFO L495 AbstractCegarLoop]: Abstraction has 75191 states and 88966 transitions. [2022-12-13 17:20:45,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:20:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 75191 states and 88966 transitions. [2022-12-13 17:20:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:20:45,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:20:45,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:20:45,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 17:20:45,780 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:20:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:20:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1221057580, now seen corresponding path program 1 times [2022-12-13 17:20:45,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:20:45,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514817575] [2022-12-13 17:20:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:20:45,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:20:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:20:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:20:47,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:20:47,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514817575] [2022-12-13 17:20:47,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514817575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:20:47,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:20:47,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 17:20:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229879075] [2022-12-13 17:20:47,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:20:47,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 17:20:47,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:20:47,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 17:20:47,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-12-13 17:20:47,255 INFO L87 Difference]: Start difference. First operand 75191 states and 88966 transitions. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:21:33,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:21:33,600 INFO L93 Difference]: Finished difference Result 99295 states and 119516 transitions. [2022-12-13 17:21:33,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 17:21:33,601 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-12-13 17:21:33,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:21:33,686 INFO L225 Difference]: With dead ends: 99295 [2022-12-13 17:21:33,687 INFO L226 Difference]: Without dead ends: 95843 [2022-12-13 17:21:33,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=358, Invalid=1048, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 17:21:33,701 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 3821 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 6577 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 19239 SdHoareTripleChecker+Invalid, 6589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 6577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-13 17:21:33,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3821 Valid, 19239 Invalid, 6589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 6577 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-13 17:21:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95843 states. [2022-12-13 17:22:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95843 to 79590. [2022-12-13 17:22:03,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79590 states, 79585 states have (on average 1.1816045737262046) internal successors, (94038), 79589 states have internal predecessors, (94038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:22:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79590 states to 79590 states and 94038 transitions. [2022-12-13 17:22:03,531 INFO L78 Accepts]: Start accepts. Automaton has 79590 states and 94038 transitions. Word has length 171 [2022-12-13 17:22:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:22:03,532 INFO L495 AbstractCegarLoop]: Abstraction has 79590 states and 94038 transitions. [2022-12-13 17:22:03,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:22:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand 79590 states and 94038 transitions. [2022-12-13 17:22:03,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 17:22:03,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:22:03,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:22:03,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 17:22:03,602 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-13 17:22:03,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:22:03,602 INFO L85 PathProgramCache]: Analyzing trace with hash -269347805, now seen corresponding path program 1 times [2022-12-13 17:22:03,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:22:03,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905400783] [2022-12-13 17:22:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:22:03,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:22:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:22:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:22:03,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:22:03,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905400783] [2022-12-13 17:22:03,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905400783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:22:03,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:22:04,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 17:22:04,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936996018] [2022-12-13 17:22:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:22:04,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 17:22:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:22:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 17:22:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:22:04,002 INFO L87 Difference]: Start difference. First operand 79590 states and 94038 transitions. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)