./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa --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 b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:44:51,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:44:51,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:44:51,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:44:51,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:44:51,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:44:51,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:44:51,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:44:51,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:44:51,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:44:51,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:44:51,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:44:51,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:44:51,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:44:51,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:44:51,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:44:51,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:44:51,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:44:51,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:44:51,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:44:51,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:44:51,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:44:51,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:44:51,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:44:51,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:44:51,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:44:51,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:44:51,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:44:51,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:44:51,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:44:51,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:44:51,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:44:51,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:44:51,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:44:51,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:44:51,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:44:51,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:44:51,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:44:51,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:44:51,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:44:51,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:44:51,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:44:51,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:44:51,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:44:51,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:44:51,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:44:51,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:44:51,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:44:51,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:44:51,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:44:51,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:44:51,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:44:51,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:44:51,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:44:51,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:44:51,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:44:51,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:44:51,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 [2021-12-06 23:44:52,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:44:52,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:44:52,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:44:52,193 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:44:52,193 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:44:52,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2021-12-06 23:44:52,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/data/2b86c212d/cb12e74fdfc040b698284e4d4c594a6f/FLAG85157a6b3 [2021-12-06 23:44:52,831 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:44:52,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2021-12-06 23:44:52,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/data/2b86c212d/cb12e74fdfc040b698284e4d4c594a6f/FLAG85157a6b3 [2021-12-06 23:44:53,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/data/2b86c212d/cb12e74fdfc040b698284e4d4c594a6f [2021-12-06 23:44:53,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:44:53,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:44:53,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:44:53,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:44:53,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:44:53,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:44:53" (1/1) ... [2021-12-06 23:44:53,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53be0ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:53, skipping insertion in model container [2021-12-06 23:44:53,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:44:53" (1/1) ... [2021-12-06 23:44:53,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:44:53,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:44:53,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2021-12-06 23:44:53,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2021-12-06 23:44:53,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2021-12-06 23:44:53,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2021-12-06 23:44:53,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2021-12-06 23:44:53,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2021-12-06 23:44:53,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2021-12-06 23:44:54,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:44:54,033 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:44:54,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2021-12-06 23:44:54,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2021-12-06 23:44:54,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2021-12-06 23:44:54,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2021-12-06 23:44:54,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2021-12-06 23:44:54,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2021-12-06 23:44:54,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2021-12-06 23:44:54,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:44:54,365 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:44:54,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54 WrapperNode [2021-12-06 23:44:54,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:44:54,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:44:54,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:44:54,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:44:54,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,519 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7008 [2021-12-06 23:44:54,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:44:54,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:44:54,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:44:54,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:44:54,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:44:54,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:44:54,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:44:54,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:44:54,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (1/1) ... [2021-12-06 23:44:54,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:44:54,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:44:54,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:44:54,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cb26e3-e72b-42c1-a4e5-d741153acc01/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:44:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:44:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:44:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:44:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:44:54,907 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:44:54,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:44:56,751 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:44:56,768 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:44:56,768 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 23:44:56,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:44:56 BoogieIcfgContainer [2021-12-06 23:44:56,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:44:56,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:44:56,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:44:56,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:44:56,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:44:53" (1/3) ... [2021-12-06 23:44:56,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4baa3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:44:56, skipping insertion in model container [2021-12-06 23:44:56,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:44:54" (2/3) ... [2021-12-06 23:44:56,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4baa3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:44:56, skipping insertion in model container [2021-12-06 23:44:56,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:44:56" (3/3) ... [2021-12-06 23:44:56,777 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2021-12-06 23:44:56,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:44:56,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-12-06 23:44:56,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:44:56,827 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:44:56,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-06 23:44:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 1106 states, 1098 states have (on average 1.8852459016393444) internal successors, (2070), 1105 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:44:56,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:56,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:56,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:56,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1160265217, now seen corresponding path program 1 times [2021-12-06 23:44:56,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:56,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634515009] [2021-12-06 23:44:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:56,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:57,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:57,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634515009] [2021-12-06 23:44:57,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634515009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:57,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:57,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:44:57,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435198533] [2021-12-06 23:44:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:57,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:44:57,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:57,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:44:57,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:57,278 INFO L87 Difference]: Start difference. First operand has 1106 states, 1098 states have (on average 1.8852459016393444) internal successors, (2070), 1105 states have internal predecessors, (2070), 0 states have call successors, (0), 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 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:57,514 INFO L93 Difference]: Finished difference Result 1465 states and 2651 transitions. [2021-12-06 23:44:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:44:57,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-12-06 23:44:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:57,534 INFO L225 Difference]: With dead ends: 1465 [2021-12-06 23:44:57,534 INFO L226 Difference]: Without dead ends: 1288 [2021-12-06 23:44:57,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:57,541 INFO L933 BasicCegarLoop]: 2055 mSDtfsCounter, 969 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:57,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [969 Valid, 3330 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:44:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2021-12-06 23:44:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1280. [2021-12-06 23:44:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1273 states have (on average 1.3165750196386488) internal successors, (1676), 1279 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1676 transitions. [2021-12-06 23:44:57,624 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1676 transitions. Word has length 64 [2021-12-06 23:44:57,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:57,624 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 1676 transitions. [2021-12-06 23:44:57,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1676 transitions. [2021-12-06 23:44:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:44:57,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:57,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:57,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:44:57,629 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:57,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1978887998, now seen corresponding path program 1 times [2021-12-06 23:44:57,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:57,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641321328] [2021-12-06 23:44:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:57,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:57,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:57,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641321328] [2021-12-06 23:44:57,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641321328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:57,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:57,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:44:57,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530155639] [2021-12-06 23:44:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:57,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:44:57,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:44:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:57,734 INFO L87 Difference]: Start difference. First operand 1280 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:57,806 INFO L93 Difference]: Finished difference Result 1930 states and 2622 transitions. [2021-12-06 23:44:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:44:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-12-06 23:44:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:57,817 INFO L225 Difference]: With dead ends: 1930 [2021-12-06 23:44:57,817 INFO L226 Difference]: Without dead ends: 1576 [2021-12-06 23:44:57,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:57,821 INFO L933 BasicCegarLoop]: 1424 mSDtfsCounter, 717 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:57,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 2315 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:44:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-06 23:44:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1568. [2021-12-06 23:44:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1561 states have (on average 1.3401665598975017) internal successors, (2092), 1567 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2092 transitions. [2021-12-06 23:44:57,893 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2092 transitions. Word has length 64 [2021-12-06 23:44:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:57,894 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2092 transitions. [2021-12-06 23:44:57,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2092 transitions. [2021-12-06 23:44:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:44:57,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:57,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:57,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:44:57,898 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:57,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:57,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1566940908, now seen corresponding path program 1 times [2021-12-06 23:44:57,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:57,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063035929] [2021-12-06 23:44:57,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:57,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:58,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063035929] [2021-12-06 23:44:58,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063035929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:58,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:58,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:44:58,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489711725] [2021-12-06 23:44:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:58,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:44:58,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:44:58,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:44:58,020 INFO L87 Difference]: Start difference. First operand 1568 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:58,499 INFO L93 Difference]: Finished difference Result 3042 states and 4184 transitions. [2021-12-06 23:44:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:44:58,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-12-06 23:44:58,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:58,510 INFO L225 Difference]: With dead ends: 3042 [2021-12-06 23:44:58,510 INFO L226 Difference]: Without dead ends: 1783 [2021-12-06 23:44:58,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:44:58,514 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 3661 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:58,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 834 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:44:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2021-12-06 23:44:58,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1775. [2021-12-06 23:44:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1768 states have (on average 1.3885746606334841) internal successors, (2455), 1774 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2455 transitions. [2021-12-06 23:44:58,597 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2455 transitions. Word has length 64 [2021-12-06 23:44:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:58,597 INFO L470 AbstractCegarLoop]: Abstraction has 1775 states and 2455 transitions. [2021-12-06 23:44:58,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2455 transitions. [2021-12-06 23:44:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-06 23:44:58,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:58,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:58,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:44:58,601 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:58,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1913482263, now seen corresponding path program 1 times [2021-12-06 23:44:58,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:58,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185732918] [2021-12-06 23:44:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:58,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:58,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:58,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:58,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185732918] [2021-12-06 23:44:58,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185732918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:58,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:58,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:44:58,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133123433] [2021-12-06 23:44:58,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:58,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:44:58,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:58,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:44:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:58,664 INFO L87 Difference]: Start difference. First operand 1775 states and 2455 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:58,743 INFO L93 Difference]: Finished difference Result 3469 states and 4871 transitions. [2021-12-06 23:44:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:44:58,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-12-06 23:44:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:58,754 INFO L225 Difference]: With dead ends: 3469 [2021-12-06 23:44:58,754 INFO L226 Difference]: Without dead ends: 2489 [2021-12-06 23:44:58,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:44:58,756 INFO L933 BasicCegarLoop]: 1421 mSDtfsCounter, 897 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:58,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 2138 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:44:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2021-12-06 23:44:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2477. [2021-12-06 23:44:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2470 states have (on average 1.374493927125506) internal successors, (3395), 2476 states have internal predecessors, (3395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3395 transitions. [2021-12-06 23:44:58,844 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3395 transitions. Word has length 65 [2021-12-06 23:44:58,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:58,845 INFO L470 AbstractCegarLoop]: Abstraction has 2477 states and 3395 transitions. [2021-12-06 23:44:58,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:58,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3395 transitions. [2021-12-06 23:44:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-06 23:44:58,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:58,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:58,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:44:58,849 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1759204869, now seen corresponding path program 1 times [2021-12-06 23:44:58,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:58,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855772180] [2021-12-06 23:44:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:58,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:58,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:58,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855772180] [2021-12-06 23:44:58,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855772180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:58,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:58,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:44:58,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676468531] [2021-12-06 23:44:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:58,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:44:58,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:44:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:44:58,913 INFO L87 Difference]: Start difference. First operand 2477 states and 3395 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:59,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:59,442 INFO L93 Difference]: Finished difference Result 4728 states and 6563 transitions. [2021-12-06 23:44:59,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:44:59,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-12-06 23:44:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:59,457 INFO L225 Difference]: With dead ends: 4728 [2021-12-06 23:44:59,457 INFO L226 Difference]: Without dead ends: 2856 [2021-12-06 23:44:59,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:44:59,460 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 3042 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:59,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3042 Valid, 696 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:44:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-12-06 23:44:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2842. [2021-12-06 23:44:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2835 states have (on average 1.366137566137566) internal successors, (3873), 2841 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3873 transitions. [2021-12-06 23:44:59,571 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3873 transitions. Word has length 65 [2021-12-06 23:44:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:59,571 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 3873 transitions. [2021-12-06 23:44:59,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:44:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3873 transitions. [2021-12-06 23:44:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-06 23:44:59,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:59,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:44:59,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:44:59,575 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:44:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1773849621, now seen corresponding path program 1 times [2021-12-06 23:44:59,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:59,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013296454] [2021-12-06 23:44:59,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:59,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:44:59,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:59,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013296454] [2021-12-06 23:44:59,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013296454] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:59,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:59,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:44:59,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216878544] [2021-12-06 23:44:59,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:59,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:44:59,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:44:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:44:59,641 INFO L87 Difference]: Start difference. First operand 2842 states and 3873 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:00,100 INFO L93 Difference]: Finished difference Result 6738 states and 9400 transitions. [2021-12-06 23:45:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:45:00,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-12-06 23:45:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:00,124 INFO L225 Difference]: With dead ends: 6738 [2021-12-06 23:45:00,124 INFO L226 Difference]: Without dead ends: 4186 [2021-12-06 23:45:00,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:00,130 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 2719 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:00,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 645 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:45:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-12-06 23:45:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 4178. [2021-12-06 23:45:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4178 states, 4171 states have (on average 1.3955885878686167) internal successors, (5821), 4177 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4178 states to 4178 states and 5821 transitions. [2021-12-06 23:45:00,341 INFO L78 Accepts]: Start accepts. Automaton has 4178 states and 5821 transitions. Word has length 65 [2021-12-06 23:45:00,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:00,341 INFO L470 AbstractCegarLoop]: Abstraction has 4178 states and 5821 transitions. [2021-12-06 23:45:00,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4178 states and 5821 transitions. [2021-12-06 23:45:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 23:45:00,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:00,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:00,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:45:00,347 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:00,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2076438910, now seen corresponding path program 1 times [2021-12-06 23:45:00,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:00,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920218515] [2021-12-06 23:45:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:00,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:00,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:00,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920218515] [2021-12-06 23:45:00,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920218515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:00,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:00,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:45:00,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540530437] [2021-12-06 23:45:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:00,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:45:00,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:45:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:00,413 INFO L87 Difference]: Start difference. First operand 4178 states and 5821 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:00,595 INFO L93 Difference]: Finished difference Result 8947 states and 12566 transitions. [2021-12-06 23:45:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:45:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-06 23:45:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:00,618 INFO L225 Difference]: With dead ends: 8947 [2021-12-06 23:45:00,618 INFO L226 Difference]: Without dead ends: 5787 [2021-12-06 23:45:00,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:00,623 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 584 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:00,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 1530 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:45:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2021-12-06 23:45:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5761. [2021-12-06 23:45:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5761 states, 5754 states have (on average 1.3722627737226278) internal successors, (7896), 5760 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5761 states to 5761 states and 7896 transitions. [2021-12-06 23:45:00,837 INFO L78 Accepts]: Start accepts. Automaton has 5761 states and 7896 transitions. Word has length 66 [2021-12-06 23:45:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:00,838 INFO L470 AbstractCegarLoop]: Abstraction has 5761 states and 7896 transitions. [2021-12-06 23:45:00,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5761 states and 7896 transitions. [2021-12-06 23:45:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-06 23:45:00,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:00,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:00,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:45:00,844 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1790108590, now seen corresponding path program 1 times [2021-12-06 23:45:00,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:00,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074336257] [2021-12-06 23:45:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:00,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:00,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:00,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074336257] [2021-12-06 23:45:00,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074336257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:00,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:00,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:45:00,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249484675] [2021-12-06 23:45:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:00,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:45:00,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:45:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:45:00,915 INFO L87 Difference]: Start difference. First operand 5761 states and 7896 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:01,375 INFO L93 Difference]: Finished difference Result 12941 states and 17876 transitions. [2021-12-06 23:45:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:45:01,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-06 23:45:01,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:01,403 INFO L225 Difference]: With dead ends: 12941 [2021-12-06 23:45:01,403 INFO L226 Difference]: Without dead ends: 7617 [2021-12-06 23:45:01,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:01,409 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 2375 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:01,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2375 Valid, 580 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:45:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-12-06 23:45:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7582. [2021-12-06 23:45:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7582 states, 7575 states have (on average 1.372145214521452) internal successors, (10394), 7581 states have internal predecessors, (10394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7582 states to 7582 states and 10394 transitions. [2021-12-06 23:45:01,669 INFO L78 Accepts]: Start accepts. Automaton has 7582 states and 10394 transitions. Word has length 67 [2021-12-06 23:45:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:01,669 INFO L470 AbstractCegarLoop]: Abstraction has 7582 states and 10394 transitions. [2021-12-06 23:45:01,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7582 states and 10394 transitions. [2021-12-06 23:45:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 23:45:01,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:01,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:01,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:45:01,674 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:01,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash 185593086, now seen corresponding path program 1 times [2021-12-06 23:45:01,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:01,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199468768] [2021-12-06 23:45:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:01,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:01,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:01,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199468768] [2021-12-06 23:45:01,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199468768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:01,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:01,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:45:01,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567705652] [2021-12-06 23:45:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:01,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:45:01,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:45:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:01,753 INFO L87 Difference]: Start difference. First operand 7582 states and 10394 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:03,521 INFO L93 Difference]: Finished difference Result 37661 states and 52823 transitions. [2021-12-06 23:45:03,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:45:03,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-06 23:45:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:03,595 INFO L225 Difference]: With dead ends: 37661 [2021-12-06 23:45:03,595 INFO L226 Difference]: Without dead ends: 34010 [2021-12-06 23:45:03,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:45:03,604 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 4950 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:03,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 1133 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34010 states. [2021-12-06 23:45:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34010 to 7650. [2021-12-06 23:45:04,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7643 states have (on average 1.3714510009158707) internal successors, (10482), 7649 states have internal predecessors, (10482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 10482 transitions. [2021-12-06 23:45:04,170 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 10482 transitions. Word has length 68 [2021-12-06 23:45:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:04,170 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 10482 transitions. [2021-12-06 23:45:04,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 10482 transitions. [2021-12-06 23:45:04,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 23:45:04,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:04,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:04,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:45:04,174 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash 290423248, now seen corresponding path program 1 times [2021-12-06 23:45:04,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:04,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484178450] [2021-12-06 23:45:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:04,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:04,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:04,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484178450] [2021-12-06 23:45:04,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484178450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:04,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:04,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:45:04,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814028577] [2021-12-06 23:45:04,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:04,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:45:04,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:04,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:45:04,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:04,237 INFO L87 Difference]: Start difference. First operand 7650 states and 10482 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:06,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:06,550 INFO L93 Difference]: Finished difference Result 33564 states and 46915 transitions. [2021-12-06 23:45:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:45:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-06 23:45:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:06,589 INFO L225 Difference]: With dead ends: 33564 [2021-12-06 23:45:06,589 INFO L226 Difference]: Without dead ends: 30095 [2021-12-06 23:45:06,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:45:06,598 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 4490 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:06,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4490 Valid, 1119 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:45:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30095 states. [2021-12-06 23:45:07,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30095 to 7772. [2021-12-06 23:45:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 7765 states have (on average 1.3707662588538312) internal successors, (10644), 7771 states have internal predecessors, (10644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 10644 transitions. [2021-12-06 23:45:07,173 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 10644 transitions. Word has length 68 [2021-12-06 23:45:07,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:07,174 INFO L470 AbstractCegarLoop]: Abstraction has 7772 states and 10644 transitions. [2021-12-06 23:45:07,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 10644 transitions. [2021-12-06 23:45:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 23:45:07,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:07,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:07,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 23:45:07,178 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash -770234336, now seen corresponding path program 1 times [2021-12-06 23:45:07,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:07,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407729285] [2021-12-06 23:45:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:07,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:07,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:07,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407729285] [2021-12-06 23:45:07,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407729285] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:07,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:07,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:45:07,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596453533] [2021-12-06 23:45:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:07,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:45:07,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:07,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:45:07,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:07,238 INFO L87 Difference]: Start difference. First operand 7772 states and 10644 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:09,804 INFO L93 Difference]: Finished difference Result 29404 states and 40968 transitions. [2021-12-06 23:45:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:45:09,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-06 23:45:09,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:09,840 INFO L225 Difference]: With dead ends: 29404 [2021-12-06 23:45:09,840 INFO L226 Difference]: Without dead ends: 26199 [2021-12-06 23:45:09,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:45:09,847 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 3217 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:09,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 1245 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26199 states. [2021-12-06 23:45:10,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26199 to 7843. [2021-12-06 23:45:10,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7843 states, 7836 states have (on average 1.3709800918836141) internal successors, (10743), 7842 states have internal predecessors, (10743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 10743 transitions. [2021-12-06 23:45:10,533 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 10743 transitions. Word has length 68 [2021-12-06 23:45:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:10,534 INFO L470 AbstractCegarLoop]: Abstraction has 7843 states and 10743 transitions. [2021-12-06 23:45:10,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 10743 transitions. [2021-12-06 23:45:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 23:45:10,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:10,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:10,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 23:45:10,540 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:10,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:10,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2053099389, now seen corresponding path program 1 times [2021-12-06 23:45:10,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:10,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313980932] [2021-12-06 23:45:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:10,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:10,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:10,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313980932] [2021-12-06 23:45:10,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313980932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:10,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:10,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:45:10,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42184028] [2021-12-06 23:45:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:10,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:45:10,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:45:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:45:10,601 INFO L87 Difference]: Start difference. First operand 7843 states and 10743 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:13,172 INFO L93 Difference]: Finished difference Result 26992 states and 37397 transitions. [2021-12-06 23:45:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:45:13,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-06 23:45:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:13,200 INFO L225 Difference]: With dead ends: 26992 [2021-12-06 23:45:13,200 INFO L226 Difference]: Without dead ends: 23321 [2021-12-06 23:45:13,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:45:13,208 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 4343 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:13,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4343 Valid, 1072 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:45:13,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23321 states. [2021-12-06 23:45:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23321 to 7878. [2021-12-06 23:45:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7878 states, 7871 states have (on average 1.3706009401600814) internal successors, (10788), 7877 states have internal predecessors, (10788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 10788 transitions. [2021-12-06 23:45:13,916 INFO L78 Accepts]: Start accepts. Automaton has 7878 states and 10788 transitions. Word has length 68 [2021-12-06 23:45:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:13,917 INFO L470 AbstractCegarLoop]: Abstraction has 7878 states and 10788 transitions. [2021-12-06 23:45:13,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7878 states and 10788 transitions. [2021-12-06 23:45:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:45:13,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:13,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:13,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 23:45:13,922 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 43383936, now seen corresponding path program 1 times [2021-12-06 23:45:13,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:13,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803807027] [2021-12-06 23:45:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:13,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:14,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:14,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803807027] [2021-12-06 23:45:14,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803807027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:14,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:14,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:45:14,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518027824] [2021-12-06 23:45:14,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:14,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:45:14,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:14,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:45:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:45:14,034 INFO L87 Difference]: Start difference. First operand 7878 states and 10788 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:16,102 INFO L93 Difference]: Finished difference Result 21561 states and 30031 transitions. [2021-12-06 23:45:16,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:45:16,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-06 23:45:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:16,123 INFO L225 Difference]: With dead ends: 21561 [2021-12-06 23:45:16,123 INFO L226 Difference]: Without dead ends: 16048 [2021-12-06 23:45:16,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:45:16,131 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 3399 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:16,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 1851 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16048 states. [2021-12-06 23:45:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16048 to 7572. [2021-12-06 23:45:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7572 states, 7565 states have (on average 1.3688037012557832) internal successors, (10355), 7571 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:16,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 10355 transitions. [2021-12-06 23:45:16,855 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 10355 transitions. Word has length 69 [2021-12-06 23:45:16,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:16,855 INFO L470 AbstractCegarLoop]: Abstraction has 7572 states and 10355 transitions. [2021-12-06 23:45:16,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:16,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 10355 transitions. [2021-12-06 23:45:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:45:16,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:16,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:16,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 23:45:16,860 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:16,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:16,860 INFO L85 PathProgramCache]: Analyzing trace with hash 80806030, now seen corresponding path program 1 times [2021-12-06 23:45:16,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:16,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955207130] [2021-12-06 23:45:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:16,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:16,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:16,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955207130] [2021-12-06 23:45:16,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955207130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:16,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:16,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:45:16,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030789730] [2021-12-06 23:45:16,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:16,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:45:16,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:16,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:45:16,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:45:16,961 INFO L87 Difference]: Start difference. First operand 7572 states and 10355 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:19,808 INFO L93 Difference]: Finished difference Result 24651 states and 34492 transitions. [2021-12-06 23:45:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 23:45:19,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-06 23:45:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:19,829 INFO L225 Difference]: With dead ends: 24651 [2021-12-06 23:45:19,829 INFO L226 Difference]: Without dead ends: 19596 [2021-12-06 23:45:19,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 23:45:19,838 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 3423 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:19,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3423 Valid, 2589 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 23:45:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19596 states. [2021-12-06 23:45:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19596 to 7437. [2021-12-06 23:45:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7437 states, 7430 states have (on average 1.3682368775235532) internal successors, (10166), 7436 states have internal predecessors, (10166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7437 states to 7437 states and 10166 transitions. [2021-12-06 23:45:20,632 INFO L78 Accepts]: Start accepts. Automaton has 7437 states and 10166 transitions. Word has length 69 [2021-12-06 23:45:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:20,632 INFO L470 AbstractCegarLoop]: Abstraction has 7437 states and 10166 transitions. [2021-12-06 23:45:20,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7437 states and 10166 transitions. [2021-12-06 23:45:20,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:45:20,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:20,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:20,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 23:45:20,637 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1560265185, now seen corresponding path program 1 times [2021-12-06 23:45:20,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526664167] [2021-12-06 23:45:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:20,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:20,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:20,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526664167] [2021-12-06 23:45:20,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526664167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:20,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:20,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:45:20,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969853507] [2021-12-06 23:45:20,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:20,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:45:20,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:20,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:45:20,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:45:20,717 INFO L87 Difference]: Start difference. First operand 7437 states and 10166 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:23,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:23,599 INFO L93 Difference]: Finished difference Result 24344 states and 34067 transitions. [2021-12-06 23:45:23,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 23:45:23,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-06 23:45:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:23,619 INFO L225 Difference]: With dead ends: 24344 [2021-12-06 23:45:23,619 INFO L226 Difference]: Without dead ends: 19513 [2021-12-06 23:45:23,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 23:45:23,626 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 3649 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:23,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3649 Valid, 2160 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:23,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19513 states. [2021-12-06 23:45:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19513 to 7413. [2021-12-06 23:45:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 7406 states have (on average 1.3674048069133136) internal successors, (10127), 7412 states have internal predecessors, (10127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 10127 transitions. [2021-12-06 23:45:24,491 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 10127 transitions. Word has length 69 [2021-12-06 23:45:24,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:24,491 INFO L470 AbstractCegarLoop]: Abstraction has 7413 states and 10127 transitions. [2021-12-06 23:45:24,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 10127 transitions. [2021-12-06 23:45:24,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:45:24,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:24,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:24,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 23:45:24,495 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1474423363, now seen corresponding path program 1 times [2021-12-06 23:45:24,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:24,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617668932] [2021-12-06 23:45:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:24,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:24,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:24,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617668932] [2021-12-06 23:45:24,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617668932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:24,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:24,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:45:24,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793972761] [2021-12-06 23:45:24,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:24,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:45:24,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:24,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:45:24,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:45:24,586 INFO L87 Difference]: Start difference. First operand 7413 states and 10127 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:27,681 INFO L93 Difference]: Finished difference Result 24149 states and 33784 transitions. [2021-12-06 23:45:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 23:45:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-06 23:45:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:27,699 INFO L225 Difference]: With dead ends: 24149 [2021-12-06 23:45:27,700 INFO L226 Difference]: Without dead ends: 19351 [2021-12-06 23:45:27,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 23:45:27,708 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 3584 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:27,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 2192 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19351 states. [2021-12-06 23:45:28,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19351 to 7404. [2021-12-06 23:45:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7404 states, 7397 states have (on average 1.3667703122887658) internal successors, (10110), 7403 states have internal predecessors, (10110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7404 states to 7404 states and 10110 transitions. [2021-12-06 23:45:28,623 INFO L78 Accepts]: Start accepts. Automaton has 7404 states and 10110 transitions. Word has length 69 [2021-12-06 23:45:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:28,624 INFO L470 AbstractCegarLoop]: Abstraction has 7404 states and 10110 transitions. [2021-12-06 23:45:28,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7404 states and 10110 transitions. [2021-12-06 23:45:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 23:45:28,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:28,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:28,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 23:45:28,628 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:28,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash -688548458, now seen corresponding path program 1 times [2021-12-06 23:45:28,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:28,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916613975] [2021-12-06 23:45:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:28,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:28,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:28,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916613975] [2021-12-06 23:45:28,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916613975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:28,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:28,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 23:45:28,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647281195] [2021-12-06 23:45:28,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:28,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:45:28,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:45:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:45:28,871 INFO L87 Difference]: Start difference. First operand 7404 states and 10110 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:34,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:34,689 INFO L93 Difference]: Finished difference Result 36619 states and 51613 transitions. [2021-12-06 23:45:34,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 23:45:34,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-06 23:45:34,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:34,723 INFO L225 Difference]: With dead ends: 36619 [2021-12-06 23:45:34,723 INFO L226 Difference]: Without dead ends: 31824 [2021-12-06 23:45:34,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2021-12-06 23:45:34,733 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 3808 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3808 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:34,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3808 Valid, 5560 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 23:45:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31824 states. [2021-12-06 23:45:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31824 to 7390. [2021-12-06 23:45:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 7384 states have (on average 1.3657908992416035) internal successors, (10085), 7389 states have internal predecessors, (10085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 10085 transitions. [2021-12-06 23:45:35,877 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 10085 transitions. Word has length 70 [2021-12-06 23:45:35,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:35,877 INFO L470 AbstractCegarLoop]: Abstraction has 7390 states and 10085 transitions. [2021-12-06 23:45:35,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 10085 transitions. [2021-12-06 23:45:35,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 23:45:35,881 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:35,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:35,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 23:45:35,881 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1142484158, now seen corresponding path program 1 times [2021-12-06 23:45:35,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:35,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249353748] [2021-12-06 23:45:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:35,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:36,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:36,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249353748] [2021-12-06 23:45:36,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249353748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:36,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:36,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:45:36,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305880371] [2021-12-06 23:45:36,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:36,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:45:36,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:36,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:45:36,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:45:36,082 INFO L87 Difference]: Start difference. First operand 7390 states and 10085 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:44,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:44,689 INFO L93 Difference]: Finished difference Result 45271 states and 63572 transitions. [2021-12-06 23:45:44,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 23:45:44,690 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-06 23:45:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:44,732 INFO L225 Difference]: With dead ends: 45271 [2021-12-06 23:45:44,732 INFO L226 Difference]: Without dead ends: 40214 [2021-12-06 23:45:44,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2021-12-06 23:45:44,744 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 5762 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5762 SdHoareTripleChecker+Valid, 4594 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:44,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5762 Valid, 4594 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 23:45:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40214 states. [2021-12-06 23:45:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40214 to 7141. [2021-12-06 23:45:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7141 states, 7136 states have (on average 1.3628082959641257) internal successors, (9725), 7140 states have internal predecessors, (9725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7141 states to 7141 states and 9725 transitions. [2021-12-06 23:45:46,144 INFO L78 Accepts]: Start accepts. Automaton has 7141 states and 9725 transitions. Word has length 70 [2021-12-06 23:45:46,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:46,145 INFO L470 AbstractCegarLoop]: Abstraction has 7141 states and 9725 transitions. [2021-12-06 23:45:46,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 7141 states and 9725 transitions. [2021-12-06 23:45:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 23:45:46,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:46,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:46,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 23:45:46,149 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:46,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:46,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1346201798, now seen corresponding path program 1 times [2021-12-06 23:45:46,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:46,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162154631] [2021-12-06 23:45:46,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:46,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:46,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:46,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162154631] [2021-12-06 23:45:46,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162154631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:46,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:46,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:45:46,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863120618] [2021-12-06 23:45:46,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:46,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:45:46,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:45:46,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:46,185 INFO L87 Difference]: Start difference. First operand 7141 states and 9725 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:47,431 INFO L93 Difference]: Finished difference Result 10863 states and 14917 transitions. [2021-12-06 23:45:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:45:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-06 23:45:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:47,437 INFO L225 Difference]: With dead ends: 10863 [2021-12-06 23:45:47,437 INFO L226 Difference]: Without dead ends: 7147 [2021-12-06 23:45:47,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:47,441 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 427 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:47,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1356 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:45:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7147 states. [2021-12-06 23:45:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7147 to 7141. [2021-12-06 23:45:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7141 states, 7136 states have (on average 1.3531390134529149) internal successors, (9656), 7140 states have internal predecessors, (9656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7141 states to 7141 states and 9656 transitions. [2021-12-06 23:45:48,673 INFO L78 Accepts]: Start accepts. Automaton has 7141 states and 9656 transitions. Word has length 70 [2021-12-06 23:45:48,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:48,673 INFO L470 AbstractCegarLoop]: Abstraction has 7141 states and 9656 transitions. [2021-12-06 23:45:48,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7141 states and 9656 transitions. [2021-12-06 23:45:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-06 23:45:48,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:48,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:48,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 23:45:48,677 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1360936426, now seen corresponding path program 1 times [2021-12-06 23:45:48,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:48,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146868271] [2021-12-06 23:45:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:48,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:48,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:48,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146868271] [2021-12-06 23:45:48,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146868271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:48,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:48,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 23:45:48,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77012029] [2021-12-06 23:45:48,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:48,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:45:48,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:45:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:45:48,868 INFO L87 Difference]: Start difference. First operand 7141 states and 9656 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:55,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:55,000 INFO L93 Difference]: Finished difference Result 30021 states and 41668 transitions. [2021-12-06 23:45:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 23:45:55,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-12-06 23:45:55,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:55,028 INFO L225 Difference]: With dead ends: 30021 [2021-12-06 23:45:55,028 INFO L226 Difference]: Without dead ends: 24961 [2021-12-06 23:45:55,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-12-06 23:45:55,035 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 4011 mSDsluCounter, 4905 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4011 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:55,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4011 Valid, 5829 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 23:45:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24961 states. [2021-12-06 23:45:56,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24961 to 6856. [2021-12-06 23:45:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 6853 states have (on average 1.3544433094994892) internal successors, (9282), 6855 states have internal predecessors, (9282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:56,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 9282 transitions. [2021-12-06 23:45:56,502 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 9282 transitions. Word has length 70 [2021-12-06 23:45:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:56,502 INFO L470 AbstractCegarLoop]: Abstraction has 6856 states and 9282 transitions. [2021-12-06 23:45:56,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:56,502 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 9282 transitions. [2021-12-06 23:45:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 23:45:56,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:56,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:45:56,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 23:45:56,506 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:45:56,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash -452169058, now seen corresponding path program 1 times [2021-12-06 23:45:56,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:56,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507842981] [2021-12-06 23:45:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:56,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:45:56,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:56,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507842981] [2021-12-06 23:45:56,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507842981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:56,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:56,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:45:56,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143988351] [2021-12-06 23:45:56,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:56,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:45:56,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:45:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:56,537 INFO L87 Difference]: Start difference. First operand 6856 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:45:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:58,670 INFO L93 Difference]: Finished difference Result 13940 states and 19100 transitions. [2021-12-06 23:45:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:45:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-06 23:45:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:58,679 INFO L225 Difference]: With dead ends: 13940 [2021-12-06 23:45:58,679 INFO L226 Difference]: Without dead ends: 9715 [2021-12-06 23:45:58,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:45:58,683 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 380 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:58,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 526 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:45:58,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2021-12-06 23:46:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 9686. [2021-12-06 23:46:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9686 states, 9685 states have (on average 1.3751161590087764) internal successors, (13318), 9685 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9686 states to 9686 states and 13318 transitions. [2021-12-06 23:46:00,789 INFO L78 Accepts]: Start accepts. Automaton has 9686 states and 13318 transitions. Word has length 72 [2021-12-06 23:46:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:46:00,789 INFO L470 AbstractCegarLoop]: Abstraction has 9686 states and 13318 transitions. [2021-12-06 23:46:00,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9686 states and 13318 transitions. [2021-12-06 23:46:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-06 23:46:00,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:46:00,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:46:00,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 23:46:00,798 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:46:00,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:46:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash -786160929, now seen corresponding path program 1 times [2021-12-06 23:46:00,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:46:00,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566948647] [2021-12-06 23:46:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:46:00,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:46:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:46:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:46:00,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:46:00,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566948647] [2021-12-06 23:46:00,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566948647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:46:00,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:46:00,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:46:00,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356016567] [2021-12-06 23:46:00,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:46:00,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:46:00,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:46:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:46:00,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:46:00,847 INFO L87 Difference]: Start difference. First operand 9686 states and 13318 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:46:09,680 INFO L93 Difference]: Finished difference Result 43788 states and 61665 transitions. [2021-12-06 23:46:09,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:46:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2021-12-06 23:46:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:46:09,718 INFO L225 Difference]: With dead ends: 43788 [2021-12-06 23:46:09,718 INFO L226 Difference]: Without dead ends: 35929 [2021-12-06 23:46:09,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:46:09,728 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 2043 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:46:09,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2043 Valid, 1218 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:46:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35929 states. [2021-12-06 23:46:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35929 to 17543. [2021-12-06 23:46:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17543 states, 17542 states have (on average 1.3789761714741762) internal successors, (24190), 17542 states have internal predecessors, (24190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17543 states to 17543 states and 24190 transitions. [2021-12-06 23:46:14,107 INFO L78 Accepts]: Start accepts. Automaton has 17543 states and 24190 transitions. Word has length 86 [2021-12-06 23:46:14,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:46:14,107 INFO L470 AbstractCegarLoop]: Abstraction has 17543 states and 24190 transitions. [2021-12-06 23:46:14,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17543 states and 24190 transitions. [2021-12-06 23:46:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-06 23:46:14,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:46:14,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:46:14,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 23:46:14,116 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:46:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:46:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash 623918678, now seen corresponding path program 1 times [2021-12-06 23:46:14,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:46:14,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978255639] [2021-12-06 23:46:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:46:14,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:46:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:46:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:46:14,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:46:14,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978255639] [2021-12-06 23:46:14,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978255639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:46:14,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:46:14,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:46:14,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678688052] [2021-12-06 23:46:14,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:46:14,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:46:14,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:46:14,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:46:14,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:46:14,178 INFO L87 Difference]: Start difference. First operand 17543 states and 24190 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:46:19,025 INFO L93 Difference]: Finished difference Result 28217 states and 38845 transitions. [2021-12-06 23:46:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:46:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2021-12-06 23:46:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:46:19,043 INFO L225 Difference]: With dead ends: 28217 [2021-12-06 23:46:19,043 INFO L226 Difference]: Without dead ends: 18623 [2021-12-06 23:46:19,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:46:19,052 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 1027 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:46:19,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 1331 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:46:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18623 states. [2021-12-06 23:46:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18623 to 13367. [2021-12-06 23:46:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 1.3563519377525064) internal successors, (18129), 13366 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 18129 transitions. [2021-12-06 23:46:22,674 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 18129 transitions. Word has length 87 [2021-12-06 23:46:22,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:46:22,674 INFO L470 AbstractCegarLoop]: Abstraction has 13367 states and 18129 transitions. [2021-12-06 23:46:22,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 18129 transitions. [2021-12-06 23:46:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-06 23:46:22,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:46:22,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:46:22,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 23:46:22,683 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:46:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:46:22,683 INFO L85 PathProgramCache]: Analyzing trace with hash 803271302, now seen corresponding path program 1 times [2021-12-06 23:46:22,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:46:22,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825698568] [2021-12-06 23:46:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:46:22,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:46:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:46:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:46:22,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:46:22,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825698568] [2021-12-06 23:46:22,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825698568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:46:22,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:46:22,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:46:22,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776285895] [2021-12-06 23:46:22,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:46:22,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:46:22,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:46:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:46:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:46:22,728 INFO L87 Difference]: Start difference. First operand 13367 states and 18129 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:29,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:46:29,627 INFO L93 Difference]: Finished difference Result 36039 states and 49333 transitions. [2021-12-06 23:46:29,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:46:29,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-12-06 23:46:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:46:29,650 INFO L225 Difference]: With dead ends: 36039 [2021-12-06 23:46:29,650 INFO L226 Difference]: Without dead ends: 24333 [2021-12-06 23:46:29,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:46:29,659 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 154 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:46:29,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 883 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:46:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24333 states. [2021-12-06 23:46:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24333 to 22915. [2021-12-06 23:46:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22915 states, 22914 states have (on average 1.3585144453172733) internal successors, (31129), 22914 states have internal predecessors, (31129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22915 states to 22915 states and 31129 transitions. [2021-12-06 23:46:36,009 INFO L78 Accepts]: Start accepts. Automaton has 22915 states and 31129 transitions. Word has length 88 [2021-12-06 23:46:36,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:46:36,009 INFO L470 AbstractCegarLoop]: Abstraction has 22915 states and 31129 transitions. [2021-12-06 23:46:36,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 22915 states and 31129 transitions. [2021-12-06 23:46:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 23:46:36,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:46:36,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:46:36,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 23:46:36,017 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:46:36,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:46:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 195252509, now seen corresponding path program 1 times [2021-12-06 23:46:36,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:46:36,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110505313] [2021-12-06 23:46:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:46:36,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:46:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:46:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:46:36,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:46:36,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110505313] [2021-12-06 23:46:36,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110505313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:46:36,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:46:36,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:46:36,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944499338] [2021-12-06 23:46:36,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:46:36,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:46:36,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:46:36,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:46:36,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:46:36,054 INFO L87 Difference]: Start difference. First operand 22915 states and 31129 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:46:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:46:48,376 INFO L93 Difference]: Finished difference Result 64023 states and 87227 transitions. [2021-12-06 23:46:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:46:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-12-06 23:46:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:46:48,426 INFO L225 Difference]: With dead ends: 64023 [2021-12-06 23:46:48,426 INFO L226 Difference]: Without dead ends: 42769 [2021-12-06 23:46:48,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:46:48,443 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 142 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:46:48,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 872 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:46:48,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2021-12-06 23:46:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 39903. [2021-12-06 23:46:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39903 states, 39902 states have (on average 1.3475264397774547) internal successors, (53769), 39902 states have internal predecessors, (53769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39903 states to 39903 states and 53769 transitions. [2021-12-06 23:47:00,028 INFO L78 Accepts]: Start accepts. Automaton has 39903 states and 53769 transitions. Word has length 89 [2021-12-06 23:47:00,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:47:00,028 INFO L470 AbstractCegarLoop]: Abstraction has 39903 states and 53769 transitions. [2021-12-06 23:47:00,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 39903 states and 53769 transitions. [2021-12-06 23:47:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 23:47:00,034 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:47:00,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:47:00,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 23:47:00,035 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:47:00,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:47:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1615072029, now seen corresponding path program 1 times [2021-12-06 23:47:00,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:47:00,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919900874] [2021-12-06 23:47:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:47:00,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:47:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:47:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:47:00,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:47:00,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919900874] [2021-12-06 23:47:00,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919900874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:47:00,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:47:00,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:47:00,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956095739] [2021-12-06 23:47:00,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:47:00,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:47:00,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:47:00,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:47:00,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:47:00,071 INFO L87 Difference]: Start difference. First operand 39903 states and 53769 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:47:09,577 INFO L93 Difference]: Finished difference Result 55708 states and 75098 transitions. [2021-12-06 23:47:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:47:09,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-12-06 23:47:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:47:09,614 INFO L225 Difference]: With dead ends: 55708 [2021-12-06 23:47:09,614 INFO L226 Difference]: Without dead ends: 32513 [2021-12-06 23:47:09,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:47:09,630 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 241 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:47:09,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 917 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:47:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32513 states. [2021-12-06 23:47:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32513 to 32511. [2021-12-06 23:47:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32511 states, 32510 states have (on average 1.340479852353122) internal successors, (43579), 32510 states have internal predecessors, (43579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32511 states to 32511 states and 43579 transitions. [2021-12-06 23:47:19,307 INFO L78 Accepts]: Start accepts. Automaton has 32511 states and 43579 transitions. Word has length 90 [2021-12-06 23:47:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:47:19,307 INFO L470 AbstractCegarLoop]: Abstraction has 32511 states and 43579 transitions. [2021-12-06 23:47:19,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 32511 states and 43579 transitions. [2021-12-06 23:47:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 23:47:19,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:47:19,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:47:19,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 23:47:19,314 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:47:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:47:19,314 INFO L85 PathProgramCache]: Analyzing trace with hash -992280540, now seen corresponding path program 1 times [2021-12-06 23:47:19,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:47:19,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476415421] [2021-12-06 23:47:19,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:47:19,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:47:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:47:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:47:19,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:47:19,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476415421] [2021-12-06 23:47:19,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476415421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:47:19,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:47:19,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:47:19,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264370320] [2021-12-06 23:47:19,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:47:19,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:47:19,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:47:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:47:19,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:47:19,354 INFO L87 Difference]: Start difference. First operand 32511 states and 43579 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:47:37,577 INFO L93 Difference]: Finished difference Result 92107 states and 123429 transitions. [2021-12-06 23:47:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:47:37,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-12-06 23:47:37,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:47:37,660 INFO L225 Difference]: With dead ends: 92107 [2021-12-06 23:47:37,660 INFO L226 Difference]: Without dead ends: 61209 [2021-12-06 23:47:37,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:47:37,687 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 129 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:47:37,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 854 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:47:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61209 states. [2021-12-06 23:47:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61209 to 56775. [2021-12-06 23:47:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56775 states, 56774 states have (on average 1.322770986719273) internal successors, (75099), 56774 states have internal predecessors, (75099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56775 states to 56775 states and 75099 transitions. [2021-12-06 23:47:54,711 INFO L78 Accepts]: Start accepts. Automaton has 56775 states and 75099 transitions. Word has length 90 [2021-12-06 23:47:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:47:54,711 INFO L470 AbstractCegarLoop]: Abstraction has 56775 states and 75099 transitions. [2021-12-06 23:47:54,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:47:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 56775 states and 75099 transitions. [2021-12-06 23:47:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 23:47:54,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:47:54,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:47:54,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 23:47:54,717 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:47:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:47:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1918040975, now seen corresponding path program 1 times [2021-12-06 23:47:54,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:47:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675186382] [2021-12-06 23:47:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:47:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:47:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:47:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:47:54,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:47:54,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675186382] [2021-12-06 23:47:54,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675186382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:47:54,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:47:54,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:47:54,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601696339] [2021-12-06 23:47:54,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:47:54,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:47:54,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:47:54,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:47:54,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:47:54,757 INFO L87 Difference]: Start difference. First operand 56775 states and 75099 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:48:07,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:48:07,538 INFO L93 Difference]: Finished difference Result 69751 states and 92387 transitions. [2021-12-06 23:48:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:48:07,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-06 23:48:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:48:07,592 INFO L225 Difference]: With dead ends: 69751 [2021-12-06 23:48:07,592 INFO L226 Difference]: Without dead ends: 46418 [2021-12-06 23:48:07,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:48:07,610 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 198 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:48:07,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 885 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:48:07,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46418 states. [2021-12-06 23:48:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46418 to 46416. [2021-12-06 23:48:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46416 states, 46415 states have (on average 1.3234299256705806) internal successors, (61427), 46415 states have internal predecessors, (61427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:48:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46416 states to 46416 states and 61427 transitions. [2021-12-06 23:48:20,372 INFO L78 Accepts]: Start accepts. Automaton has 46416 states and 61427 transitions. Word has length 91 [2021-12-06 23:48:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:48:20,373 INFO L470 AbstractCegarLoop]: Abstraction has 46416 states and 61427 transitions. [2021-12-06 23:48:20,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:48:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 46416 states and 61427 transitions. [2021-12-06 23:48:20,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 23:48:20,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:48:20,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:48:20,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 23:48:20,380 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:48:20,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:48:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1248064469, now seen corresponding path program 1 times [2021-12-06 23:48:20,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:48:20,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053300087] [2021-12-06 23:48:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:48:20,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:48:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:48:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:48:20,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:48:20,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053300087] [2021-12-06 23:48:20,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053300087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:48:20,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:48:20,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:48:20,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725292142] [2021-12-06 23:48:20,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:48:20,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:48:20,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:48:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:48:20,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:48:20,422 INFO L87 Difference]: Start difference. First operand 46416 states and 61427 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:48:45,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:48:45,199 INFO L93 Difference]: Finished difference Result 132468 states and 175077 transitions. [2021-12-06 23:48:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:48:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-12-06 23:48:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:48:45,312 INFO L225 Difference]: With dead ends: 132468 [2021-12-06 23:48:45,312 INFO L226 Difference]: Without dead ends: 87602 [2021-12-06 23:48:45,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:48:45,344 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 107 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:48:45,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 834 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:48:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87602 states. [2021-12-06 23:49:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87602 to 81968. [2021-12-06 23:49:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81968 states, 81967 states have (on average 1.310808008100821) internal successors, (107443), 81967 states have internal predecessors, (107443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:49:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81968 states to 81968 states and 107443 transitions. [2021-12-06 23:49:08,752 INFO L78 Accepts]: Start accepts. Automaton has 81968 states and 107443 transitions. Word has length 92 [2021-12-06 23:49:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:49:08,752 INFO L470 AbstractCegarLoop]: Abstraction has 81968 states and 107443 transitions. [2021-12-06 23:49:08,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:49:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 81968 states and 107443 transitions. [2021-12-06 23:49:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 23:49:08,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:49:08,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:49:08,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 23:49:08,758 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:49:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:49:08,758 INFO L85 PathProgramCache]: Analyzing trace with hash -290315974, now seen corresponding path program 1 times [2021-12-06 23:49:08,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:49:08,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720828150] [2021-12-06 23:49:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:49:08,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:49:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:49:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:49:08,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:49:08,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720828150] [2021-12-06 23:49:08,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720828150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:49:08,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:49:08,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:49:08,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740667798] [2021-12-06 23:49:08,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:49:08,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:49:08,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:49:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:49:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:49:08,809 INFO L87 Difference]: Start difference. First operand 81968 states and 107443 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:50:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:50:01,782 INFO L93 Difference]: Finished difference Result 175116 states and 226726 transitions. [2021-12-06 23:50:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:50:01,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2021-12-06 23:50:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:50:02,045 INFO L225 Difference]: With dead ends: 175116 [2021-12-06 23:50:02,046 INFO L226 Difference]: Without dead ends: 175114 [2021-12-06 23:50:02,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:50:02,081 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 451 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:50:02,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2132 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:50:02,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175114 states. [2021-12-06 23:50:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175114 to 88208. [2021-12-06 23:50:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88208 states, 88207 states have (on average 1.2888206151439228) internal successors, (113683), 88207 states have internal predecessors, (113683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:50:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88208 states to 88208 states and 113683 transitions. [2021-12-06 23:50:29,554 INFO L78 Accepts]: Start accepts. Automaton has 88208 states and 113683 transitions. Word has length 94 [2021-12-06 23:50:29,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:50:29,554 INFO L470 AbstractCegarLoop]: Abstraction has 88208 states and 113683 transitions. [2021-12-06 23:50:29,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:50:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 88208 states and 113683 transitions. [2021-12-06 23:50:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 23:50:29,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:50:29,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:50:29,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 23:50:29,559 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:50:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:50:29,560 INFO L85 PathProgramCache]: Analyzing trace with hash 95243205, now seen corresponding path program 1 times [2021-12-06 23:50:29,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:50:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390006404] [2021-12-06 23:50:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:50:29,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:50:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:50:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:50:29,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:50:29,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390006404] [2021-12-06 23:50:29,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390006404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:50:29,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:50:29,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:50:29,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120137384] [2021-12-06 23:50:29,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:50:29,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:50:29,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:50:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:50:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:50:29,594 INFO L87 Difference]: Start difference. First operand 88208 states and 113683 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:51:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:51:11,930 INFO L93 Difference]: Finished difference Result 222380 states and 285181 transitions. [2021-12-06 23:51:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:51:11,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-06 23:51:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:51:12,137 INFO L225 Difference]: With dead ends: 222380 [2021-12-06 23:51:12,138 INFO L226 Difference]: Without dead ends: 135722 [2021-12-06 23:51:12,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:51:12,201 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 325 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:51:12,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 610 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:51:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135722 states. [2021-12-06 23:51:54,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135722 to 135720. [2021-12-06 23:51:54,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135720 states, 135719 states have (on average 1.2692916982883753) internal successors, (172267), 135719 states have internal predecessors, (172267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:51:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135720 states to 135720 states and 172267 transitions. [2021-12-06 23:51:54,796 INFO L78 Accepts]: Start accepts. Automaton has 135720 states and 172267 transitions. Word has length 95 [2021-12-06 23:51:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:51:54,796 INFO L470 AbstractCegarLoop]: Abstraction has 135720 states and 172267 transitions. [2021-12-06 23:51:54,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:51:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 135720 states and 172267 transitions. [2021-12-06 23:51:54,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 23:51:54,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:51:54,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:51:54,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 23:51:54,802 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:51:54,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:51:54,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1137070122, now seen corresponding path program 1 times [2021-12-06 23:51:54,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:51:54,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916759634] [2021-12-06 23:51:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:51:54,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:51:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:51:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:51:54,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:51:54,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916759634] [2021-12-06 23:51:54,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916759634] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:51:54,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:51:54,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:51:54,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398485869] [2021-12-06 23:51:54,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:51:54,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:51:54,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:51:54,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:51:54,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:51:54,854 INFO L87 Difference]: Start difference. First operand 135720 states and 172267 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:52:52,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:52:52,127 INFO L93 Difference]: Finished difference Result 211170 states and 269192 transitions. [2021-12-06 23:52:52,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:52:52,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2021-12-06 23:52:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:52:52,398 INFO L225 Difference]: With dead ends: 211170 [2021-12-06 23:52:52,398 INFO L226 Difference]: Without dead ends: 181756 [2021-12-06 23:52:52,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:52:52,450 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 1583 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:52:52,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 1305 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:52:52,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181756 states. [2021-12-06 23:53:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181756 to 155876. [2021-12-06 23:53:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155876 states, 155875 states have (on average 1.2671884522854853) internal successors, (197523), 155875 states have internal predecessors, (197523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:53:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155876 states to 155876 states and 197523 transitions. [2021-12-06 23:53:42,676 INFO L78 Accepts]: Start accepts. Automaton has 155876 states and 197523 transitions. Word has length 97 [2021-12-06 23:53:42,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:53:42,677 INFO L470 AbstractCegarLoop]: Abstraction has 155876 states and 197523 transitions. [2021-12-06 23:53:42,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:53:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 155876 states and 197523 transitions. [2021-12-06 23:53:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 23:53:42,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:42,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:42,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 23:53:42,682 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:53:42,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash -66918083, now seen corresponding path program 1 times [2021-12-06 23:53:42,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:42,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877305968] [2021-12-06 23:53:42,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:42,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:53:42,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:42,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877305968] [2021-12-06 23:53:42,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877305968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:42,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:53:42,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:53:42,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065448095] [2021-12-06 23:53:42,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:42,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:53:42,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:53:42,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:53:42,714 INFO L87 Difference]: Start difference. First operand 155876 states and 197523 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:54:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:54:52,301 INFO L93 Difference]: Finished difference Result 309321 states and 391949 transitions. [2021-12-06 23:54:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:54:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 23:54:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:54:52,681 INFO L225 Difference]: With dead ends: 309321 [2021-12-06 23:54:52,681 INFO L226 Difference]: Without dead ends: 220024 [2021-12-06 23:54:52,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:54:52,771 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 375 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:54:52,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 567 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:54:52,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220024 states. [2021-12-06 23:55:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220024 to 153484. [2021-12-06 23:55:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153484 states, 153483 states have (on average 1.264198640891825) internal successors, (194033), 153483 states have internal predecessors, (194033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:55:42,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153484 states to 153484 states and 194033 transitions. [2021-12-06 23:55:42,560 INFO L78 Accepts]: Start accepts. Automaton has 153484 states and 194033 transitions. Word has length 98 [2021-12-06 23:55:42,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:55:42,560 INFO L470 AbstractCegarLoop]: Abstraction has 153484 states and 194033 transitions. [2021-12-06 23:55:42,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:55:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 153484 states and 194033 transitions. [2021-12-06 23:55:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 23:55:42,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:55:42,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:55:42,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 23:55:42,565 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:55:42,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:55:42,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1368723189, now seen corresponding path program 1 times [2021-12-06 23:55:42,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:55:42,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607420928] [2021-12-06 23:55:42,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:55:42,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:55:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:55:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:55:42,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:55:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607420928] [2021-12-06 23:55:42,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607420928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:55:42,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:55:42,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:55:42,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534947982] [2021-12-06 23:55:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:55:42,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:55:42,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:55:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:55:42,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:55:42,617 INFO L87 Difference]: Start difference. First operand 153484 states and 194033 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:56:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:44,479 INFO L93 Difference]: Finished difference Result 216890 states and 275230 transitions. [2021-12-06 23:56:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:56:44,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 23:56:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:44,759 INFO L225 Difference]: With dead ends: 216890 [2021-12-06 23:56:44,759 INFO L226 Difference]: Without dead ends: 188340 [2021-12-06 23:56:44,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:56:44,816 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 1583 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:44,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 1287 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:56:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188340 states. [2021-12-06 23:57:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188340 to 173160. [2021-12-06 23:57:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173160 states, 173159 states have (on average 1.2622445267066684) internal successors, (218569), 173159 states have internal predecessors, (218569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:57:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173160 states to 173160 states and 218569 transitions. [2021-12-06 23:57:40,406 INFO L78 Accepts]: Start accepts. Automaton has 173160 states and 218569 transitions. Word has length 99 [2021-12-06 23:57:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:40,407 INFO L470 AbstractCegarLoop]: Abstraction has 173160 states and 218569 transitions. [2021-12-06 23:57:40,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:57:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 173160 states and 218569 transitions. [2021-12-06 23:57:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 23:57:40,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:40,428 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:40,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 23:57:40,428 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-12-06 23:57:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:40,429 INFO L85 PathProgramCache]: Analyzing trace with hash 279266524, now seen corresponding path program 1 times [2021-12-06 23:57:40,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:57:40,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399474455] [2021-12-06 23:57:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:40,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:57:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-06 23:57:40,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:57:40,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399474455] [2021-12-06 23:57:40,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399474455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:57:40,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:57:40,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:57:40,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701755028] [2021-12-06 23:57:40,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:40,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:57:40,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:57:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:57:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:57:40,503 INFO L87 Difference]: Start difference. First operand 173160 states and 218569 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)