./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-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_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/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_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/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_3730428a-cf23-4276-bb4b-de09c7c2342f/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 b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:40:48,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:40:48,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:40:48,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:40:48,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:40:48,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:40:48,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:40:48,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:40:48,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:40:48,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:40:48,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:40:48,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:40:48,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:40:48,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:40:48,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:40:48,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:40:48,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:40:48,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:40:48,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:40:48,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:40:48,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:40:48,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:40:48,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:40:48,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:40:48,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:40:48,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:40:48,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:40:48,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:40:48,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:40:48,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:40:48,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:40:48,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:40:48,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:40:48,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:40:48,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:40:48,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:40:48,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:40:48,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:40:48,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:40:48,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:40:48,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:40:48,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:40:48,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:40:48,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:40:48,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:40:48,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:40:48,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:40:48,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:40:48,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:40:48,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:40:48,905 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:40:48,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:40:48,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:40:48,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:40:48,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:40:48,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:40:48,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:40:48,909 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_3730428a-cf23-4276-bb4b-de09c7c2342f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c [2021-12-07 00:40:49,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:40:49,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:40:49,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:40:49,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:40:49,117 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:40:49,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:40:49,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/data/19e30b41e/8dd02d4995694cbb954ca654a5ddabd7/FLAGc43741af2 [2021-12-07 00:40:49,813 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:40:49,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:40:49,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/data/19e30b41e/8dd02d4995694cbb954ca654a5ddabd7/FLAGc43741af2 [2021-12-07 00:40:50,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/data/19e30b41e/8dd02d4995694cbb954ca654a5ddabd7 [2021-12-07 00:40:50,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:40:50,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:40:50,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:40:50,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:40:50,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:40:50,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:40:50" (1/1) ... [2021-12-07 00:40:50,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a0443b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:50, skipping insertion in model container [2021-12-07 00:40:50,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:40:50" (1/1) ... [2021-12-07 00:40:50,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:40:50,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:40:50,795 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2021-12-07 00:40:50,898 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2021-12-07 00:40:50,942 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2021-12-07 00:40:50,963 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2021-12-07 00:40:50,977 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2021-12-07 00:40:50,986 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2021-12-07 00:40:51,059 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2021-12-07 00:40:51,095 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2021-12-07 00:40:51,115 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2021-12-07 00:40:51,125 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2021-12-07 00:40:51,134 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2021-12-07 00:40:51,171 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2021-12-07 00:40:51,189 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2021-12-07 00:40:51,206 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2021-12-07 00:40:51,216 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2021-12-07 00:40:51,227 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2021-12-07 00:40:51,236 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2021-12-07 00:40:51,246 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2021-12-07 00:40:51,256 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2021-12-07 00:40:51,266 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2021-12-07 00:40:51,276 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2021-12-07 00:40:51,286 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2021-12-07 00:40:51,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:40:51,341 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:40:51,558 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2021-12-07 00:40:51,626 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2021-12-07 00:40:51,668 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2021-12-07 00:40:51,685 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2021-12-07 00:40:51,694 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2021-12-07 00:40:51,703 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2021-12-07 00:40:51,765 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2021-12-07 00:40:51,797 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2021-12-07 00:40:51,813 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2021-12-07 00:40:51,822 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2021-12-07 00:40:51,830 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2021-12-07 00:40:51,864 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2021-12-07 00:40:51,880 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2021-12-07 00:40:51,889 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2021-12-07 00:40:51,897 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2021-12-07 00:40:51,906 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2021-12-07 00:40:51,914 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2021-12-07 00:40:51,923 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2021-12-07 00:40:51,931 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2021-12-07 00:40:51,939 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2021-12-07 00:40:51,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2021-12-07 00:40:51,956 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_3730428a-cf23-4276-bb4b-de09c7c2342f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2021-12-07 00:40:51,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:40:52,003 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:40:52,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52 WrapperNode [2021-12-07 00:40:52,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:40:52,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:40:52,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:40:52,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:40:52,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,203 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11455 [2021-12-07 00:40:52,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:40:52,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:40:52,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:40:52,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:40:52,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:40:52,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:40:52,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:40:52,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:40:52,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (1/1) ... [2021-12-07 00:40:52,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:40:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:40:52,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:40:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3730428a-cf23-4276-bb4b-de09c7c2342f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:40:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:40:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:40:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:40:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:40:52,744 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:40:52,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:40:55,532 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:40:55,562 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:40:55,563 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 00:40:55,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:40:55 BoogieIcfgContainer [2021-12-07 00:40:55,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:40:55,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:40:55,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:40:55,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:40:55,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:40:50" (1/3) ... [2021-12-07 00:40:55,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61377111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:40:55, skipping insertion in model container [2021-12-07 00:40:55,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:40:52" (2/3) ... [2021-12-07 00:40:55,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61377111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:40:55, skipping insertion in model container [2021-12-07 00:40:55,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:40:55" (3/3) ... [2021-12-07 00:40:55,575 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-07 00:40:55,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:40:55,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-07 00:40:55,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:40:55,631 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 [2021-12-07 00:40:55,631 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-07 00:40:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-07 00:40:55,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:55,710 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] [2021-12-07 00:40:55,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 945954769, now seen corresponding path program 1 times [2021-12-07 00:40:55,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:55,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012819032] [2021-12-07 00:40:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:55,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:56,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:56,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012819032] [2021-12-07 00:40:56,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012819032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:56,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:56,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:56,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021516099] [2021-12-07 00:40:56,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:56,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:56,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:56,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:56,084 INFO L87 Difference]: Start difference. First operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:57,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:57,074 INFO L93 Difference]: Finished difference Result 2546 states and 4528 transitions. [2021-12-07 00:40:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:57,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 [2021-12-07 00:40:57,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:57,097 INFO L225 Difference]: With dead ends: 2546 [2021-12-07 00:40:57,098 INFO L226 Difference]: Without dead ends: 1401 [2021-12-07 00:40:57,104 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 [2021-12-07 00:40:57,108 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 7221 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:57,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7221 Valid, 1445 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:40:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2021-12-07 00:40:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2021-12-07 00:40:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1379 states have (on average 1.3038433647570704) internal successors, (1798), 1400 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:57,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1798 transitions. [2021-12-07 00:40:57,204 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1798 transitions. Word has length 86 [2021-12-07 00:40:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:57,205 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 1798 transitions. [2021-12-07 00:40:57,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1798 transitions. [2021-12-07 00:40:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-07 00:40:57,210 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:57,210 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] [2021-12-07 00:40:57,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:40:57,210 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash -340795257, now seen corresponding path program 1 times [2021-12-07 00:40:57,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:57,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402231592] [2021-12-07 00:40:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:57,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:57,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:57,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402231592] [2021-12-07 00:40:57,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402231592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:57,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:57,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:57,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603221142] [2021-12-07 00:40:57,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:57,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:57,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:57,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:57,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:57,361 INFO L87 Difference]: Start difference. First operand 1401 states and 1798 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:57,814 INFO L93 Difference]: Finished difference Result 1672 states and 2149 transitions. [2021-12-07 00:40:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 [2021-12-07 00:40:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:57,820 INFO L225 Difference]: With dead ends: 1672 [2021-12-07 00:40:57,821 INFO L226 Difference]: Without dead ends: 969 [2021-12-07 00:40:57,822 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 [2021-12-07 00:40:57,823 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 3649 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:57,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3649 Valid, 654 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:40:57,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2021-12-07 00:40:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2021-12-07 00:40:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3231256599788808) internal successors, (1253), 968 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1253 transitions. [2021-12-07 00:40:57,863 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1253 transitions. Word has length 86 [2021-12-07 00:40:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:57,864 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1253 transitions. [2021-12-07 00:40:57,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1253 transitions. [2021-12-07 00:40:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-07 00:40:57,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:57,867 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] [2021-12-07 00:40:57,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:40:57,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1383981291, now seen corresponding path program 1 times [2021-12-07 00:40:57,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770068001] [2021-12-07 00:40:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:57,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:57,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:57,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770068001] [2021-12-07 00:40:57,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770068001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:57,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:57,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:57,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781293160] [2021-12-07 00:40:57,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:57,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:57,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:57,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:57,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:57,950 INFO L87 Difference]: Start difference. First operand 969 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:58,307 INFO L93 Difference]: Finished difference Result 1343 states and 1758 transitions. [2021-12-07 00:40:58,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:58,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 [2021-12-07 00:40:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:58,311 INFO L225 Difference]: With dead ends: 1343 [2021-12-07 00:40:58,312 INFO L226 Difference]: Without dead ends: 828 [2021-12-07 00:40:58,312 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 [2021-12-07 00:40:58,313 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 3206 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3206 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:58,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3206 Valid, 571 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:40:58,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2021-12-07 00:40:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2021-12-07 00:40:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 806 states have (on average 1.3535980148883375) internal successors, (1091), 827 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1091 transitions. [2021-12-07 00:40:58,338 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1091 transitions. Word has length 86 [2021-12-07 00:40:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:58,339 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1091 transitions. [2021-12-07 00:40:58,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-07 00:40:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1091 transitions. [2021-12-07 00:40:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-07 00:40:58,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:58,341 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] [2021-12-07 00:40:58,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:40:58,341 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:58,341 INFO L85 PathProgramCache]: Analyzing trace with hash -100915319, now seen corresponding path program 1 times [2021-12-07 00:40:58,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:58,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317401988] [2021-12-07 00:40:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:58,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:58,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:58,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317401988] [2021-12-07 00:40:58,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317401988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:58,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:58,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:58,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370508442] [2021-12-07 00:40:58,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:58,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:58,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:58,413 INFO L87 Difference]: Start difference. First operand 828 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2021-12-07 00:40:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:58,740 INFO L93 Difference]: Finished difference Result 1171 states and 1548 transitions. [2021-12-07 00:40:58,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:58,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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 [2021-12-07 00:40:58,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:58,744 INFO L225 Difference]: With dead ends: 1171 [2021-12-07 00:40:58,744 INFO L226 Difference]: Without dead ends: 727 [2021-12-07 00:40:58,745 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 [2021-12-07 00:40:58,746 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 2823 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:58,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2823 Valid, 528 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:40:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-12-07 00:40:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2021-12-07 00:40:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 705 states have (on average 1.371631205673759) internal successors, (967), 726 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:58,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 967 transitions. [2021-12-07 00:40:58,775 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 967 transitions. Word has length 87 [2021-12-07 00:40:58,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:58,776 INFO L470 AbstractCegarLoop]: Abstraction has 727 states and 967 transitions. [2021-12-07 00:40:58,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2021-12-07 00:40:58,776 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 967 transitions. [2021-12-07 00:40:58,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-07 00:40:58,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:58,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:40:58,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:40:58,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:58,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash -881369892, now seen corresponding path program 1 times [2021-12-07 00:40:58,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:58,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502888628] [2021-12-07 00:40:58,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:58,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:58,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:58,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502888628] [2021-12-07 00:40:58,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502888628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:58,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:58,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:58,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867759993] [2021-12-07 00:40:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:58,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:58,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:58,870 INFO L87 Difference]: Start difference. First operand 727 states and 967 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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) [2021-12-07 00:40:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:59,145 INFO L93 Difference]: Finished difference Result 1038 states and 1379 transitions. [2021-12-07 00:40:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:59,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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 [2021-12-07 00:40:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:59,149 INFO L225 Difference]: With dead ends: 1038 [2021-12-07 00:40:59,149 INFO L226 Difference]: Without dead ends: 646 [2021-12-07 00:40:59,150 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 [2021-12-07 00:40:59,150 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 2497 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:59,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2497 Valid, 495 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:40:59,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-12-07 00:40:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2021-12-07 00:40:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3814102564102564) internal successors, (862), 645 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 862 transitions. [2021-12-07 00:40:59,175 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 862 transitions. Word has length 88 [2021-12-07 00:40:59,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:59,175 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 862 transitions. [2021-12-07 00:40:59,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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) [2021-12-07 00:40:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 862 transitions. [2021-12-07 00:40:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-07 00:40:59,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:59,177 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] [2021-12-07 00:40:59,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:40:59,177 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:59,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -15019222, now seen corresponding path program 1 times [2021-12-07 00:40:59,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:59,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787945548] [2021-12-07 00:40:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:59,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:59,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:59,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787945548] [2021-12-07 00:40:59,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787945548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:59,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:59,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:40:59,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232709013] [2021-12-07 00:40:59,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:59,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:40:59,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:40:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:40:59,248 INFO L87 Difference]: Start difference. First operand 646 states and 862 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2021-12-07 00:40:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:59,592 INFO L93 Difference]: Finished difference Result 992 states and 1329 transitions. [2021-12-07 00:40:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:40:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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 [2021-12-07 00:40:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:59,595 INFO L225 Difference]: With dead ends: 992 [2021-12-07 00:40:59,595 INFO L226 Difference]: Without dead ends: 638 [2021-12-07 00:40:59,595 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 [2021-12-07 00:40:59,596 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 2350 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:59,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2350 Valid, 420 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:40:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-12-07 00:40:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2021-12-07 00:40:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3831168831168832) internal successors, (852), 637 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 852 transitions. [2021-12-07 00:40:59,616 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 852 transitions. Word has length 89 [2021-12-07 00:40:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:59,616 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 852 transitions. [2021-12-07 00:40:59,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2021-12-07 00:40:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 852 transitions. [2021-12-07 00:40:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-07 00:40:59,618 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:59,618 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] [2021-12-07 00:40:59,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:40:59,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:40:59,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1223915583, now seen corresponding path program 1 times [2021-12-07 00:40:59,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:59,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145598] [2021-12-07 00:40:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:59,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:59,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:59,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145598] [2021-12-07 00:40:59,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:59,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:59,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:40:59,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224328951] [2021-12-07 00:40:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:59,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:40:59,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:59,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:40:59,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:40:59,723 INFO L87 Difference]: Start difference. First operand 638 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2021-12-07 00:41:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:00,622 INFO L93 Difference]: Finished difference Result 1329 states and 1815 transitions. [2021-12-07 00:41:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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 [2021-12-07 00:41:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:00,627 INFO L225 Difference]: With dead ends: 1329 [2021-12-07 00:41:00,627 INFO L226 Difference]: Without dead ends: 1137 [2021-12-07 00:41:00,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:00,628 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 4080 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:00,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4080 Valid, 2126 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-12-07 00:41:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 638. [2021-12-07 00:41:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3814935064935066) internal successors, (851), 637 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 851 transitions. [2021-12-07 00:41:00,657 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 851 transitions. Word has length 90 [2021-12-07 00:41:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:00,658 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 851 transitions. [2021-12-07 00:41:00,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2021-12-07 00:41:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 851 transitions. [2021-12-07 00:41:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-07 00:41:00,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:00,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:00,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:41:00,660 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash -774148364, now seen corresponding path program 1 times [2021-12-07 00:41:00,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:00,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488681810] [2021-12-07 00:41:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:00,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:00,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:00,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488681810] [2021-12-07 00:41:00,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488681810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:00,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:00,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:00,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291490091] [2021-12-07 00:41:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:00,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:00,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:00,783 INFO L87 Difference]: Start difference. First operand 638 states and 851 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2021-12-07 00:41:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:01,709 INFO L93 Difference]: Finished difference Result 1256 states and 1718 transitions. [2021-12-07 00:41:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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 [2021-12-07 00:41:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:01,714 INFO L225 Difference]: With dead ends: 1256 [2021-12-07 00:41:01,715 INFO L226 Difference]: Without dead ends: 1132 [2021-12-07 00:41:01,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:41:01,716 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 4717 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:01,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4717 Valid, 2584 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-07 00:41:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2021-12-07 00:41:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.37987012987013) internal successors, (850), 637 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 850 transitions. [2021-12-07 00:41:01,762 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 850 transitions. Word has length 90 [2021-12-07 00:41:01,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:01,762 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 850 transitions. [2021-12-07 00:41:01,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2021-12-07 00:41:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 850 transitions. [2021-12-07 00:41:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-07 00:41:01,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:01,764 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] [2021-12-07 00:41:01,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:41:01,764 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1127184379, now seen corresponding path program 1 times [2021-12-07 00:41:01,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:01,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410611737] [2021-12-07 00:41:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:01,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:01,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:01,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410611737] [2021-12-07 00:41:01,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410611737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:01,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:01,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:41:01,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572022228] [2021-12-07 00:41:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:01,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:41:01,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:01,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:41:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:41:01,890 INFO L87 Difference]: Start difference. First operand 638 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2021-12-07 00:41:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:02,495 INFO L93 Difference]: Finished difference Result 1201 states and 1560 transitions. [2021-12-07 00:41:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:41:02,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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 [2021-12-07 00:41:02,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:02,499 INFO L225 Difference]: With dead ends: 1201 [2021-12-07 00:41:02,499 INFO L226 Difference]: Without dead ends: 855 [2021-12-07 00:41:02,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:41:02,500 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 4785 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:02,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4785 Valid, 1024 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:41:02,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2021-12-07 00:41:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 638. [2021-12-07 00:41:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3782467532467533) internal successors, (849), 637 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:02,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 849 transitions. [2021-12-07 00:41:02,533 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 849 transitions. Word has length 90 [2021-12-07 00:41:02,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:02,533 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 849 transitions. [2021-12-07 00:41:02,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2021-12-07 00:41:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 849 transitions. [2021-12-07 00:41:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:02,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:02,534 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] [2021-12-07 00:41:02,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:41:02,535 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:02,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:02,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1374831072, now seen corresponding path program 1 times [2021-12-07 00:41:02,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:02,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080170567] [2021-12-07 00:41:02,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:02,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:02,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:02,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:02,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080170567] [2021-12-07 00:41:02,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080170567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:02,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:02,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:02,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289394822] [2021-12-07 00:41:02,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:02,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:02,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:02,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:02,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:02,638 INFO L87 Difference]: Start difference. First operand 638 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:03,477 INFO L93 Difference]: Finished difference Result 1224 states and 1662 transitions. [2021-12-07 00:41:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:03,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:03,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:03,481 INFO L225 Difference]: With dead ends: 1224 [2021-12-07 00:41:03,481 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:03,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:41:03,482 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 4780 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4780 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:03,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4780 Valid, 2412 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:03,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2021-12-07 00:41:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3766233766233766) internal successors, (848), 637 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 848 transitions. [2021-12-07 00:41:03,517 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 848 transitions. Word has length 92 [2021-12-07 00:41:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:03,517 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 848 transitions. [2021-12-07 00:41:03,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 848 transitions. [2021-12-07 00:41:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:03,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:03,519 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] [2021-12-07 00:41:03,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:41:03,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:03,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1581467239, now seen corresponding path program 1 times [2021-12-07 00:41:03,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:03,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626651684] [2021-12-07 00:41:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:03,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:03,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626651684] [2021-12-07 00:41:03,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626651684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:03,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:03,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:03,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955504007] [2021-12-07 00:41:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:03,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:03,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:03,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:03,623 INFO L87 Difference]: Start difference. First operand 638 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:04,475 INFO L93 Difference]: Finished difference Result 1270 states and 1726 transitions. [2021-12-07 00:41:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:04,480 INFO L225 Difference]: With dead ends: 1270 [2021-12-07 00:41:04,480 INFO L226 Difference]: Without dead ends: 1132 [2021-12-07 00:41:04,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:04,481 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 3230 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:04,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3230 Valid, 3300 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:04,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-07 00:41:04,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2021-12-07 00:41:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.375) internal successors, (847), 637 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 847 transitions. [2021-12-07 00:41:04,523 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 847 transitions. Word has length 92 [2021-12-07 00:41:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:04,523 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 847 transitions. [2021-12-07 00:41:04,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 847 transitions. [2021-12-07 00:41:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:04,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:04,524 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] [2021-12-07 00:41:04,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:41:04,525 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:04,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:04,525 INFO L85 PathProgramCache]: Analyzing trace with hash 510204798, now seen corresponding path program 1 times [2021-12-07 00:41:04,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:04,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973823395] [2021-12-07 00:41:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:04,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:04,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:04,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973823395] [2021-12-07 00:41:04,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973823395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:04,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:04,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:04,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342991256] [2021-12-07 00:41:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:04,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:04,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:04,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:04,635 INFO L87 Difference]: Start difference. First operand 638 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:05,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:05,490 INFO L93 Difference]: Finished difference Result 1359 states and 1835 transitions. [2021-12-07 00:41:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:05,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:05,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:05,495 INFO L225 Difference]: With dead ends: 1359 [2021-12-07 00:41:05,495 INFO L226 Difference]: Without dead ends: 1137 [2021-12-07 00:41:05,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:05,496 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 3457 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3457 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:05,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3457 Valid, 2857 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-12-07 00:41:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 638. [2021-12-07 00:41:05,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3733766233766234) internal successors, (846), 637 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 846 transitions. [2021-12-07 00:41:05,533 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 846 transitions. Word has length 92 [2021-12-07 00:41:05,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:05,533 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 846 transitions. [2021-12-07 00:41:05,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 846 transitions. [2021-12-07 00:41:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:05,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:05,534 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] [2021-12-07 00:41:05,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:41:05,535 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:05,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:05,535 INFO L85 PathProgramCache]: Analyzing trace with hash -496473703, now seen corresponding path program 1 times [2021-12-07 00:41:05,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:05,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951119777] [2021-12-07 00:41:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:05,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:05,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:05,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951119777] [2021-12-07 00:41:05,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951119777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:05,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:05,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:05,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452583699] [2021-12-07 00:41:05,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:05,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:05,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:05,693 INFO L87 Difference]: Start difference. First operand 638 states and 846 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 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) [2021-12-07 00:41:07,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:07,444 INFO L93 Difference]: Finished difference Result 1773 states and 2464 transitions. [2021-12-07 00:41:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:07,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 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 [2021-12-07 00:41:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:07,450 INFO L225 Difference]: With dead ends: 1773 [2021-12-07 00:41:07,450 INFO L226 Difference]: Without dead ends: 1674 [2021-12-07 00:41:07,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:07,451 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 6676 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6676 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:07,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6676 Valid, 3581 Invalid, 3566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:41:07,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2021-12-07 00:41:07,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 642. [2021-12-07 00:41:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3709677419354838) internal successors, (850), 641 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 850 transitions. [2021-12-07 00:41:07,495 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 850 transitions. Word has length 92 [2021-12-07 00:41:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:07,496 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 850 transitions. [2021-12-07 00:41:07,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 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) [2021-12-07 00:41:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 850 transitions. [2021-12-07 00:41:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:07,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:07,497 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] [2021-12-07 00:41:07,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:41:07,497 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2138746040, now seen corresponding path program 1 times [2021-12-07 00:41:07,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:07,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679316430] [2021-12-07 00:41:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:07,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:07,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:07,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679316430] [2021-12-07 00:41:07,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679316430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:07,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:07,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:07,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498651446] [2021-12-07 00:41:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:07,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:07,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:07,592 INFO L87 Difference]: Start difference. First operand 642 states and 850 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:08,464 INFO L93 Difference]: Finished difference Result 1219 states and 1654 transitions. [2021-12-07 00:41:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:08,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:08,469 INFO L225 Difference]: With dead ends: 1219 [2021-12-07 00:41:08,469 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:08,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:41:08,470 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 4671 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:08,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 2491 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:08,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 642. [2021-12-07 00:41:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3693548387096774) internal successors, (849), 641 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 849 transitions. [2021-12-07 00:41:08,521 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 849 transitions. Word has length 92 [2021-12-07 00:41:08,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:08,521 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 849 transitions. [2021-12-07 00:41:08,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:08,521 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 849 transitions. [2021-12-07 00:41:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:08,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:08,522 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] [2021-12-07 00:41:08,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:41:08,522 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1951823708, now seen corresponding path program 1 times [2021-12-07 00:41:08,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:08,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550261893] [2021-12-07 00:41:08,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:08,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:08,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:08,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550261893] [2021-12-07 00:41:08,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550261893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:08,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:08,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:08,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564764213] [2021-12-07 00:41:08,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:08,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:08,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:08,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:08,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:08,612 INFO L87 Difference]: Start difference. First operand 642 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:09,487 INFO L93 Difference]: Finished difference Result 1224 states and 1658 transitions. [2021-12-07 00:41:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:09,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:09,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:09,492 INFO L225 Difference]: With dead ends: 1224 [2021-12-07 00:41:09,492 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:09,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:41:09,493 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 4620 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:09,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4620 Valid, 2521 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 642. [2021-12-07 00:41:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.367741935483871) internal successors, (848), 641 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 848 transitions. [2021-12-07 00:41:09,538 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 848 transitions. Word has length 92 [2021-12-07 00:41:09,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:09,538 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 848 transitions. [2021-12-07 00:41:09,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 848 transitions. [2021-12-07 00:41:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:09,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:09,539 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] [2021-12-07 00:41:09,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:41:09,539 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:09,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -761353428, now seen corresponding path program 1 times [2021-12-07 00:41:09,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:09,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906949613] [2021-12-07 00:41:09,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:09,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:09,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:09,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906949613] [2021-12-07 00:41:09,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906949613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:09,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:09,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:09,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982729283] [2021-12-07 00:41:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:09,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:09,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:09,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:09,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:09,622 INFO L87 Difference]: Start difference. First operand 642 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:10,420 INFO L93 Difference]: Finished difference Result 1160 states and 1549 transitions. [2021-12-07 00:41:10,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:10,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:10,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:10,424 INFO L225 Difference]: With dead ends: 1160 [2021-12-07 00:41:10,424 INFO L226 Difference]: Without dead ends: 1081 [2021-12-07 00:41:10,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:10,425 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 3527 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:10,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3527 Valid, 2112 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:41:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-12-07 00:41:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 642. [2021-12-07 00:41:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3661290322580646) internal successors, (847), 641 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 847 transitions. [2021-12-07 00:41:10,473 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 847 transitions. Word has length 92 [2021-12-07 00:41:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:10,473 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 847 transitions. [2021-12-07 00:41:10,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 847 transitions. [2021-12-07 00:41:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:41:10,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:10,475 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] [2021-12-07 00:41:10,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:41:10,475 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:10,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1774714757, now seen corresponding path program 1 times [2021-12-07 00:41:10,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:10,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257889888] [2021-12-07 00:41:10,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:10,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:10,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:10,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257889888] [2021-12-07 00:41:10,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257889888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:10,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:10,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:10,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15800041] [2021-12-07 00:41:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:10,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:10,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:10,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:10,559 INFO L87 Difference]: Start difference. First operand 642 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:11,666 INFO L93 Difference]: Finished difference Result 1274 states and 1725 transitions. [2021-12-07 00:41:11,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:11,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2021-12-07 00:41:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:11,670 INFO L225 Difference]: With dead ends: 1274 [2021-12-07 00:41:11,670 INFO L226 Difference]: Without dead ends: 1136 [2021-12-07 00:41:11,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:11,671 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 2843 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:11,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 3673 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:41:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2021-12-07 00:41:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 642. [2021-12-07 00:41:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.364516129032258) internal successors, (846), 641 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 846 transitions. [2021-12-07 00:41:11,724 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 846 transitions. Word has length 92 [2021-12-07 00:41:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:11,724 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 846 transitions. [2021-12-07 00:41:11,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2021-12-07 00:41:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 846 transitions. [2021-12-07 00:41:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-07 00:41:11,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:11,726 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] [2021-12-07 00:41:11,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:41:11,726 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2061707208, now seen corresponding path program 1 times [2021-12-07 00:41:11,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136044358] [2021-12-07 00:41:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:11,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:11,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:11,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136044358] [2021-12-07 00:41:11,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136044358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:11,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:11,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:11,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638359758] [2021-12-07 00:41:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:11,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:11,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:11,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:11,806 INFO L87 Difference]: Start difference. First operand 642 states and 846 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:12,711 INFO L93 Difference]: Finished difference Result 1224 states and 1653 transitions. [2021-12-07 00:41:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-07 00:41:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:12,716 INFO L225 Difference]: With dead ends: 1224 [2021-12-07 00:41:12,716 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:12,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:12,717 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 3937 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3937 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:12,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3937 Valid, 2865 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:12,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2021-12-07 00:41:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3652597402597402) internal successors, (841), 637 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 841 transitions. [2021-12-07 00:41:12,768 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 841 transitions. Word has length 93 [2021-12-07 00:41:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:12,768 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 841 transitions. [2021-12-07 00:41:12,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 841 transitions. [2021-12-07 00:41:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:12,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:12,769 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] [2021-12-07 00:41:12,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:41:12,769 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1776369767, now seen corresponding path program 1 times [2021-12-07 00:41:12,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320284822] [2021-12-07 00:41:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:12,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:12,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:12,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320284822] [2021-12-07 00:41:12,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320284822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:12,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:12,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:12,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312375443] [2021-12-07 00:41:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:12,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:12,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:12,861 INFO L87 Difference]: Start difference. First operand 638 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:13,757 INFO L93 Difference]: Finished difference Result 1233 states and 1661 transitions. [2021-12-07 00:41:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:13,762 INFO L225 Difference]: With dead ends: 1233 [2021-12-07 00:41:13,762 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:13,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:41:13,763 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 4636 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4636 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:13,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4636 Valid, 2635 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:13,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2021-12-07 00:41:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3636363636363635) internal successors, (840), 637 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 840 transitions. [2021-12-07 00:41:13,815 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 840 transitions. Word has length 94 [2021-12-07 00:41:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:13,816 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 840 transitions. [2021-12-07 00:41:13,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 840 transitions. [2021-12-07 00:41:13,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:13,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:13,817 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] [2021-12-07 00:41:13,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:41:13,817 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash -583554037, now seen corresponding path program 1 times [2021-12-07 00:41:13,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:13,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013528061] [2021-12-07 00:41:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:13,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:13,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013528061] [2021-12-07 00:41:13,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013528061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:13,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:13,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:13,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433483220] [2021-12-07 00:41:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:13,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:13,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:13,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:13,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:13,913 INFO L87 Difference]: Start difference. First operand 638 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:14,908 INFO L93 Difference]: Finished difference Result 1195 states and 1606 transitions. [2021-12-07 00:41:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:14,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:14,912 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:14,912 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:14,913 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 [2021-12-07 00:41:14,913 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 3832 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:14,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3832 Valid, 3223 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:14,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2021-12-07 00:41:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3620129870129871) internal successors, (839), 637 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 839 transitions. [2021-12-07 00:41:14,970 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 839 transitions. Word has length 94 [2021-12-07 00:41:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:14,970 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 839 transitions. [2021-12-07 00:41:14,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 839 transitions. [2021-12-07 00:41:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:14,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:14,972 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] [2021-12-07 00:41:14,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:41:14,972 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash -912166993, now seen corresponding path program 1 times [2021-12-07 00:41:14,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:14,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196796070] [2021-12-07 00:41:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:14,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:15,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:15,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196796070] [2021-12-07 00:41:15,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196796070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:15,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:15,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:15,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345746583] [2021-12-07 00:41:15,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:15,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:15,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:15,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:15,070 INFO L87 Difference]: Start difference. First operand 638 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:16,004 INFO L93 Difference]: Finished difference Result 1285 states and 1728 transitions. [2021-12-07 00:41:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:16,008 INFO L225 Difference]: With dead ends: 1285 [2021-12-07 00:41:16,008 INFO L226 Difference]: Without dead ends: 1132 [2021-12-07 00:41:16,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:16,009 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 3041 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:16,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3041 Valid, 3106 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-07 00:41:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2021-12-07 00:41:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3603896103896105) internal successors, (838), 637 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 838 transitions. [2021-12-07 00:41:16,067 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 838 transitions. Word has length 94 [2021-12-07 00:41:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:16,067 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 838 transitions. [2021-12-07 00:41:16,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 838 transitions. [2021-12-07 00:41:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:16,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:16,068 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] [2021-12-07 00:41:16,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:41:16,068 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 108575604, now seen corresponding path program 1 times [2021-12-07 00:41:16,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:16,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404178629] [2021-12-07 00:41:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:16,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:16,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:16,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404178629] [2021-12-07 00:41:16,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404178629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:16,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:16,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:16,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018738801] [2021-12-07 00:41:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:16,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:16,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:16,161 INFO L87 Difference]: Start difference. First operand 638 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:17,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:17,343 INFO L93 Difference]: Finished difference Result 1195 states and 1603 transitions. [2021-12-07 00:41:17,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:17,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:17,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:17,348 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:17,348 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:17,349 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 [2021-12-07 00:41:17,349 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 3822 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:17,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3822 Valid, 3225 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 00:41:17,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2021-12-07 00:41:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3587662337662338) internal successors, (837), 637 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 837 transitions. [2021-12-07 00:41:17,408 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 837 transitions. Word has length 94 [2021-12-07 00:41:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:17,409 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 837 transitions. [2021-12-07 00:41:17,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 837 transitions. [2021-12-07 00:41:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:17,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:17,410 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] [2021-12-07 00:41:17,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:41:17,410 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:17,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash -905490814, now seen corresponding path program 1 times [2021-12-07 00:41:17,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324707451] [2021-12-07 00:41:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:17,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:17,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:17,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324707451] [2021-12-07 00:41:17,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324707451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:17,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:17,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:17,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258751601] [2021-12-07 00:41:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:17,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:17,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:17,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:17,501 INFO L87 Difference]: Start difference. First operand 638 states and 837 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:18,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:18,434 INFO L93 Difference]: Finished difference Result 1233 states and 1654 transitions. [2021-12-07 00:41:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:18,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:18,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:18,438 INFO L225 Difference]: With dead ends: 1233 [2021-12-07 00:41:18,438 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:18,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:18,439 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 2931 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:18,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2931 Valid, 3152 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2021-12-07 00:41:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3571428571428572) internal successors, (836), 637 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 836 transitions. [2021-12-07 00:41:18,500 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 836 transitions. Word has length 94 [2021-12-07 00:41:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:18,500 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 836 transitions. [2021-12-07 00:41:18,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 836 transitions. [2021-12-07 00:41:18,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:18,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:18,501 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] [2021-12-07 00:41:18,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 00:41:18,501 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:18,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:18,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1059388859, now seen corresponding path program 1 times [2021-12-07 00:41:18,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:18,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625455842] [2021-12-07 00:41:18,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:18,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:18,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:18,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625455842] [2021-12-07 00:41:18,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625455842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:18,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:18,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:18,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792586667] [2021-12-07 00:41:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:18,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:18,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:18,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:18,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:18,622 INFO L87 Difference]: Start difference. First operand 638 states and 836 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:20,427 INFO L93 Difference]: Finished difference Result 1651 states and 2267 transitions. [2021-12-07 00:41:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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 [2021-12-07 00:41:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:20,433 INFO L225 Difference]: With dead ends: 1651 [2021-12-07 00:41:20,433 INFO L226 Difference]: Without dead ends: 1565 [2021-12-07 00:41:20,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:20,434 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 5988 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5988 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:20,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5988 Valid, 3238 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:41:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-12-07 00:41:20,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 642. [2021-12-07 00:41:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3548387096774193) internal successors, (840), 641 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 840 transitions. [2021-12-07 00:41:20,502 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 840 transitions. Word has length 94 [2021-12-07 00:41:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:20,502 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 840 transitions. [2021-12-07 00:41:20,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 840 transitions. [2021-12-07 00:41:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:20,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:20,503 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] [2021-12-07 00:41:20,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 00:41:20,504 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:20,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:20,504 INFO L85 PathProgramCache]: Analyzing trace with hash 389206872, now seen corresponding path program 1 times [2021-12-07 00:41:20,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:20,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302836111] [2021-12-07 00:41:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:20,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:20,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:20,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302836111] [2021-12-07 00:41:20,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302836111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:20,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:20,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:20,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891021156] [2021-12-07 00:41:20,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:20,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:20,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:20,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:20,592 INFO L87 Difference]: Start difference. First operand 642 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:21,635 INFO L93 Difference]: Finished difference Result 1191 states and 1597 transitions. [2021-12-07 00:41:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:21,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:21,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:21,638 INFO L225 Difference]: With dead ends: 1191 [2021-12-07 00:41:21,638 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:21,638 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 [2021-12-07 00:41:21,639 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 3784 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3784 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:21,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3784 Valid, 3292 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:21,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:21,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2021-12-07 00:41:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.353225806451613) internal successors, (839), 641 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 839 transitions. [2021-12-07 00:41:21,707 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 839 transitions. Word has length 94 [2021-12-07 00:41:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:21,707 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 839 transitions. [2021-12-07 00:41:21,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 839 transitions. [2021-12-07 00:41:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:21,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:21,708 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] [2021-12-07 00:41:21,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 00:41:21,708 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:21,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash -66481708, now seen corresponding path program 1 times [2021-12-07 00:41:21,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:21,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980463943] [2021-12-07 00:41:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:21,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:21,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:21,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980463943] [2021-12-07 00:41:21,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980463943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:21,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:21,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:21,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981682728] [2021-12-07 00:41:21,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:21,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:21,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:21,840 INFO L87 Difference]: Start difference. First operand 642 states and 839 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:23,839 INFO L93 Difference]: Finished difference Result 1651 states and 2265 transitions. [2021-12-07 00:41:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:23,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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 [2021-12-07 00:41:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:23,841 INFO L225 Difference]: With dead ends: 1651 [2021-12-07 00:41:23,841 INFO L226 Difference]: Without dead ends: 1565 [2021-12-07 00:41:23,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:23,842 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 5941 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 3220 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 3893 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 3220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:23,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5941 Valid, 3893 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 3220 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:41:23,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-12-07 00:41:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 646. [2021-12-07 00:41:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3509615384615385) internal successors, (843), 645 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 843 transitions. [2021-12-07 00:41:23,914 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 843 transitions. Word has length 94 [2021-12-07 00:41:23,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:23,914 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 843 transitions. [2021-12-07 00:41:23,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 843 transitions. [2021-12-07 00:41:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:23,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:23,915 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] [2021-12-07 00:41:23,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 00:41:23,916 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1010519460, now seen corresponding path program 1 times [2021-12-07 00:41:23,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:23,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114330514] [2021-12-07 00:41:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:23,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:23,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114330514] [2021-12-07 00:41:23,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114330514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:23,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:23,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:23,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696220509] [2021-12-07 00:41:23,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:23,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:23,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:23,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:23,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:23,996 INFO L87 Difference]: Start difference. First operand 646 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:25,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:25,069 INFO L93 Difference]: Finished difference Result 1191 states and 1595 transitions. [2021-12-07 00:41:25,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:25,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:25,070 INFO L225 Difference]: With dead ends: 1191 [2021-12-07 00:41:25,070 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:25,071 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 [2021-12-07 00:41:25,071 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 3697 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 2811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:25,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3697 Valid, 3478 Invalid, 2811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 646. [2021-12-07 00:41:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3493589743589745) internal successors, (842), 645 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 842 transitions. [2021-12-07 00:41:25,154 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 842 transitions. Word has length 94 [2021-12-07 00:41:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:25,155 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 842 transitions. [2021-12-07 00:41:25,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 842 transitions. [2021-12-07 00:41:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:25,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:25,155 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] [2021-12-07 00:41:25,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 00:41:25,156 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash -4191139, now seen corresponding path program 1 times [2021-12-07 00:41:25,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:25,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079875026] [2021-12-07 00:41:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:25,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:25,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:25,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079875026] [2021-12-07 00:41:25,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079875026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:25,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:25,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:25,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427927912] [2021-12-07 00:41:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:25,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:25,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:25,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:25,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:25,280 INFO L87 Difference]: Start difference. First operand 646 states and 842 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:27,200 INFO L93 Difference]: Finished difference Result 1643 states and 2257 transitions. [2021-12-07 00:41:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:27,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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 [2021-12-07 00:41:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:27,202 INFO L225 Difference]: With dead ends: 1643 [2021-12-07 00:41:27,202 INFO L226 Difference]: Without dead ends: 1561 [2021-12-07 00:41:27,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:27,203 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 5340 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5340 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:27,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5340 Valid, 3400 Invalid, 3464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:41:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-12-07 00:41:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 650. [2021-12-07 00:41:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3471337579617835) internal successors, (846), 649 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 846 transitions. [2021-12-07 00:41:27,279 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 846 transitions. Word has length 94 [2021-12-07 00:41:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:27,279 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 846 transitions. [2021-12-07 00:41:27,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 846 transitions. [2021-12-07 00:41:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:27,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:27,280 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] [2021-12-07 00:41:27,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 00:41:27,281 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:27,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1834155361, now seen corresponding path program 1 times [2021-12-07 00:41:27,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:27,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245467943] [2021-12-07 00:41:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:27,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:27,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:27,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245467943] [2021-12-07 00:41:27,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245467943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:27,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:27,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:27,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812530991] [2021-12-07 00:41:27,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:27,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:27,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:27,387 INFO L87 Difference]: Start difference. First operand 650 states and 846 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:29,192 INFO L93 Difference]: Finished difference Result 1651 states and 2264 transitions. [2021-12-07 00:41:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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 [2021-12-07 00:41:29,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:29,194 INFO L225 Difference]: With dead ends: 1651 [2021-12-07 00:41:29,194 INFO L226 Difference]: Without dead ends: 1565 [2021-12-07 00:41:29,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:29,195 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 6092 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6092 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 3224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:29,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6092 Valid, 3162 Invalid, 3224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 00:41:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-12-07 00:41:29,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 654. [2021-12-07 00:41:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3449367088607596) internal successors, (850), 653 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 850 transitions. [2021-12-07 00:41:29,274 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 850 transitions. Word has length 94 [2021-12-07 00:41:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:29,274 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 850 transitions. [2021-12-07 00:41:29,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 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) [2021-12-07 00:41:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 850 transitions. [2021-12-07 00:41:29,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:29,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:29,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:29,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 00:41:29,275 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash -472603347, now seen corresponding path program 1 times [2021-12-07 00:41:29,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:29,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92999592] [2021-12-07 00:41:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:29,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:29,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:29,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92999592] [2021-12-07 00:41:29,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92999592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:29,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:29,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:29,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371927666] [2021-12-07 00:41:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:29,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:29,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:29,352 INFO L87 Difference]: Start difference. First operand 654 states and 850 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:30,466 INFO L93 Difference]: Finished difference Result 1191 states and 1592 transitions. [2021-12-07 00:41:30,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:30,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:30,468 INFO L225 Difference]: With dead ends: 1191 [2021-12-07 00:41:30,468 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:30,469 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 [2021-12-07 00:41:30,469 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 3815 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2476 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:30,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3815 Valid, 3203 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2476 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 654. [2021-12-07 00:41:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3433544303797469) internal successors, (849), 653 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 849 transitions. [2021-12-07 00:41:30,557 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 849 transitions. Word has length 94 [2021-12-07 00:41:30,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:30,557 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 849 transitions. [2021-12-07 00:41:30,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 849 transitions. [2021-12-07 00:41:30,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:30,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:30,558 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] [2021-12-07 00:41:30,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 00:41:30,558 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1148206016, now seen corresponding path program 1 times [2021-12-07 00:41:30,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:30,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377771345] [2021-12-07 00:41:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:30,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:30,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:30,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377771345] [2021-12-07 00:41:30,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377771345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:30,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:30,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:30,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580021690] [2021-12-07 00:41:30,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:30,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:30,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:30,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:30,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:30,625 INFO L87 Difference]: Start difference. First operand 654 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:31,574 INFO L93 Difference]: Finished difference Result 1253 states and 1669 transitions. [2021-12-07 00:41:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:31,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:31,575 INFO L225 Difference]: With dead ends: 1253 [2021-12-07 00:41:31,575 INFO L226 Difference]: Without dead ends: 1145 [2021-12-07 00:41:31,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:31,576 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 4116 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:31,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4116 Valid, 3097 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2021-12-07 00:41:31,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 654. [2021-12-07 00:41:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3417721518987342) internal successors, (848), 653 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 848 transitions. [2021-12-07 00:41:31,655 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 848 transitions. Word has length 94 [2021-12-07 00:41:31,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:31,656 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 848 transitions. [2021-12-07 00:41:31,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 848 transitions. [2021-12-07 00:41:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-07 00:41:31,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:31,657 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] [2021-12-07 00:41:31,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 00:41:31,657 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:31,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:31,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1262668072, now seen corresponding path program 1 times [2021-12-07 00:41:31,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:31,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173276728] [2021-12-07 00:41:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:31,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:31,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:31,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173276728] [2021-12-07 00:41:31,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173276728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:31,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:31,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:31,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077834566] [2021-12-07 00:41:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:31,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:31,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:31,732 INFO L87 Difference]: Start difference. First operand 654 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:32,774 INFO L93 Difference]: Finished difference Result 1195 states and 1594 transitions. [2021-12-07 00:41:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:32,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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 [2021-12-07 00:41:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:32,776 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:32,776 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:32,776 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 [2021-12-07 00:41:32,777 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 3770 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3770 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:32,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3770 Valid, 3303 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 654. [2021-12-07 00:41:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3401898734177216) internal successors, (847), 653 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 847 transitions. [2021-12-07 00:41:32,862 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 847 transitions. Word has length 94 [2021-12-07 00:41:32,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:32,862 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 847 transitions. [2021-12-07 00:41:32,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 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) [2021-12-07 00:41:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 847 transitions. [2021-12-07 00:41:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:41:32,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:32,863 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] [2021-12-07 00:41:32,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 00:41:32,864 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1316548243, now seen corresponding path program 1 times [2021-12-07 00:41:32,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:32,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739081837] [2021-12-07 00:41:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:32,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:32,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:32,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739081837] [2021-12-07 00:41:32,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739081837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:32,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:32,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:32,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152960025] [2021-12-07 00:41:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:32,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:32,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:32,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:32,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:32,933 INFO L87 Difference]: Start difference. First operand 654 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:33,857 INFO L93 Difference]: Finished difference Result 1195 states and 1592 transitions. [2021-12-07 00:41:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:33,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-07 00:41:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:33,859 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:33,859 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:33,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:33,860 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 4045 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4045 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:33,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4045 Valid, 2869 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:41:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 650. [2021-12-07 00:41:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3407643312101911) internal successors, (842), 649 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 842 transitions. [2021-12-07 00:41:33,943 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 842 transitions. Word has length 95 [2021-12-07 00:41:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:33,943 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 842 transitions. [2021-12-07 00:41:33,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 842 transitions. [2021-12-07 00:41:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:41:33,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:33,944 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] [2021-12-07 00:41:33,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 00:41:33,944 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2144015537, now seen corresponding path program 1 times [2021-12-07 00:41:33,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:33,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699375502] [2021-12-07 00:41:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:33,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:34,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:34,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699375502] [2021-12-07 00:41:34,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699375502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:34,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:34,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:34,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570255899] [2021-12-07 00:41:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:34,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:34,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:34,009 INFO L87 Difference]: Start difference. First operand 650 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:34,917 INFO L93 Difference]: Finished difference Result 1195 states and 1591 transitions. [2021-12-07 00:41:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-07 00:41:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:34,919 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:34,919 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:34,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:34,920 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 2051 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:34,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2051 Valid, 2905 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:41:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 646. [2021-12-07 00:41:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3413461538461537) internal successors, (837), 645 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 837 transitions. [2021-12-07 00:41:35,007 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 837 transitions. Word has length 95 [2021-12-07 00:41:35,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:35,007 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 837 transitions. [2021-12-07 00:41:35,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 837 transitions. [2021-12-07 00:41:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:41:35,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:35,008 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] [2021-12-07 00:41:35,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-07 00:41:35,008 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:35,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1517880925, now seen corresponding path program 1 times [2021-12-07 00:41:35,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:35,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635484155] [2021-12-07 00:41:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:35,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:35,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:35,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635484155] [2021-12-07 00:41:35,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635484155] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:35,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:35,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:35,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035044433] [2021-12-07 00:41:35,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:35,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:35,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:35,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:35,072 INFO L87 Difference]: Start difference. First operand 646 states and 837 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:36,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:36,038 INFO L93 Difference]: Finished difference Result 1191 states and 1587 transitions. [2021-12-07 00:41:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-07 00:41:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:36,040 INFO L225 Difference]: With dead ends: 1191 [2021-12-07 00:41:36,040 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:36,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:36,040 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 3016 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:36,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3016 Valid, 2919 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2021-12-07 00:41:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3419354838709678) internal successors, (832), 641 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:36,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 832 transitions. [2021-12-07 00:41:36,123 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 832 transitions. Word has length 95 [2021-12-07 00:41:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:36,123 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 832 transitions. [2021-12-07 00:41:36,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:36,123 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 832 transitions. [2021-12-07 00:41:36,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:41:36,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:36,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:36,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-07 00:41:36,124 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:36,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:36,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1778839813, now seen corresponding path program 1 times [2021-12-07 00:41:36,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:36,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97648695] [2021-12-07 00:41:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:36,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:36,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:36,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97648695] [2021-12-07 00:41:36,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97648695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:36,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:36,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:36,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189976077] [2021-12-07 00:41:36,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:36,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:36,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:36,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:36,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:36,196 INFO L87 Difference]: Start difference. First operand 642 states and 832 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:37,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:37,290 INFO L93 Difference]: Finished difference Result 1190 states and 1585 transitions. [2021-12-07 00:41:37,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-07 00:41:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:37,291 INFO L225 Difference]: With dead ends: 1190 [2021-12-07 00:41:37,291 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:37,292 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 [2021-12-07 00:41:37,292 INFO L933 BasicCegarLoop]: 659 mSDtfsCounter, 3714 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3714 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:37,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3714 Valid, 3392 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2021-12-07 00:41:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3403225806451613) internal successors, (831), 641 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 831 transitions. [2021-12-07 00:41:37,380 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 831 transitions. Word has length 95 [2021-12-07 00:41:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:37,380 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 831 transitions. [2021-12-07 00:41:37,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 831 transitions. [2021-12-07 00:41:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-07 00:41:37,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:37,381 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] [2021-12-07 00:41:37,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-07 00:41:37,381 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:37,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash -413193078, now seen corresponding path program 1 times [2021-12-07 00:41:37,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:37,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245807044] [2021-12-07 00:41:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:37,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:37,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:37,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245807044] [2021-12-07 00:41:37,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245807044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:37,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:37,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:37,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984508299] [2021-12-07 00:41:37,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:37,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:37,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:37,445 INFO L87 Difference]: Start difference. First operand 642 states and 831 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:38,485 INFO L93 Difference]: Finished difference Result 1195 states and 1589 transitions. [2021-12-07 00:41:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:38,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-07 00:41:38,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:38,487 INFO L225 Difference]: With dead ends: 1195 [2021-12-07 00:41:38,487 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:38,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:38,487 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 2020 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:38,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2020 Valid, 2957 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2021-12-07 00:41:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3409090909090908) internal successors, (826), 637 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 826 transitions. [2021-12-07 00:41:38,569 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 826 transitions. Word has length 95 [2021-12-07 00:41:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:38,569 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 826 transitions. [2021-12-07 00:41:38,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-07 00:41:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 826 transitions. [2021-12-07 00:41:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:38,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:38,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:38,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 00:41:38,571 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1915466444, now seen corresponding path program 1 times [2021-12-07 00:41:38,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:38,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627919868] [2021-12-07 00:41:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:38,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:38,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:38,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627919868] [2021-12-07 00:41:38,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627919868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:38,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:38,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:38,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670808704] [2021-12-07 00:41:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:38,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:38,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:38,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:38,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:38,640 INFO L87 Difference]: Start difference. First operand 638 states and 826 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:39,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:39,721 INFO L93 Difference]: Finished difference Result 1200 states and 1592 transitions. [2021-12-07 00:41:39,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:39,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:39,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:39,723 INFO L225 Difference]: With dead ends: 1200 [2021-12-07 00:41:39,723 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:41:39,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:39,724 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 4068 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4068 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:39,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4068 Valid, 3277 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:41:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2021-12-07 00:41:39,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3392857142857142) internal successors, (825), 637 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 825 transitions. [2021-12-07 00:41:39,810 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 825 transitions. Word has length 96 [2021-12-07 00:41:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:39,810 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 825 transitions. [2021-12-07 00:41:39,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 825 transitions. [2021-12-07 00:41:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:39,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:39,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:39,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 00:41:39,812 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:39,812 INFO L85 PathProgramCache]: Analyzing trace with hash 747746075, now seen corresponding path program 1 times [2021-12-07 00:41:39,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:39,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449020269] [2021-12-07 00:41:39,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:39,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:39,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:39,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449020269] [2021-12-07 00:41:39,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449020269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:39,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:39,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:39,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297985040] [2021-12-07 00:41:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:39,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:39,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:39,887 INFO L87 Difference]: Start difference. First operand 638 states and 825 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:40,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:40,934 INFO L93 Difference]: Finished difference Result 1156 states and 1526 transitions. [2021-12-07 00:41:40,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:40,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:40,935 INFO L225 Difference]: With dead ends: 1156 [2021-12-07 00:41:40,935 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:41:40,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:40,936 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 3710 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:40,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3710 Valid, 3046 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:41:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 638. [2021-12-07 00:41:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3376623376623376) internal successors, (824), 637 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 824 transitions. [2021-12-07 00:41:41,025 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 824 transitions. Word has length 96 [2021-12-07 00:41:41,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:41,026 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 824 transitions. [2021-12-07 00:41:41,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 824 transitions. [2021-12-07 00:41:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:41,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:41,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:41,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 00:41:41,027 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1896440013, now seen corresponding path program 1 times [2021-12-07 00:41:41,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:41,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908385199] [2021-12-07 00:41:41,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:41,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:41,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:41,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908385199] [2021-12-07 00:41:41,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908385199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:41,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:41,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:41,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604581858] [2021-12-07 00:41:41,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:41,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:41,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:41,091 INFO L87 Difference]: Start difference. First operand 638 states and 824 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:42,168 INFO L93 Difference]: Finished difference Result 1239 states and 1641 transitions. [2021-12-07 00:41:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:42,169 INFO L225 Difference]: With dead ends: 1239 [2021-12-07 00:41:42,169 INFO L226 Difference]: Without dead ends: 1125 [2021-12-07 00:41:42,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:42,170 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 2904 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:42,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2904 Valid, 3120 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:42,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-07 00:41:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2021-12-07 00:41:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3360389610389611) internal successors, (823), 637 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 823 transitions. [2021-12-07 00:41:42,257 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 823 transitions. Word has length 96 [2021-12-07 00:41:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:42,257 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 823 transitions. [2021-12-07 00:41:42,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 823 transitions. [2021-12-07 00:41:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:42,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:42,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:42,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 00:41:42,258 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:42,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:42,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015970, now seen corresponding path program 1 times [2021-12-07 00:41:42,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:42,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109723678] [2021-12-07 00:41:42,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:42,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:42,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109723678] [2021-12-07 00:41:42,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109723678] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:42,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:42,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:42,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864689375] [2021-12-07 00:41:42,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:42,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:42,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:42,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:42,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:42,374 INFO L87 Difference]: Start difference. First operand 638 states and 823 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:44,379 INFO L93 Difference]: Finished difference Result 1661 states and 2260 transitions. [2021-12-07 00:41:44,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:44,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:44,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:44,381 INFO L225 Difference]: With dead ends: 1661 [2021-12-07 00:41:44,381 INFO L226 Difference]: Without dead ends: 1570 [2021-12-07 00:41:44,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:44,382 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 7682 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7682 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 3626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:44,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7682 Valid, 3741 Invalid, 3626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:41:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-12-07 00:41:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 642. [2021-12-07 00:41:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3338709677419356) internal successors, (827), 641 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 827 transitions. [2021-12-07 00:41:44,476 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 827 transitions. Word has length 96 [2021-12-07 00:41:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:44,476 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 827 transitions. [2021-12-07 00:41:44,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 827 transitions. [2021-12-07 00:41:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:44,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:44,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:44,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-07 00:41:44,477 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196549, now seen corresponding path program 1 times [2021-12-07 00:41:44,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:44,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009669411] [2021-12-07 00:41:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:44,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:44,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:44,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009669411] [2021-12-07 00:41:44,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009669411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:44,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:44,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:44,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671146957] [2021-12-07 00:41:44,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:44,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:44,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:44,550 INFO L87 Difference]: Start difference. First operand 642 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:45,675 INFO L93 Difference]: Finished difference Result 1160 states and 1528 transitions. [2021-12-07 00:41:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:45,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:45,677 INFO L225 Difference]: With dead ends: 1160 [2021-12-07 00:41:45,677 INFO L226 Difference]: Without dead ends: 1081 [2021-12-07 00:41:45,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:45,678 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 3608 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:45,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3608 Valid, 3248 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-12-07 00:41:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 642. [2021-12-07 00:41:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.332258064516129) internal successors, (826), 641 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 826 transitions. [2021-12-07 00:41:45,776 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 826 transitions. Word has length 96 [2021-12-07 00:41:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:45,776 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 826 transitions. [2021-12-07 00:41:45,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 826 transitions. [2021-12-07 00:41:45,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:45,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:45,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:45,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-07 00:41:45,777 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 190488080, now seen corresponding path program 1 times [2021-12-07 00:41:45,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836059267] [2021-12-07 00:41:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:45,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:45,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:45,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836059267] [2021-12-07 00:41:45,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836059267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:45,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:45,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:45,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429310316] [2021-12-07 00:41:45,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:45,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:45,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:45,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:45,896 INFO L87 Difference]: Start difference. First operand 642 states and 826 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:47,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:47,999 INFO L93 Difference]: Finished difference Result 1529 states and 2064 transitions. [2021-12-07 00:41:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:48,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:48,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:48,002 INFO L225 Difference]: With dead ends: 1529 [2021-12-07 00:41:48,002 INFO L226 Difference]: Without dead ends: 1450 [2021-12-07 00:41:48,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:48,003 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 5704 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5704 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:48,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5704 Valid, 3465 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [779 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:41:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-12-07 00:41:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 646. [2021-12-07 00:41:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.330128205128205) internal successors, (830), 645 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 830 transitions. [2021-12-07 00:41:48,106 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 830 transitions. Word has length 96 [2021-12-07 00:41:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:48,106 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 830 transitions. [2021-12-07 00:41:48,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 830 transitions. [2021-12-07 00:41:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:48,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:48,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-07 00:41:48,108 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1908305338, now seen corresponding path program 1 times [2021-12-07 00:41:48,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:48,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003480122] [2021-12-07 00:41:48,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:48,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:48,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:48,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003480122] [2021-12-07 00:41:48,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003480122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:48,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:48,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:48,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591466017] [2021-12-07 00:41:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:48,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:48,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:48,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:48,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:48,183 INFO L87 Difference]: Start difference. First operand 646 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:49,277 INFO L93 Difference]: Finished difference Result 1157 states and 1523 transitions. [2021-12-07 00:41:49,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:49,279 INFO L225 Difference]: With dead ends: 1157 [2021-12-07 00:41:49,279 INFO L226 Difference]: Without dead ends: 1081 [2021-12-07 00:41:49,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:49,280 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 3699 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3699 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:49,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3699 Valid, 3030 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:41:49,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-12-07 00:41:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 646. [2021-12-07 00:41:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.328525641025641) internal successors, (829), 645 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 829 transitions. [2021-12-07 00:41:49,393 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 829 transitions. Word has length 96 [2021-12-07 00:41:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:49,393 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 829 transitions. [2021-12-07 00:41:49,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 829 transitions. [2021-12-07 00:41:49,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:49,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:49,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:49,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-07 00:41:49,395 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:49,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1460404217, now seen corresponding path program 1 times [2021-12-07 00:41:49,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:49,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425610296] [2021-12-07 00:41:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:49,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:49,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:49,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425610296] [2021-12-07 00:41:49,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425610296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:49,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:49,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428171361] [2021-12-07 00:41:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:49,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:49,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:49,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:49,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:49,498 INFO L87 Difference]: Start difference. First operand 646 states and 829 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:51,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:51,636 INFO L93 Difference]: Finished difference Result 1591 states and 2148 transitions. [2021-12-07 00:41:51,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:51,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:51,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:51,637 INFO L225 Difference]: With dead ends: 1591 [2021-12-07 00:41:51,637 INFO L226 Difference]: Without dead ends: 1574 [2021-12-07 00:41:51,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:51,638 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 6758 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6758 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 3956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:51,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6758 Valid, 4127 Invalid, 3956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:41:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2021-12-07 00:41:51,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 650. [2021-12-07 00:41:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3264331210191083) internal successors, (833), 649 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 833 transitions. [2021-12-07 00:41:51,747 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 833 transitions. Word has length 96 [2021-12-07 00:41:51,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:51,748 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 833 transitions. [2021-12-07 00:41:51,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 833 transitions. [2021-12-07 00:41:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:51,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:51,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:51,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-07 00:41:51,749 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1202808302, now seen corresponding path program 1 times [2021-12-07 00:41:51,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:51,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202255042] [2021-12-07 00:41:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:51,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:51,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:51,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202255042] [2021-12-07 00:41:51,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202255042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:51,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:51,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:51,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241976770] [2021-12-07 00:41:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:51,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:51,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:51,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:51,830 INFO L87 Difference]: Start difference. First operand 650 states and 833 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:52,998 INFO L93 Difference]: Finished difference Result 1090 states and 1418 transitions. [2021-12-07 00:41:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:52,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:52,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:52,999 INFO L225 Difference]: With dead ends: 1090 [2021-12-07 00:41:52,999 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:41:52,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:53,000 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 3697 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:53,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3697 Valid, 3031 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:53,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:41:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 650. [2021-12-07 00:41:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3248407643312101) internal successors, (832), 649 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 832 transitions. [2021-12-07 00:41:53,113 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 832 transitions. Word has length 96 [2021-12-07 00:41:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:53,113 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 832 transitions. [2021-12-07 00:41:53,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 832 transitions. [2021-12-07 00:41:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:53,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:53,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:53,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-07 00:41:53,115 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:53,115 INFO L85 PathProgramCache]: Analyzing trace with hash -263649479, now seen corresponding path program 1 times [2021-12-07 00:41:53,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:53,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627967476] [2021-12-07 00:41:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:53,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:53,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:53,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627967476] [2021-12-07 00:41:53,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627967476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:53,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:53,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:53,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046753026] [2021-12-07 00:41:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:53,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:53,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:53,226 INFO L87 Difference]: Start difference. First operand 650 states and 832 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:55,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:55,253 INFO L93 Difference]: Finished difference Result 1459 states and 1953 transitions. [2021-12-07 00:41:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:55,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:55,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:55,254 INFO L225 Difference]: With dead ends: 1459 [2021-12-07 00:41:55,254 INFO L226 Difference]: Without dead ends: 1454 [2021-12-07 00:41:55,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:55,255 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 5787 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5787 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 3122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:55,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5787 Valid, 2832 Invalid, 3122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:41:55,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-12-07 00:41:55,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 654. [2021-12-07 00:41:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3227848101265822) internal successors, (836), 653 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 836 transitions. [2021-12-07 00:41:55,364 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 836 transitions. Word has length 96 [2021-12-07 00:41:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:55,364 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 836 transitions. [2021-12-07 00:41:55,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 836 transitions. [2021-12-07 00:41:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:55,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:55,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:55,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-07 00:41:55,366 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash -375617371, now seen corresponding path program 1 times [2021-12-07 00:41:55,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:55,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556337822] [2021-12-07 00:41:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:55,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:55,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:55,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556337822] [2021-12-07 00:41:55,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556337822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:55,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:55,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:55,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680984252] [2021-12-07 00:41:55,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:55,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:55,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:55,438 INFO L87 Difference]: Start difference. First operand 654 states and 836 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:56,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:56,564 INFO L93 Difference]: Finished difference Result 1161 states and 1524 transitions. [2021-12-07 00:41:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:41:56,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:56,566 INFO L225 Difference]: With dead ends: 1161 [2021-12-07 00:41:56,566 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:41:56,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:41:56,566 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 3695 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:56,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3695 Valid, 3022 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:41:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:41:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 654. [2021-12-07 00:41:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3212025316455696) internal successors, (835), 653 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 835 transitions. [2021-12-07 00:41:56,679 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 835 transitions. Word has length 96 [2021-12-07 00:41:56,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:56,679 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 835 transitions. [2021-12-07 00:41:56,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 835 transitions. [2021-12-07 00:41:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:56,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:56,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:56,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-07 00:41:56,680 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1360186144, now seen corresponding path program 1 times [2021-12-07 00:41:56,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:56,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018486640] [2021-12-07 00:41:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:56,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:56,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:56,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018486640] [2021-12-07 00:41:56,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018486640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:56,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:56,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:41:56,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183522808] [2021-12-07 00:41:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:56,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:41:56,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:41:56,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:41:56,787 INFO L87 Difference]: Start difference. First operand 654 states and 835 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:58,876 INFO L93 Difference]: Finished difference Result 1459 states and 1951 transitions. [2021-12-07 00:41:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:41:58,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:41:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:58,877 INFO L225 Difference]: With dead ends: 1459 [2021-12-07 00:41:58,877 INFO L226 Difference]: Without dead ends: 1454 [2021-12-07 00:41:58,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:41:58,878 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 6913 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:58,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6913 Valid, 2823 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:41:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-12-07 00:41:58,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 658. [2021-12-07 00:41:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 636 states have (on average 1.319182389937107) internal successors, (839), 657 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 839 transitions. [2021-12-07 00:41:58,991 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 839 transitions. Word has length 96 [2021-12-07 00:41:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:58,992 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 839 transitions. [2021-12-07 00:41:58,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 839 transitions. [2021-12-07 00:41:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:41:58,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:58,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:58,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-07 00:41:58,993 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:41:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1470891933, now seen corresponding path program 1 times [2021-12-07 00:41:58,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:58,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667461975] [2021-12-07 00:41:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:58,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:59,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:59,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667461975] [2021-12-07 00:41:59,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667461975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:59,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:59,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:41:59,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304319625] [2021-12-07 00:41:59,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:59,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:41:59,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:59,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:41:59,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:41:59,066 INFO L87 Difference]: Start difference. First operand 658 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:00,321 INFO L93 Difference]: Finished difference Result 1161 states and 1522 transitions. [2021-12-07 00:42:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:00,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:00,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:00,322 INFO L225 Difference]: With dead ends: 1161 [2021-12-07 00:42:00,322 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:42:00,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:00,323 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 3598 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:00,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3598 Valid, 3228 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:42:00,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:42:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 658. [2021-12-07 00:42:00,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 636 states have (on average 1.3176100628930818) internal successors, (838), 657 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 838 transitions. [2021-12-07 00:42:00,436 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 838 transitions. Word has length 96 [2021-12-07 00:42:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:00,436 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 838 transitions. [2021-12-07 00:42:00,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 838 transitions. [2021-12-07 00:42:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:00,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:00,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:00,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-07 00:42:00,438 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:00,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash 285754867, now seen corresponding path program 1 times [2021-12-07 00:42:00,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:00,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028222837] [2021-12-07 00:42:00,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:00,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:00,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:00,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028222837] [2021-12-07 00:42:00,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028222837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:00,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:00,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:00,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149000502] [2021-12-07 00:42:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:00,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:00,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:00,545 INFO L87 Difference]: Start difference. First operand 658 states and 838 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:02,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:02,581 INFO L93 Difference]: Finished difference Result 1527 states and 2055 transitions. [2021-12-07 00:42:02,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:02,582 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:02,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:02,583 INFO L225 Difference]: With dead ends: 1527 [2021-12-07 00:42:02,583 INFO L226 Difference]: Without dead ends: 1451 [2021-12-07 00:42:02,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:02,584 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 6910 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6910 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:02,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6910 Valid, 2814 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:42:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2021-12-07 00:42:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 662. [2021-12-07 00:42:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 640 states have (on average 1.315625) internal successors, (842), 661 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 842 transitions. [2021-12-07 00:42:02,701 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 842 transitions. Word has length 96 [2021-12-07 00:42:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:02,701 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 842 transitions. [2021-12-07 00:42:02,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 842 transitions. [2021-12-07 00:42:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:02,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:02,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:02,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-07 00:42:02,703 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:02,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:02,703 INFO L85 PathProgramCache]: Analyzing trace with hash -236226230, now seen corresponding path program 1 times [2021-12-07 00:42:02,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:02,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421925208] [2021-12-07 00:42:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:02,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:02,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:02,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421925208] [2021-12-07 00:42:02,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421925208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:02,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:02,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:02,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632164195] [2021-12-07 00:42:02,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:02,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:02,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:02,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:02,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:02,782 INFO L87 Difference]: Start difference. First operand 662 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:03,903 INFO L93 Difference]: Finished difference Result 1161 states and 1520 transitions. [2021-12-07 00:42:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:03,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:03,904 INFO L225 Difference]: With dead ends: 1161 [2021-12-07 00:42:03,904 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:42:03,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:03,905 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 3596 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:03,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 3224 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:03,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:42:04,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 662. [2021-12-07 00:42:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 640 states have (on average 1.3140625) internal successors, (841), 661 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 841 transitions. [2021-12-07 00:42:04,025 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 841 transitions. Word has length 96 [2021-12-07 00:42:04,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:04,025 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 841 transitions. [2021-12-07 00:42:04,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:04,025 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 841 transitions. [2021-12-07 00:42:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:04,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:04,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:04,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-07 00:42:04,027 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1906062599, now seen corresponding path program 1 times [2021-12-07 00:42:04,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:04,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849222590] [2021-12-07 00:42:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:04,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:04,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:04,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849222590] [2021-12-07 00:42:04,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849222590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:04,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:04,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:04,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840366985] [2021-12-07 00:42:04,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:04,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:04,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:04,162 INFO L87 Difference]: Start difference. First operand 662 states and 841 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:06,355 INFO L93 Difference]: Finished difference Result 1459 states and 1947 transitions. [2021-12-07 00:42:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:06,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:06,357 INFO L225 Difference]: With dead ends: 1459 [2021-12-07 00:42:06,357 INFO L226 Difference]: Without dead ends: 1454 [2021-12-07 00:42:06,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:06,358 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 4991 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 3864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:06,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4991 Valid, 3685 Invalid, 3864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 3095 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:42:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-12-07 00:42:06,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 666. [2021-12-07 00:42:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 644 states have (on average 1.312111801242236) internal successors, (845), 665 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 845 transitions. [2021-12-07 00:42:06,485 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 845 transitions. Word has length 96 [2021-12-07 00:42:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:06,485 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 845 transitions. [2021-12-07 00:42:06,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:06,485 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 845 transitions. [2021-12-07 00:42:06,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:06,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:06,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:06,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-07 00:42:06,486 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:06,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1010630433, now seen corresponding path program 1 times [2021-12-07 00:42:06,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:06,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058791548] [2021-12-07 00:42:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:06,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:06,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:06,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058791548] [2021-12-07 00:42:06,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058791548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:06,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:06,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:06,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762202761] [2021-12-07 00:42:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:06,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:06,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:06,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:06,603 INFO L87 Difference]: Start difference. First operand 666 states and 845 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:08,958 INFO L93 Difference]: Finished difference Result 1527 states and 2052 transitions. [2021-12-07 00:42:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:08,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:08,960 INFO L225 Difference]: With dead ends: 1527 [2021-12-07 00:42:08,960 INFO L226 Difference]: Without dead ends: 1451 [2021-12-07 00:42:08,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:08,961 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 5893 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 3084 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5893 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 3084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:08,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5893 Valid, 3671 Invalid, 4001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 3084 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:42:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2021-12-07 00:42:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 670. [2021-12-07 00:42:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 648 states have (on average 1.3101851851851851) internal successors, (849), 669 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 849 transitions. [2021-12-07 00:42:09,090 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 849 transitions. Word has length 96 [2021-12-07 00:42:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:09,090 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 849 transitions. [2021-12-07 00:42:09,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 849 transitions. [2021-12-07 00:42:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:09,091 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:09,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:09,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-07 00:42:09,092 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:09,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1893367864, now seen corresponding path program 1 times [2021-12-07 00:42:09,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:09,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267047197] [2021-12-07 00:42:09,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:09,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:09,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:09,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267047197] [2021-12-07 00:42:09,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267047197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:09,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:09,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:09,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298834261] [2021-12-07 00:42:09,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:09,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:09,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:09,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:09,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:09,195 INFO L87 Difference]: Start difference. First operand 670 states and 849 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:11,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:11,416 INFO L93 Difference]: Finished difference Result 1527 states and 2051 transitions. [2021-12-07 00:42:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:11,417 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:11,418 INFO L225 Difference]: With dead ends: 1527 [2021-12-07 00:42:11,418 INFO L226 Difference]: Without dead ends: 1451 [2021-12-07 00:42:11,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:11,418 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 5959 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5959 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:11,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5959 Valid, 3004 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [924 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:42:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2021-12-07 00:42:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 674. [2021-12-07 00:42:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.3082822085889572) internal successors, (853), 673 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 853 transitions. [2021-12-07 00:42:11,547 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 853 transitions. Word has length 96 [2021-12-07 00:42:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:11,547 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 853 transitions. [2021-12-07 00:42:11,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 853 transitions. [2021-12-07 00:42:11,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:11,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:11,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:11,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-07 00:42:11,548 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:11,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 166686020, now seen corresponding path program 1 times [2021-12-07 00:42:11,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:11,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786721103] [2021-12-07 00:42:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:11,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:11,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:11,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786721103] [2021-12-07 00:42:11,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786721103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:11,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:11,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:11,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302041529] [2021-12-07 00:42:11,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:11,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:11,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:11,662 INFO L87 Difference]: Start difference. First operand 674 states and 853 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:13,861 INFO L93 Difference]: Finished difference Result 1533 states and 2056 transitions. [2021-12-07 00:42:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:13,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:13,862 INFO L225 Difference]: With dead ends: 1533 [2021-12-07 00:42:13,863 INFO L226 Difference]: Without dead ends: 1454 [2021-12-07 00:42:13,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:13,863 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 6870 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6870 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:13,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6870 Valid, 3401 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 2802 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:42:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-12-07 00:42:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 678. [2021-12-07 00:42:13,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.3064024390243902) internal successors, (857), 677 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 857 transitions. [2021-12-07 00:42:13,993 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 857 transitions. Word has length 96 [2021-12-07 00:42:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:13,993 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 857 transitions. [2021-12-07 00:42:13,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 857 transitions. [2021-12-07 00:42:13,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:13,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:13,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:13,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-07 00:42:13,995 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1834041875, now seen corresponding path program 1 times [2021-12-07 00:42:13,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126844499] [2021-12-07 00:42:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:13,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:14,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:14,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126844499] [2021-12-07 00:42:14,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126844499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:14,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:14,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:14,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950447008] [2021-12-07 00:42:14,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:14,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:14,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:14,068 INFO L87 Difference]: Start difference. First operand 678 states and 857 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:15,270 INFO L93 Difference]: Finished difference Result 1161 states and 1515 transitions. [2021-12-07 00:42:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:15,271 INFO L225 Difference]: With dead ends: 1161 [2021-12-07 00:42:15,271 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:42:15,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:15,271 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 3605 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3605 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:15,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3605 Valid, 3184 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:42:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:42:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 678. [2021-12-07 00:42:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.3048780487804879) internal successors, (856), 677 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 856 transitions. [2021-12-07 00:42:15,402 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 856 transitions. Word has length 96 [2021-12-07 00:42:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:15,402 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 856 transitions. [2021-12-07 00:42:15,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 856 transitions. [2021-12-07 00:42:15,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:15,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:15,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:15,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-07 00:42:15,403 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:15,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1989068248, now seen corresponding path program 1 times [2021-12-07 00:42:15,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:15,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642995400] [2021-12-07 00:42:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:15,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:15,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:15,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642995400] [2021-12-07 00:42:15,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642995400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:15,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:15,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:15,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096466402] [2021-12-07 00:42:15,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:15,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:15,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:15,503 INFO L87 Difference]: Start difference. First operand 678 states and 856 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:17,691 INFO L93 Difference]: Finished difference Result 1527 states and 2048 transitions. [2021-12-07 00:42:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:17,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:17,692 INFO L225 Difference]: With dead ends: 1527 [2021-12-07 00:42:17,692 INFO L226 Difference]: Without dead ends: 1451 [2021-12-07 00:42:17,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:17,693 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 5070 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:17,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5070 Valid, 3419 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 2924 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:42:17,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2021-12-07 00:42:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 682. [2021-12-07 00:42:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.303030303030303) internal successors, (860), 681 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 860 transitions. [2021-12-07 00:42:17,831 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 860 transitions. Word has length 96 [2021-12-07 00:42:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:17,831 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 860 transitions. [2021-12-07 00:42:17,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 860 transitions. [2021-12-07 00:42:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:17,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:17,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:17,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-07 00:42:17,832 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:17,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash -974368547, now seen corresponding path program 1 times [2021-12-07 00:42:17,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:17,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40562039] [2021-12-07 00:42:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:17,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:17,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:17,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40562039] [2021-12-07 00:42:17,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40562039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:17,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:17,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:17,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933795680] [2021-12-07 00:42:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:17,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:17,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:17,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:17,942 INFO L87 Difference]: Start difference. First operand 682 states and 860 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:20,096 INFO L93 Difference]: Finished difference Result 1533 states and 2053 transitions. [2021-12-07 00:42:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:20,096 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:20,098 INFO L225 Difference]: With dead ends: 1533 [2021-12-07 00:42:20,098 INFO L226 Difference]: Without dead ends: 1454 [2021-12-07 00:42:20,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:20,098 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 6971 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6971 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:20,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6971 Valid, 2782 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:42:20,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-12-07 00:42:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 686. [2021-12-07 00:42:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.3012048192771084) internal successors, (864), 685 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:20,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 864 transitions. [2021-12-07 00:42:20,243 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 864 transitions. Word has length 96 [2021-12-07 00:42:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:20,243 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 864 transitions. [2021-12-07 00:42:20,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:20,244 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 864 transitions. [2021-12-07 00:42:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:20,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:20,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:20,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-07 00:42:20,245 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1455369821, now seen corresponding path program 1 times [2021-12-07 00:42:20,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:20,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101668048] [2021-12-07 00:42:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:20,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:20,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:20,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101668048] [2021-12-07 00:42:20,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101668048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:20,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:20,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:20,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426831992] [2021-12-07 00:42:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:20,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:20,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:20,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:20,314 INFO L87 Difference]: Start difference. First operand 686 states and 864 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:21,481 INFO L93 Difference]: Finished difference Result 1161 states and 1512 transitions. [2021-12-07 00:42:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:21,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:21,482 INFO L225 Difference]: With dead ends: 1161 [2021-12-07 00:42:21,482 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:42:21,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:21,483 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 3705 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3705 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:21,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3705 Valid, 2946 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:21,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:42:21,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 686. [2021-12-07 00:42:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.2996987951807228) internal successors, (863), 685 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 863 transitions. [2021-12-07 00:42:21,621 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 863 transitions. Word has length 96 [2021-12-07 00:42:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:21,621 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 863 transitions. [2021-12-07 00:42:21,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 863 transitions. [2021-12-07 00:42:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-07 00:42:21,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:21,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:21,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-07 00:42:21,622 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1253817221, now seen corresponding path program 1 times [2021-12-07 00:42:21,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972994281] [2021-12-07 00:42:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:21,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:21,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972994281] [2021-12-07 00:42:21,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972994281] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:21,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:21,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:21,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821888594] [2021-12-07 00:42:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:21,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:21,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:21,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:21,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:21,731 INFO L87 Difference]: Start difference. First operand 686 states and 863 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:24,119 INFO L93 Difference]: Finished difference Result 1717 states and 2301 transitions. [2021-12-07 00:42:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-07 00:42:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:24,121 INFO L225 Difference]: With dead ends: 1717 [2021-12-07 00:42:24,121 INFO L226 Difference]: Without dead ends: 1626 [2021-12-07 00:42:24,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:24,122 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 6800 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6800 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:24,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6800 Valid, 4075 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 3171 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:42:24,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2021-12-07 00:42:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 690. [2021-12-07 00:42:24,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2979041916167664) internal successors, (867), 689 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 867 transitions. [2021-12-07 00:42:24,268 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 867 transitions. Word has length 96 [2021-12-07 00:42:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:24,269 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 867 transitions. [2021-12-07 00:42:24,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 867 transitions. [2021-12-07 00:42:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:24,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:24,270 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] [2021-12-07 00:42:24,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-07 00:42:24,270 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:24,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1135046719, now seen corresponding path program 1 times [2021-12-07 00:42:24,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5489378] [2021-12-07 00:42:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:24,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:24,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:24,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5489378] [2021-12-07 00:42:24,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5489378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:24,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:24,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:24,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563120922] [2021-12-07 00:42:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:24,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:24,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:24,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:24,333 INFO L87 Difference]: Start difference. First operand 690 states and 867 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:25,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:25,455 INFO L93 Difference]: Finished difference Result 1168 states and 1518 transitions. [2021-12-07 00:42:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:25,456 INFO L225 Difference]: With dead ends: 1168 [2021-12-07 00:42:25,456 INFO L226 Difference]: Without dead ends: 1089 [2021-12-07 00:42:25,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:25,457 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 3057 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:25,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3057 Valid, 2554 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2021-12-07 00:42:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 686. [2021-12-07 00:42:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.2981927710843373) internal successors, (862), 685 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 862 transitions. [2021-12-07 00:42:25,600 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 862 transitions. Word has length 97 [2021-12-07 00:42:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:25,600 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 862 transitions. [2021-12-07 00:42:25,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 862 transitions. [2021-12-07 00:42:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:25,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:25,601 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] [2021-12-07 00:42:25,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-07 00:42:25,601 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1945440602, now seen corresponding path program 1 times [2021-12-07 00:42:25,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:25,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446681706] [2021-12-07 00:42:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:25,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446681706] [2021-12-07 00:42:25,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446681706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:25,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:25,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:25,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378642518] [2021-12-07 00:42:25,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:25,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:25,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:25,667 INFO L87 Difference]: Start difference. First operand 686 states and 862 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:26,769 INFO L93 Difference]: Finished difference Result 1252 states and 1624 transitions. [2021-12-07 00:42:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:26,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:26,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:26,770 INFO L225 Difference]: With dead ends: 1252 [2021-12-07 00:42:26,771 INFO L226 Difference]: Without dead ends: 1161 [2021-12-07 00:42:26,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:26,771 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 2905 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:26,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2905 Valid, 2967 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:26,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-12-07 00:42:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 682. [2021-12-07 00:42:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.2984848484848486) internal successors, (857), 681 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 857 transitions. [2021-12-07 00:42:26,923 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 857 transitions. Word has length 97 [2021-12-07 00:42:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:26,923 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 857 transitions. [2021-12-07 00:42:26,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 857 transitions. [2021-12-07 00:42:26,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:26,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:26,924 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] [2021-12-07 00:42:26,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-07 00:42:26,924 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash 751028406, now seen corresponding path program 1 times [2021-12-07 00:42:26,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:26,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818380505] [2021-12-07 00:42:26,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:26,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:26,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:26,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818380505] [2021-12-07 00:42:26,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818380505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:26,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:26,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:26,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254691896] [2021-12-07 00:42:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:26,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:26,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:26,987 INFO L87 Difference]: Start difference. First operand 682 states and 857 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:28,051 INFO L93 Difference]: Finished difference Result 1090 states and 1401 transitions. [2021-12-07 00:42:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:28,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:28,053 INFO L225 Difference]: With dead ends: 1090 [2021-12-07 00:42:28,053 INFO L226 Difference]: Without dead ends: 1085 [2021-12-07 00:42:28,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:28,053 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 3006 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:28,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3006 Valid, 2620 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:28,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-12-07 00:42:28,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 678. [2021-12-07 00:42:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.298780487804878) internal successors, (852), 677 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 852 transitions. [2021-12-07 00:42:28,197 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 852 transitions. Word has length 97 [2021-12-07 00:42:28,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:28,197 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 852 transitions. [2021-12-07 00:42:28,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 852 transitions. [2021-12-07 00:42:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:28,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:28,198 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] [2021-12-07 00:42:28,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-07 00:42:28,198 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:28,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2144257693, now seen corresponding path program 1 times [2021-12-07 00:42:28,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:28,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485006688] [2021-12-07 00:42:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:28,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:28,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:28,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485006688] [2021-12-07 00:42:28,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485006688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:28,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:28,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:28,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404062991] [2021-12-07 00:42:28,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:28,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:28,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:28,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:28,258 INFO L87 Difference]: Start difference. First operand 678 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:29,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:29,380 INFO L93 Difference]: Finished difference Result 1174 states and 1507 transitions. [2021-12-07 00:42:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:29,381 INFO L225 Difference]: With dead ends: 1174 [2021-12-07 00:42:29,381 INFO L226 Difference]: Without dead ends: 1157 [2021-12-07 00:42:29,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:29,382 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 3759 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3759 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:29,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3759 Valid, 3019 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:29,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-12-07 00:42:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 674. [2021-12-07 00:42:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.299079754601227) internal successors, (847), 673 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 847 transitions. [2021-12-07 00:42:29,523 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 847 transitions. Word has length 97 [2021-12-07 00:42:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:29,523 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 847 transitions. [2021-12-07 00:42:29,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:29,523 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 847 transitions. [2021-12-07 00:42:29,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:29,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:29,524 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] [2021-12-07 00:42:29,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-07 00:42:29,525 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:29,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1118128888, now seen corresponding path program 1 times [2021-12-07 00:42:29,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:29,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507550144] [2021-12-07 00:42:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:29,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:29,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:29,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507550144] [2021-12-07 00:42:29,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507550144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:29,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:29,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:29,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465928707] [2021-12-07 00:42:29,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:29,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:29,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:29,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:29,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:29,591 INFO L87 Difference]: Start difference. First operand 674 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:30,761 INFO L93 Difference]: Finished difference Result 1086 states and 1395 transitions. [2021-12-07 00:42:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:30,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:30,763 INFO L225 Difference]: With dead ends: 1086 [2021-12-07 00:42:30,763 INFO L226 Difference]: Without dead ends: 1081 [2021-12-07 00:42:30,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:30,763 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 2049 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:30,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2049 Valid, 2680 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-12-07 00:42:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 670. [2021-12-07 00:42:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 648 states have (on average 1.2993827160493827) internal successors, (842), 669 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 842 transitions. [2021-12-07 00:42:30,909 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 842 transitions. Word has length 97 [2021-12-07 00:42:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:30,909 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 842 transitions. [2021-12-07 00:42:30,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 842 transitions. [2021-12-07 00:42:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:30,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:30,910 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] [2021-12-07 00:42:30,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-07 00:42:30,910 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:30,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1222528787, now seen corresponding path program 1 times [2021-12-07 00:42:30,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:30,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11266816] [2021-12-07 00:42:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:30,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:30,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:30,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11266816] [2021-12-07 00:42:30,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11266816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:30,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:30,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:30,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179106793] [2021-12-07 00:42:30,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:30,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:30,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:30,977 INFO L87 Difference]: Start difference. First operand 670 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:32,199 INFO L93 Difference]: Finished difference Result 1155 states and 1500 transitions. [2021-12-07 00:42:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:32,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:32,200 INFO L225 Difference]: With dead ends: 1155 [2021-12-07 00:42:32,201 INFO L226 Difference]: Without dead ends: 1080 [2021-12-07 00:42:32,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:32,201 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 3624 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3624 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:32,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3624 Valid, 3087 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:42:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-12-07 00:42:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 669. [2021-12-07 00:42:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2982998454404946) internal successors, (840), 668 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 840 transitions. [2021-12-07 00:42:32,346 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 840 transitions. Word has length 97 [2021-12-07 00:42:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:32,346 INFO L470 AbstractCegarLoop]: Abstraction has 669 states and 840 transitions. [2021-12-07 00:42:32,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 840 transitions. [2021-12-07 00:42:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:32,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:32,347 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] [2021-12-07 00:42:32,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-07 00:42:32,347 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:32,348 INFO L85 PathProgramCache]: Analyzing trace with hash -377306428, now seen corresponding path program 1 times [2021-12-07 00:42:32,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:32,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170394179] [2021-12-07 00:42:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:32,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:32,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:32,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170394179] [2021-12-07 00:42:32,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170394179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:32,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:32,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:32,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071033437] [2021-12-07 00:42:32,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:32,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:32,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:32,407 INFO L87 Difference]: Start difference. First operand 669 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:33,495 INFO L93 Difference]: Finished difference Result 1156 states and 1500 transitions. [2021-12-07 00:42:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:33,496 INFO L225 Difference]: With dead ends: 1156 [2021-12-07 00:42:33,496 INFO L226 Difference]: Without dead ends: 1080 [2021-12-07 00:42:33,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:33,497 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 2037 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:33,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2037 Valid, 2690 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:33,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-12-07 00:42:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 665. [2021-12-07 00:42:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.2986003110419906) internal successors, (835), 664 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 835 transitions. [2021-12-07 00:42:33,645 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 835 transitions. Word has length 97 [2021-12-07 00:42:33,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:33,645 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 835 transitions. [2021-12-07 00:42:33,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 835 transitions. [2021-12-07 00:42:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:33,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:33,646 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] [2021-12-07 00:42:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-07 00:42:33,646 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -800281311, now seen corresponding path program 1 times [2021-12-07 00:42:33,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:33,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177642344] [2021-12-07 00:42:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:33,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:33,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177642344] [2021-12-07 00:42:33,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177642344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:33,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:33,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:33,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915697611] [2021-12-07 00:42:33,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:33,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:33,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:33,707 INFO L87 Difference]: Start difference. First operand 665 states and 835 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:34,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:34,858 INFO L93 Difference]: Finished difference Result 1085 states and 1391 transitions. [2021-12-07 00:42:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:34,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:34,859 INFO L225 Difference]: With dead ends: 1085 [2021-12-07 00:42:34,859 INFO L226 Difference]: Without dead ends: 1080 [2021-12-07 00:42:34,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:34,860 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 2035 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:34,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2035 Valid, 2696 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:34,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-12-07 00:42:35,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 661. [2021-12-07 00:42:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2989045383411582) internal successors, (830), 660 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 830 transitions. [2021-12-07 00:42:35,001 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 830 transitions. Word has length 97 [2021-12-07 00:42:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:35,001 INFO L470 AbstractCegarLoop]: Abstraction has 661 states and 830 transitions. [2021-12-07 00:42:35,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 830 transitions. [2021-12-07 00:42:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:35,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:35,002 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] [2021-12-07 00:42:35,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-07 00:42:35,002 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1416715659, now seen corresponding path program 1 times [2021-12-07 00:42:35,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:35,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805785970] [2021-12-07 00:42:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:35,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:35,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:35,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805785970] [2021-12-07 00:42:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805785970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:35,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:35,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495180299] [2021-12-07 00:42:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:35,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:35,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:35,064 INFO L87 Difference]: Start difference. First operand 661 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:36,156 INFO L93 Difference]: Finished difference Result 1156 states and 1498 transitions. [2021-12-07 00:42:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:36,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:36,157 INFO L225 Difference]: With dead ends: 1156 [2021-12-07 00:42:36,157 INFO L226 Difference]: Without dead ends: 1080 [2021-12-07 00:42:36,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:36,157 INFO L933 BasicCegarLoop]: 674 mSDtfsCounter, 2921 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:36,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 2706 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-12-07 00:42:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 657. [2021-12-07 00:42:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.2992125984251968) internal successors, (825), 656 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2021-12-07 00:42:36,300 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 97 [2021-12-07 00:42:36,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:36,300 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2021-12-07 00:42:36,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:36,300 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2021-12-07 00:42:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:36,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:36,301 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] [2021-12-07 00:42:36,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-07 00:42:36,301 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:36,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:36,301 INFO L85 PathProgramCache]: Analyzing trace with hash 120151218, now seen corresponding path program 1 times [2021-12-07 00:42:36,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:36,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308354617] [2021-12-07 00:42:36,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:36,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:36,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308354617] [2021-12-07 00:42:36,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308354617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:36,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:36,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548963438] [2021-12-07 00:42:36,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:36,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:36,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:36,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:36,371 INFO L87 Difference]: Start difference. First operand 657 states and 825 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:37,573 INFO L93 Difference]: Finished difference Result 1154 states and 1495 transitions. [2021-12-07 00:42:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:37,575 INFO L225 Difference]: With dead ends: 1154 [2021-12-07 00:42:37,575 INFO L226 Difference]: Without dead ends: 1079 [2021-12-07 00:42:37,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:37,575 INFO L933 BasicCegarLoop]: 613 mSDtfsCounter, 3596 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:37,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 3107 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2021-12-07 00:42:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 656. [2021-12-07 00:42:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 634 states have (on average 1.2981072555205047) internal successors, (823), 655 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:37,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 823 transitions. [2021-12-07 00:42:37,720 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 823 transitions. Word has length 97 [2021-12-07 00:42:37,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:37,721 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 823 transitions. [2021-12-07 00:42:37,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 823 transitions. [2021-12-07 00:42:37,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:37,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:37,722 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] [2021-12-07 00:42:37,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-07 00:42:37,722 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1143474343, now seen corresponding path program 1 times [2021-12-07 00:42:37,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:37,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783273053] [2021-12-07 00:42:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:37,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:37,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:37,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783273053] [2021-12-07 00:42:37,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783273053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:37,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:37,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:37,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705566380] [2021-12-07 00:42:37,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:37,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:37,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:37,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:37,794 INFO L87 Difference]: Start difference. First operand 656 states and 823 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:39,018 INFO L93 Difference]: Finished difference Result 1153 states and 1493 transitions. [2021-12-07 00:42:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:39,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:39,020 INFO L225 Difference]: With dead ends: 1153 [2021-12-07 00:42:39,020 INFO L226 Difference]: Without dead ends: 1078 [2021-12-07 00:42:39,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:39,020 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 3576 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:39,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3576 Valid, 3155 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2021-12-07 00:42:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 655. [2021-12-07 00:42:39,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.296998420221169) internal successors, (821), 654 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 821 transitions. [2021-12-07 00:42:39,162 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 821 transitions. Word has length 97 [2021-12-07 00:42:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:39,163 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 821 transitions. [2021-12-07 00:42:39,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 821 transitions. [2021-12-07 00:42:39,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:39,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:39,164 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] [2021-12-07 00:42:39,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-07 00:42:39,164 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:39,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1624946029, now seen corresponding path program 1 times [2021-12-07 00:42:39,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:39,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706292439] [2021-12-07 00:42:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:39,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:39,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:39,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706292439] [2021-12-07 00:42:39,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706292439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:39,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:39,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:39,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141868583] [2021-12-07 00:42:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:39,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:39,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:39,224 INFO L87 Difference]: Start difference. First operand 655 states and 821 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:40,356 INFO L93 Difference]: Finished difference Result 1154 states and 1493 transitions. [2021-12-07 00:42:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:40,357 INFO L225 Difference]: With dead ends: 1154 [2021-12-07 00:42:40,357 INFO L226 Difference]: Without dead ends: 1078 [2021-12-07 00:42:40,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:40,357 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 2685 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:40,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2685 Valid, 2960 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2021-12-07 00:42:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 651. [2021-12-07 00:42:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.2972972972972974) internal successors, (816), 650 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 816 transitions. [2021-12-07 00:42:40,503 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 816 transitions. Word has length 97 [2021-12-07 00:42:40,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:40,503 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 816 transitions. [2021-12-07 00:42:40,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 816 transitions. [2021-12-07 00:42:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:40,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:40,504 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] [2021-12-07 00:42:40,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-07 00:42:40,504 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:40,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1619562240, now seen corresponding path program 1 times [2021-12-07 00:42:40,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:40,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139220669] [2021-12-07 00:42:40,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:40,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:40,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139220669] [2021-12-07 00:42:40,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139220669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:40,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:40,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:42:40,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618903891] [2021-12-07 00:42:40,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:40,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:42:40,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:42:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:42:40,618 INFO L87 Difference]: Start difference. First operand 651 states and 816 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-07 00:42:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:42,897 INFO L93 Difference]: Finished difference Result 1516 states and 2022 transitions. [2021-12-07 00:42:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:42:42,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2021-12-07 00:42:42,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:42,899 INFO L225 Difference]: With dead ends: 1516 [2021-12-07 00:42:42,899 INFO L226 Difference]: Without dead ends: 1441 [2021-12-07 00:42:42,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:42,900 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 6666 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6666 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:42,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6666 Valid, 2889 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:42:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2021-12-07 00:42:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 655. [2021-12-07 00:42:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.2954186413902053) internal successors, (820), 654 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 820 transitions. [2021-12-07 00:42:43,046 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 820 transitions. Word has length 97 [2021-12-07 00:42:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:43,046 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 820 transitions. [2021-12-07 00:42:43,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-07 00:42:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 820 transitions. [2021-12-07 00:42:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:43,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:43,047 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] [2021-12-07 00:42:43,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-07 00:42:43,048 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1846486582, now seen corresponding path program 1 times [2021-12-07 00:42:43,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:43,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126352278] [2021-12-07 00:42:43,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:43,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:43,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:43,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126352278] [2021-12-07 00:42:43,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126352278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:43,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:43,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:43,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909541519] [2021-12-07 00:42:43,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:43,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:43,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:43,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:43,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:43,115 INFO L87 Difference]: Start difference. First operand 655 states and 820 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:44,341 INFO L93 Difference]: Finished difference Result 1152 states and 1489 transitions. [2021-12-07 00:42:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:44,342 INFO L225 Difference]: With dead ends: 1152 [2021-12-07 00:42:44,342 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:42:44,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:44,343 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 3579 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:44,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3579 Valid, 3111 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:42:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 655. [2021-12-07 00:42:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.2938388625592416) internal successors, (819), 654 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 819 transitions. [2021-12-07 00:42:44,489 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 819 transitions. Word has length 97 [2021-12-07 00:42:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:44,489 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 819 transitions. [2021-12-07 00:42:44,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:44,489 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 819 transitions. [2021-12-07 00:42:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:44,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:44,490 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] [2021-12-07 00:42:44,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-07 00:42:44,490 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash -969581064, now seen corresponding path program 1 times [2021-12-07 00:42:44,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110247024] [2021-12-07 00:42:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:44,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:44,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:44,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110247024] [2021-12-07 00:42:44,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110247024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:44,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:44,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:44,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850309248] [2021-12-07 00:42:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:44,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:44,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:44,550 INFO L87 Difference]: Start difference. First operand 655 states and 819 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:45,652 INFO L93 Difference]: Finished difference Result 1156 states and 1492 transitions. [2021-12-07 00:42:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:45,653 INFO L225 Difference]: With dead ends: 1156 [2021-12-07 00:42:45,654 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:42:45,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:45,654 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 2889 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:45,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2889 Valid, 2718 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:42:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 651. [2021-12-07 00:42:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.2941176470588236) internal successors, (814), 650 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 814 transitions. [2021-12-07 00:42:45,803 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 814 transitions. Word has length 97 [2021-12-07 00:42:45,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:45,803 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 814 transitions. [2021-12-07 00:42:45,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 814 transitions. [2021-12-07 00:42:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:45,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:45,804 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] [2021-12-07 00:42:45,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-07 00:42:45,805 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash -929040564, now seen corresponding path program 1 times [2021-12-07 00:42:45,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:45,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054051760] [2021-12-07 00:42:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:45,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:45,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054051760] [2021-12-07 00:42:45,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054051760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:45,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:45,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:45,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994147622] [2021-12-07 00:42:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:45,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:45,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:45,864 INFO L87 Difference]: Start difference. First operand 651 states and 814 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:46,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:46,940 INFO L93 Difference]: Finished difference Result 1153 states and 1488 transitions. [2021-12-07 00:42:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:46,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:46,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:46,941 INFO L225 Difference]: With dead ends: 1153 [2021-12-07 00:42:46,941 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:42:46,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:46,942 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 3758 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:46,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3758 Valid, 2721 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:46,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:42:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 647. [2021-12-07 00:42:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.2944) internal successors, (809), 646 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 809 transitions. [2021-12-07 00:42:47,093 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 809 transitions. Word has length 97 [2021-12-07 00:42:47,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:47,093 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 809 transitions. [2021-12-07 00:42:47,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:47,093 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 809 transitions. [2021-12-07 00:42:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:47,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:47,094 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] [2021-12-07 00:42:47,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-07 00:42:47,094 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:47,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1976743709, now seen corresponding path program 1 times [2021-12-07 00:42:47,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:47,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513267306] [2021-12-07 00:42:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:47,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:47,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:47,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513267306] [2021-12-07 00:42:47,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513267306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:47,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:47,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:47,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345172629] [2021-12-07 00:42:47,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:47,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:47,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:47,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:47,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:47,161 INFO L87 Difference]: Start difference. First operand 647 states and 809 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:48,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:48,405 INFO L93 Difference]: Finished difference Result 1151 states and 1485 transitions. [2021-12-07 00:42:48,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:48,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:48,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:48,406 INFO L225 Difference]: With dead ends: 1151 [2021-12-07 00:42:48,406 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:42:48,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:48,407 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 3559 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:48,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3559 Valid, 3131 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:48,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:42:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 647. [2021-12-07 00:42:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.2928) internal successors, (808), 646 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 808 transitions. [2021-12-07 00:42:48,558 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 808 transitions. Word has length 97 [2021-12-07 00:42:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:48,558 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 808 transitions. [2021-12-07 00:42:48,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 808 transitions. [2021-12-07 00:42:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:48,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:48,559 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, 1, 1] [2021-12-07 00:42:48,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-07 00:42:48,559 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1982533010, now seen corresponding path program 1 times [2021-12-07 00:42:48,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:48,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756944814] [2021-12-07 00:42:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:48,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:48,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:48,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756944814] [2021-12-07 00:42:48,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756944814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:48,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:48,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:48,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146347368] [2021-12-07 00:42:48,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:48,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:48,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:48,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:48,620 INFO L87 Difference]: Start difference. First operand 647 states and 808 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:49,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:49,744 INFO L93 Difference]: Finished difference Result 1156 states and 1489 transitions. [2021-12-07 00:42:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:49,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:49,745 INFO L225 Difference]: With dead ends: 1156 [2021-12-07 00:42:49,745 INFO L226 Difference]: Without dead ends: 1077 [2021-12-07 00:42:49,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:49,746 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 2868 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:49,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 2738 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:42:49,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-07 00:42:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 643. [2021-12-07 00:42:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.2930756843800322) internal successors, (803), 642 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 803 transitions. [2021-12-07 00:42:49,896 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 803 transitions. Word has length 97 [2021-12-07 00:42:49,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:49,896 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 803 transitions. [2021-12-07 00:42:49,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 803 transitions. [2021-12-07 00:42:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-07 00:42:49,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:49,897 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] [2021-12-07 00:42:49,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-07 00:42:49,898 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1521188561, now seen corresponding path program 1 times [2021-12-07 00:42:49,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:49,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620585142] [2021-12-07 00:42:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:49,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:49,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:49,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620585142] [2021-12-07 00:42:49,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620585142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:49,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:49,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:42:49,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924636392] [2021-12-07 00:42:49,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:49,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:42:49,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:42:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:42:49,957 INFO L87 Difference]: Start difference. First operand 643 states and 803 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:42:51,138 INFO L93 Difference]: Finished difference Result 1200 states and 1551 transitions. [2021-12-07 00:42:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:42:51,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-07 00:42:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:42:51,139 INFO L225 Difference]: With dead ends: 1200 [2021-12-07 00:42:51,139 INFO L226 Difference]: Without dead ends: 1109 [2021-12-07 00:42:51,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:42:51,140 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 2591 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:42:51,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 3253 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:42:51,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-07 00:42:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 639. [2021-12-07 00:42:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.293354943273906) internal successors, (798), 638 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 798 transitions. [2021-12-07 00:42:51,292 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 798 transitions. Word has length 97 [2021-12-07 00:42:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:51,292 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 798 transitions. [2021-12-07 00:42:51,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-07 00:42:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 798 transitions. [2021-12-07 00:42:51,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:42:51,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:51,293 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] [2021-12-07 00:42:51,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-07 00:42:51,293 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:42:51,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash -624675544, now seen corresponding path program 1 times [2021-12-07 00:42:51,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:51,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607522042] [2021-12-07 00:42:51,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:51,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:52,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:52,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607522042] [2021-12-07 00:42:52,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607522042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:52,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:52,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-12-07 00:42:52,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662375648] [2021-12-07 00:42:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:52,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 00:42:52,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 00:42:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:42:52,312 INFO L87 Difference]: Start difference. First operand 639 states and 798 transitions. Second operand has 34 states, 34 states have (on average 2.8823529411764706) internal successors, (98), 34 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) [2021-12-07 00:43:04,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:04,685 INFO L93 Difference]: Finished difference Result 2610 states and 3266 transitions. [2021-12-07 00:43:04,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-07 00:43:04,686 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8823529411764706) internal successors, (98), 34 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 [2021-12-07 00:43:04,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:04,687 INFO L225 Difference]: With dead ends: 2610 [2021-12-07 00:43:04,688 INFO L226 Difference]: Without dead ends: 2532 [2021-12-07 00:43:04,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=594, Invalid=3312, Unknown=0, NotChecked=0, Total=3906 [2021-12-07 00:43:04,688 INFO L933 BasicCegarLoop]: 2024 mSDtfsCounter, 9720 mSDsluCounter, 31305 mSDsCounter, 0 mSdLazyCounter, 21479 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9720 SdHoareTripleChecker+Valid, 33329 SdHoareTripleChecker+Invalid, 21794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 21479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:04,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9720 Valid, 33329 Invalid, 21794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [315 Valid, 21479 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-12-07 00:43:04,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2021-12-07 00:43:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 664. [2021-12-07 00:43:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 642 states have (on average 1.294392523364486) internal successors, (831), 663 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 831 transitions. [2021-12-07 00:43:04,861 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 831 transitions. Word has length 98 [2021-12-07 00:43:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:04,861 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 831 transitions. [2021-12-07 00:43:04,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8823529411764706) internal successors, (98), 34 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) [2021-12-07 00:43:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 831 transitions. [2021-12-07 00:43:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:43:04,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:04,863 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] [2021-12-07 00:43:04,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-07 00:43:04,863 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:04,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1226755919, now seen corresponding path program 1 times [2021-12-07 00:43:04,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:04,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811115653] [2021-12-07 00:43:04,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:04,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:05,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:05,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811115653] [2021-12-07 00:43:05,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811115653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:05,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:05,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:43:05,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20446096] [2021-12-07 00:43:05,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:05,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:43:05,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:43:05,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:43:05,119 INFO L87 Difference]: Start difference. First operand 664 states and 831 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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) [2021-12-07 00:43:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:07,473 INFO L93 Difference]: Finished difference Result 2012 states and 2653 transitions. [2021-12-07 00:43:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:43:07,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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 [2021-12-07 00:43:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:07,475 INFO L225 Difference]: With dead ends: 2012 [2021-12-07 00:43:07,475 INFO L226 Difference]: Without dead ends: 1905 [2021-12-07 00:43:07,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-07 00:43:07,476 INFO L933 BasicCegarLoop]: 1855 mSDtfsCounter, 3577 mSDsluCounter, 12692 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 14547 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:07,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3577 Valid, 14547 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:43:07,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2021-12-07 00:43:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 631. [2021-12-07 00:43:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 612 states have (on average 1.292483660130719) internal successors, (791), 630 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:07,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 791 transitions. [2021-12-07 00:43:07,660 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 791 transitions. Word has length 98 [2021-12-07 00:43:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:07,660 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 791 transitions. [2021-12-07 00:43:07,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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) [2021-12-07 00:43:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 791 transitions. [2021-12-07 00:43:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:43:07,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:07,661 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] [2021-12-07 00:43:07,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-07 00:43:07,661 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015527, now seen corresponding path program 1 times [2021-12-07 00:43:07,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:07,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532399978] [2021-12-07 00:43:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:07,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:08,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:08,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532399978] [2021-12-07 00:43:08,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532399978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:08,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:08,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-07 00:43:08,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783715132] [2021-12-07 00:43:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:08,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-07 00:43:08,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:08,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-07 00:43:08,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:43:08,036 INFO L87 Difference]: Start difference. First operand 631 states and 791 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 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) [2021-12-07 00:43:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:10,415 INFO L93 Difference]: Finished difference Result 1551 states and 2027 transitions. [2021-12-07 00:43:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-07 00:43:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 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 [2021-12-07 00:43:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:10,416 INFO L225 Difference]: With dead ends: 1551 [2021-12-07 00:43:10,417 INFO L226 Difference]: Without dead ends: 1418 [2021-12-07 00:43:10,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2021-12-07 00:43:10,417 INFO L933 BasicCegarLoop]: 1417 mSDtfsCounter, 4304 mSDsluCounter, 13232 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 14649 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:10,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4304 Valid, 14649 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:43:10,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-12-07 00:43:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 607. [2021-12-07 00:43:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 589 states have (on average 1.2886247877758914) internal successors, (759), 606 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 759 transitions. [2021-12-07 00:43:10,603 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 759 transitions. Word has length 98 [2021-12-07 00:43:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:10,603 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 759 transitions. [2021-12-07 00:43:10,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 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) [2021-12-07 00:43:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 759 transitions. [2021-12-07 00:43:10,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:43:10,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:10,604 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] [2021-12-07 00:43:10,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-07 00:43:10,604 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:10,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:10,605 INFO L85 PathProgramCache]: Analyzing trace with hash 454771522, now seen corresponding path program 1 times [2021-12-07 00:43:10,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:10,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859881366] [2021-12-07 00:43:10,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:10,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:10,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:10,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859881366] [2021-12-07 00:43:10,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859881366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:10,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:10,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:10,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52949287] [2021-12-07 00:43:10,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:10,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:10,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:10,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:10,827 INFO L87 Difference]: Start difference. First operand 607 states and 759 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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) [2021-12-07 00:43:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:12,142 INFO L93 Difference]: Finished difference Result 1323 states and 1739 transitions. [2021-12-07 00:43:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:12,143 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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 [2021-12-07 00:43:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:12,144 INFO L225 Difference]: With dead ends: 1323 [2021-12-07 00:43:12,144 INFO L226 Difference]: Without dead ends: 1132 [2021-12-07 00:43:12,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:43:12,144 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 3670 mSDsluCounter, 5693 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:12,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3670 Valid, 6961 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:43:12,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-07 00:43:12,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 490. [2021-12-07 00:43:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 477 states have (on average 1.2893081761006289) internal successors, (615), 489 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 615 transitions. [2021-12-07 00:43:12,305 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 615 transitions. Word has length 98 [2021-12-07 00:43:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:12,305 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 615 transitions. [2021-12-07 00:43:12,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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) [2021-12-07 00:43:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 615 transitions. [2021-12-07 00:43:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:43:12,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:12,306 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] [2021-12-07 00:43:12,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-07 00:43:12,306 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:12,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:12,307 INFO L85 PathProgramCache]: Analyzing trace with hash 773924719, now seen corresponding path program 1 times [2021-12-07 00:43:12,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:12,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740824703] [2021-12-07 00:43:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:12,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:12,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:12,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740824703] [2021-12-07 00:43:12,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740824703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:12,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:12,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:12,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674706729] [2021-12-07 00:43:12,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:12,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:12,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:12,478 INFO L87 Difference]: Start difference. First operand 490 states and 615 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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) [2021-12-07 00:43:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:13,475 INFO L93 Difference]: Finished difference Result 1146 states and 1533 transitions. [2021-12-07 00:43:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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 [2021-12-07 00:43:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:13,476 INFO L225 Difference]: With dead ends: 1146 [2021-12-07 00:43:13,476 INFO L226 Difference]: Without dead ends: 973 [2021-12-07 00:43:13,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:43:13,477 INFO L933 BasicCegarLoop]: 773 mSDtfsCounter, 3451 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:13,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3451 Valid, 3769 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2021-12-07 00:43:13,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 391. [2021-12-07 00:43:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 379 states have (on average 1.279683377308707) internal successors, (485), 390 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 485 transitions. [2021-12-07 00:43:13,618 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 485 transitions. Word has length 98 [2021-12-07 00:43:13,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:13,618 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 485 transitions. [2021-12-07 00:43:13,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 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) [2021-12-07 00:43:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 485 transitions. [2021-12-07 00:43:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 00:43:13,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:13,619 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] [2021-12-07 00:43:13,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-07 00:43:13,619 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1439429279, now seen corresponding path program 1 times [2021-12-07 00:43:13,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:13,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024386398] [2021-12-07 00:43:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:13,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:13,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:13,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024386398] [2021-12-07 00:43:13,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024386398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:13,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:13,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:43:13,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273607063] [2021-12-07 00:43:13,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:13,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:43:13,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:13,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:43:13,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:43:13,766 INFO L87 Difference]: Start difference. First operand 391 states and 485 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 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) [2021-12-07 00:43:14,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:14,802 INFO L93 Difference]: Finished difference Result 986 states and 1308 transitions. [2021-12-07 00:43:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:43:14,803 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 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 [2021-12-07 00:43:14,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:14,804 INFO L225 Difference]: With dead ends: 986 [2021-12-07 00:43:14,804 INFO L226 Difference]: Without dead ends: 789 [2021-12-07 00:43:14,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:43:14,804 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 2155 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:14,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 2317 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:43:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2021-12-07 00:43:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 268. [2021-12-07 00:43:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 261 states have (on average 1.264367816091954) internal successors, (330), 267 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 330 transitions. [2021-12-07 00:43:14,918 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 330 transitions. Word has length 98 [2021-12-07 00:43:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:14,918 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 330 transitions. [2021-12-07 00:43:14,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 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) [2021-12-07 00:43:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 330 transitions. [2021-12-07 00:43:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:14,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:14,919 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] [2021-12-07 00:43:14,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-07 00:43:14,919 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:14,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash -798114932, now seen corresponding path program 1 times [2021-12-07 00:43:14,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:14,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823533822] [2021-12-07 00:43:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:14,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:15,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:15,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823533822] [2021-12-07 00:43:15,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823533822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:15,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:15,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:43:15,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115204466] [2021-12-07 00:43:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:15,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:15,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:15,020 INFO L87 Difference]: Start difference. First operand 268 states and 330 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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) [2021-12-07 00:43:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:16,776 INFO L93 Difference]: Finished difference Result 1089 states and 1514 transitions. [2021-12-07 00:43:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:43:16,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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 [2021-12-07 00:43:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:16,777 INFO L225 Difference]: With dead ends: 1089 [2021-12-07 00:43:16,777 INFO L226 Difference]: Without dead ends: 997 [2021-12-07 00:43:16,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:43:16,778 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 5518 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5518 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:16,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5518 Valid, 993 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:43:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2021-12-07 00:43:16,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 272. [2021-12-07 00:43:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 265 states have (on average 1.2566037735849056) internal successors, (333), 271 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2021-12-07 00:43:16,896 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 99 [2021-12-07 00:43:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:16,896 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2021-12-07 00:43:16,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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) [2021-12-07 00:43:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2021-12-07 00:43:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:16,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:16,897 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] [2021-12-07 00:43:16,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-07 00:43:16,897 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:16,897 INFO L85 PathProgramCache]: Analyzing trace with hash -595534477, now seen corresponding path program 1 times [2021-12-07 00:43:16,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:16,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129114279] [2021-12-07 00:43:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:16,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:16,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:16,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129114279] [2021-12-07 00:43:16,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129114279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:16,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:16,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:16,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887954594] [2021-12-07 00:43:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:16,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:43:16,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:16,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:43:16,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:43:16,965 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 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) [2021-12-07 00:43:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:17,786 INFO L93 Difference]: Finished difference Result 542 states and 714 transitions. [2021-12-07 00:43:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:43:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 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 [2021-12-07 00:43:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:17,787 INFO L225 Difference]: With dead ends: 542 [2021-12-07 00:43:17,787 INFO L226 Difference]: Without dead ends: 535 [2021-12-07 00:43:17,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:43:17,788 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1841 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:17,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 1232 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:43:17,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-12-07 00:43:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 272. [2021-12-07 00:43:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 265 states have (on average 1.2490566037735849) internal successors, (331), 271 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 331 transitions. [2021-12-07 00:43:17,905 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 331 transitions. Word has length 99 [2021-12-07 00:43:17,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:17,905 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 331 transitions. [2021-12-07 00:43:17,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 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) [2021-12-07 00:43:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 331 transitions. [2021-12-07 00:43:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:17,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:17,906 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] [2021-12-07 00:43:17,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-07 00:43:17,906 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:17,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:17,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1745372777, now seen corresponding path program 1 times [2021-12-07 00:43:17,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:17,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152914311] [2021-12-07 00:43:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:17,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:18,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:18,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152914311] [2021-12-07 00:43:18,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152914311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:18,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:18,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-12-07 00:43:18,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948435261] [2021-12-07 00:43:18,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:18,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-07 00:43:18,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:18,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-07 00:43:18,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2021-12-07 00:43:18,737 INFO L87 Difference]: Start difference. First operand 272 states and 331 transitions. Second operand has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 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) [2021-12-07 00:43:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:23,166 INFO L93 Difference]: Finished difference Result 971 states and 1253 transitions. [2021-12-07 00:43:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-07 00:43:23,167 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 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 [2021-12-07 00:43:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:23,167 INFO L225 Difference]: With dead ends: 971 [2021-12-07 00:43:23,168 INFO L226 Difference]: Without dead ends: 893 [2021-12-07 00:43:23,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=376, Invalid=2174, Unknown=0, NotChecked=0, Total=2550 [2021-12-07 00:43:23,168 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 3112 mSDsluCounter, 9711 mSDsCounter, 0 mSdLazyCounter, 4239 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3112 SdHoareTripleChecker+Valid, 10403 SdHoareTripleChecker+Invalid, 4328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:23,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3112 Valid, 10403 Invalid, 4328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4239 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-07 00:43:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-12-07 00:43:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 277. [2021-12-07 00:43:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 270 states have (on average 1.2481481481481482) internal successors, (337), 276 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 337 transitions. [2021-12-07 00:43:23,293 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 337 transitions. Word has length 99 [2021-12-07 00:43:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:23,294 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 337 transitions. [2021-12-07 00:43:23,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 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) [2021-12-07 00:43:23,294 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 337 transitions. [2021-12-07 00:43:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:23,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:23,294 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] [2021-12-07 00:43:23,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-07 00:43:23,294 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:23,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1808646559, now seen corresponding path program 1 times [2021-12-07 00:43:23,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:23,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584685406] [2021-12-07 00:43:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:23,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:23,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:23,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584685406] [2021-12-07 00:43:23,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584685406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:23,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:23,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-07 00:43:23,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151025614] [2021-12-07 00:43:23,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:23,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-07 00:43:23,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-07 00:43:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-12-07 00:43:23,589 INFO L87 Difference]: Start difference. First operand 277 states and 337 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 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) [2021-12-07 00:43:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:24,965 INFO L93 Difference]: Finished difference Result 652 states and 832 transitions. [2021-12-07 00:43:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:43:24,966 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 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 [2021-12-07 00:43:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:24,966 INFO L225 Difference]: With dead ends: 652 [2021-12-07 00:43:24,966 INFO L226 Difference]: Without dead ends: 574 [2021-12-07 00:43:24,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2021-12-07 00:43:24,967 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 2801 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:24,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2801 Valid, 2835 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:43:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-12-07 00:43:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 300. [2021-12-07 00:43:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 293 states have (on average 1.2491467576791808) internal successors, (366), 299 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 366 transitions. [2021-12-07 00:43:25,100 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 366 transitions. Word has length 99 [2021-12-07 00:43:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:25,100 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 366 transitions. [2021-12-07 00:43:25,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 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) [2021-12-07 00:43:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 366 transitions. [2021-12-07 00:43:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:25,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:25,101 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] [2021-12-07 00:43:25,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-07 00:43:25,101 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1661193720, now seen corresponding path program 1 times [2021-12-07 00:43:25,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:25,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538229451] [2021-12-07 00:43:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:25,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:25,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:25,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538229451] [2021-12-07 00:43:25,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538229451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:25,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:25,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:25,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705497811] [2021-12-07 00:43:25,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:25,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:25,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:25,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:25,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:25,251 INFO L87 Difference]: Start difference. First operand 300 states and 366 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 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) [2021-12-07 00:43:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:26,247 INFO L93 Difference]: Finished difference Result 811 states and 1105 transitions. [2021-12-07 00:43:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:26,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 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 [2021-12-07 00:43:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:26,248 INFO L225 Difference]: With dead ends: 811 [2021-12-07 00:43:26,248 INFO L226 Difference]: Without dead ends: 726 [2021-12-07 00:43:26,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:43:26,249 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1076 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:26,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 3560 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-12-07 00:43:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 289. [2021-12-07 00:43:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 288 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 351 transitions. [2021-12-07 00:43:26,383 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 351 transitions. Word has length 99 [2021-12-07 00:43:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:26,383 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 351 transitions. [2021-12-07 00:43:26,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 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) [2021-12-07 00:43:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 351 transitions. [2021-12-07 00:43:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-07 00:43:26,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:26,384 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] [2021-12-07 00:43:26,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-07 00:43:26,384 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash 422880585, now seen corresponding path program 1 times [2021-12-07 00:43:26,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:26,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067790623] [2021-12-07 00:43:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:26,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:26,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:26,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067790623] [2021-12-07 00:43:26,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067790623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:26,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:26,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 00:43:26,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812050016] [2021-12-07 00:43:26,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:26,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:43:26,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:43:26,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:43:26,581 INFO L87 Difference]: Start difference. First operand 289 states and 351 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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) [2021-12-07 00:43:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:28,481 INFO L93 Difference]: Finished difference Result 1280 states and 1790 transitions. [2021-12-07 00:43:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:43:28,481 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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 [2021-12-07 00:43:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:28,482 INFO L225 Difference]: With dead ends: 1280 [2021-12-07 00:43:28,482 INFO L226 Difference]: Without dead ends: 1186 [2021-12-07 00:43:28,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-07 00:43:28,483 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 2860 mSDsluCounter, 4556 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 5038 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:28,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 5038 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:43:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2021-12-07 00:43:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 248. [2021-12-07 00:43:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 244 states have (on average 1.2377049180327868) internal successors, (302), 247 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:28,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 302 transitions. [2021-12-07 00:43:28,616 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 302 transitions. Word has length 99 [2021-12-07 00:43:28,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:28,616 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 302 transitions. [2021-12-07 00:43:28,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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) [2021-12-07 00:43:28,616 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 302 transitions. [2021-12-07 00:43:28,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-07 00:43:28,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:28,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:28,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-07 00:43:28,617 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:28,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:28,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1179990787, now seen corresponding path program 1 times [2021-12-07 00:43:28,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:28,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070839688] [2021-12-07 00:43:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:28,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:28,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:28,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070839688] [2021-12-07 00:43:28,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070839688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:28,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:28,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:28,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761896435] [2021-12-07 00:43:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:28,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:43:28,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:28,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:43:28,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:43:28,679 INFO L87 Difference]: Start difference. First operand 248 states and 302 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:29,421 INFO L93 Difference]: Finished difference Result 587 states and 790 transitions. [2021-12-07 00:43:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:43:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-07 00:43:29,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:29,421 INFO L225 Difference]: With dead ends: 587 [2021-12-07 00:43:29,421 INFO L226 Difference]: Without dead ends: 495 [2021-12-07 00:43:29,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:43:29,422 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 1375 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:29,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 1038 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-12-07 00:43:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 244. [2021-12-07 00:43:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 240 states have (on average 1.2375) internal successors, (297), 243 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 297 transitions. [2021-12-07 00:43:29,549 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 297 transitions. Word has length 100 [2021-12-07 00:43:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:29,549 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 297 transitions. [2021-12-07 00:43:29,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 297 transitions. [2021-12-07 00:43:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-07 00:43:29,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:29,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:29,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-07 00:43:29,550 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:29,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:29,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1356067843, now seen corresponding path program 1 times [2021-12-07 00:43:29,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:29,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463947769] [2021-12-07 00:43:29,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:29,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:29,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:29,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463947769] [2021-12-07 00:43:29,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463947769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:29,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:29,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:29,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285513155] [2021-12-07 00:43:29,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:29,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:43:29,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:43:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:43:29,612 INFO L87 Difference]: Start difference. First operand 244 states and 297 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:30,358 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2021-12-07 00:43:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:43:30,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-07 00:43:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:30,359 INFO L225 Difference]: With dead ends: 520 [2021-12-07 00:43:30,359 INFO L226 Difference]: Without dead ends: 513 [2021-12-07 00:43:30,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:43:30,360 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 908 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:30,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 971 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-12-07 00:43:30,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 244. [2021-12-07 00:43:30,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 240 states have (on average 1.2291666666666667) internal successors, (295), 243 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 295 transitions. [2021-12-07 00:43:30,489 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 295 transitions. Word has length 100 [2021-12-07 00:43:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:30,489 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 295 transitions. [2021-12-07 00:43:30,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 295 transitions. [2021-12-07 00:43:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-07 00:43:30,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:30,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:30,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-07 00:43:30,490 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash 91798256, now seen corresponding path program 1 times [2021-12-07 00:43:30,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:30,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415163844] [2021-12-07 00:43:30,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:30,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:30,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:30,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415163844] [2021-12-07 00:43:30,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415163844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:30,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:30,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:30,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59471692] [2021-12-07 00:43:30,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:30,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:30,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:30,687 INFO L87 Difference]: Start difference. First operand 244 states and 295 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:31,337 INFO L93 Difference]: Finished difference Result 447 states and 572 transitions. [2021-12-07 00:43:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-07 00:43:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:31,339 INFO L225 Difference]: With dead ends: 447 [2021-12-07 00:43:31,339 INFO L226 Difference]: Without dead ends: 369 [2021-12-07 00:43:31,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:43:31,339 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1167 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:31,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 1936 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-12-07 00:43:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 212. [2021-12-07 00:43:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 209 states have (on average 1.229665071770335) internal successors, (257), 211 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 257 transitions. [2021-12-07 00:43:31,459 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 257 transitions. Word has length 100 [2021-12-07 00:43:31,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:31,459 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 257 transitions. [2021-12-07 00:43:31,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:31,459 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 257 transitions. [2021-12-07 00:43:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-07 00:43:31,459 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:31,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:31,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-07 00:43:31,460 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:31,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1646491527, now seen corresponding path program 1 times [2021-12-07 00:43:31,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:31,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347355588] [2021-12-07 00:43:31,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:31,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:32,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:32,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347355588] [2021-12-07 00:43:32,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347355588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:32,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:32,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-12-07 00:43:32,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593299602] [2021-12-07 00:43:32,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:32,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-07 00:43:32,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:32,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-07 00:43:32,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 00:43:32,257 INFO L87 Difference]: Start difference. First operand 212 states and 257 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:38,553 INFO L93 Difference]: Finished difference Result 1090 states and 1452 transitions. [2021-12-07 00:43:38,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-07 00:43:38,553 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-07 00:43:38,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:38,554 INFO L225 Difference]: With dead ends: 1090 [2021-12-07 00:43:38,554 INFO L226 Difference]: Without dead ends: 1084 [2021-12-07 00:43:38,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=586, Invalid=3074, Unknown=0, NotChecked=0, Total=3660 [2021-12-07 00:43:38,555 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 3710 mSDsluCounter, 14788 mSDsCounter, 0 mSdLazyCounter, 7816 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 15698 SdHoareTripleChecker+Invalid, 7923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 7816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:38,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3710 Valid, 15698 Invalid, 7923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 7816 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-07 00:43:38,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2021-12-07 00:43:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 238. [2021-12-07 00:43:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 235 states have (on average 1.2297872340425533) internal successors, (289), 237 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 289 transitions. [2021-12-07 00:43:38,692 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 289 transitions. Word has length 101 [2021-12-07 00:43:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:38,692 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 289 transitions. [2021-12-07 00:43:38,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 289 transitions. [2021-12-07 00:43:38,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-07 00:43:38,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:38,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:38,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-07 00:43:38,693 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:38,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2022910867, now seen corresponding path program 1 times [2021-12-07 00:43:38,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:38,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986994616] [2021-12-07 00:43:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:38,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:38,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:38,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986994616] [2021-12-07 00:43:38,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986994616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:38,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:38,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:38,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989707212] [2021-12-07 00:43:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:38,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:38,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:38,846 INFO L87 Difference]: Start difference. First operand 238 states and 289 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:39,691 INFO L93 Difference]: Finished difference Result 501 states and 663 transitions. [2021-12-07 00:43:39,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-07 00:43:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:39,692 INFO L225 Difference]: With dead ends: 501 [2021-12-07 00:43:39,692 INFO L226 Difference]: Without dead ends: 495 [2021-12-07 00:43:39,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:43:39,692 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 1169 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:39,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 2722 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-12-07 00:43:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 206. [2021-12-07 00:43:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 204 states have (on average 1.2303921568627452) internal successors, (251), 205 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 251 transitions. [2021-12-07 00:43:39,816 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 251 transitions. Word has length 102 [2021-12-07 00:43:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:39,816 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 251 transitions. [2021-12-07 00:43:39,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:39,816 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 251 transitions. [2021-12-07 00:43:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-07 00:43:39,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:39,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:39,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-07 00:43:39,817 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:39,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:39,817 INFO L85 PathProgramCache]: Analyzing trace with hash 859668190, now seen corresponding path program 1 times [2021-12-07 00:43:39,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:39,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660697209] [2021-12-07 00:43:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:39,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:40,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:40,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660697209] [2021-12-07 00:43:40,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660697209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:40,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:40,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:43:40,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428455075] [2021-12-07 00:43:40,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:40,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:43:40,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:40,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:43:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:43:40,006 INFO L87 Difference]: Start difference. First operand 206 states and 251 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:40,910 INFO L93 Difference]: Finished difference Result 509 states and 676 transitions. [2021-12-07 00:43:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:43:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-07 00:43:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:40,911 INFO L225 Difference]: With dead ends: 509 [2021-12-07 00:43:40,911 INFO L226 Difference]: Without dead ends: 485 [2021-12-07 00:43:40,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:43:40,912 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1234 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:40,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 3167 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:43:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-12-07 00:43:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 182. [2021-12-07 00:43:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 181 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:41,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 225 transitions. [2021-12-07 00:43:41,030 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 225 transitions. Word has length 102 [2021-12-07 00:43:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:41,030 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 225 transitions. [2021-12-07 00:43:41,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 225 transitions. [2021-12-07 00:43:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-07 00:43:41,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:41,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:41,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-07 00:43:41,031 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash -145342212, now seen corresponding path program 1 times [2021-12-07 00:43:41,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:41,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155145283] [2021-12-07 00:43:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:41,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:41,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:41,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155145283] [2021-12-07 00:43:41,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155145283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:41,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:41,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:41,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273351813] [2021-12-07 00:43:41,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:41,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:43:41,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:41,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:43:41,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:43:41,088 INFO L87 Difference]: Start difference. First operand 182 states and 225 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:42,444 INFO L93 Difference]: Finished difference Result 1070 states and 1545 transitions. [2021-12-07 00:43:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:43:42,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2021-12-07 00:43:42,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:42,445 INFO L225 Difference]: With dead ends: 1070 [2021-12-07 00:43:42,445 INFO L226 Difference]: Without dead ends: 996 [2021-12-07 00:43:42,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:43:42,445 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 2283 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:42,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 1863 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:43:42,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2021-12-07 00:43:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 254. [2021-12-07 00:43:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.3122529644268774) internal successors, (332), 253 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:42,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 332 transitions. [2021-12-07 00:43:42,668 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 332 transitions. Word has length 132 [2021-12-07 00:43:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:42,668 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 332 transitions. [2021-12-07 00:43:42,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 332 transitions. [2021-12-07 00:43:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:42,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:42,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:42,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-07 00:43:42,669 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash -226636237, now seen corresponding path program 1 times [2021-12-07 00:43:42,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:42,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638544381] [2021-12-07 00:43:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:42,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:42,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:42,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638544381] [2021-12-07 00:43:42,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638544381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:42,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:42,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:42,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78871765] [2021-12-07 00:43:42,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:42,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:43:42,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:43:42,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:43:42,728 INFO L87 Difference]: Start difference. First operand 254 states and 332 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:44,108 INFO L93 Difference]: Finished difference Result 1204 states and 1742 transitions. [2021-12-07 00:43:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:43:44,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:43:44,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:44,110 INFO L225 Difference]: With dead ends: 1204 [2021-12-07 00:43:44,110 INFO L226 Difference]: Without dead ends: 1058 [2021-12-07 00:43:44,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:43:44,111 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1886 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:44,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1886 Valid, 1226 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:43:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2021-12-07 00:43:44,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 398. [2021-12-07 00:43:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.3778337531486147) internal successors, (547), 397 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 547 transitions. [2021-12-07 00:43:44,537 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 547 transitions. Word has length 134 [2021-12-07 00:43:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:44,537 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 547 transitions. [2021-12-07 00:43:44,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:44,538 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 547 transitions. [2021-12-07 00:43:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:44,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:44,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:44,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-07 00:43:44,538 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:44,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash -517447956, now seen corresponding path program 1 times [2021-12-07 00:43:44,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:44,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835939488] [2021-12-07 00:43:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:44,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:44,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:44,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835939488] [2021-12-07 00:43:44,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835939488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:44,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:44,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:43:44,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095613882] [2021-12-07 00:43:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:44,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:43:44,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:44,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:43:44,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:43:44,578 INFO L87 Difference]: Start difference. First operand 398 states and 547 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:45,425 INFO L93 Difference]: Finished difference Result 952 states and 1365 transitions. [2021-12-07 00:43:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:43:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:43:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:45,427 INFO L225 Difference]: With dead ends: 952 [2021-12-07 00:43:45,427 INFO L226 Difference]: Without dead ends: 662 [2021-12-07 00:43:45,427 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 [2021-12-07 00:43:45,427 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 133 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:45,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 361 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:43:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-12-07 00:43:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 656. [2021-12-07 00:43:46,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4015267175572519) internal successors, (918), 655 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 918 transitions. [2021-12-07 00:43:46,222 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 918 transitions. Word has length 134 [2021-12-07 00:43:46,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:46,222 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 918 transitions. [2021-12-07 00:43:46,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:46,222 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 918 transitions. [2021-12-07 00:43:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:46,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:46,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:46,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-07 00:43:46,223 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash -450954444, now seen corresponding path program 1 times [2021-12-07 00:43:46,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:46,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907241435] [2021-12-07 00:43:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:46,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:46,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907241435] [2021-12-07 00:43:46,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907241435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:46,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:46,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:43:46,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467789543] [2021-12-07 00:43:46,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:46,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:43:46,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:46,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:43:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:43:46,260 INFO L87 Difference]: Start difference. First operand 656 states and 918 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:47,076 INFO L93 Difference]: Finished difference Result 1206 states and 1722 transitions. [2021-12-07 00:43:47,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:43:47,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:43:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:47,077 INFO L225 Difference]: With dead ends: 1206 [2021-12-07 00:43:47,077 INFO L226 Difference]: Without dead ends: 658 [2021-12-07 00:43:47,078 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 [2021-12-07 00:43:47,078 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 87 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:47,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 378 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:43:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-12-07 00:43:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 656. [2021-12-07 00:43:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.3984732824427482) internal successors, (916), 655 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 916 transitions. [2021-12-07 00:43:47,867 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 916 transitions. Word has length 134 [2021-12-07 00:43:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:47,867 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 916 transitions. [2021-12-07 00:43:47,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 916 transitions. [2021-12-07 00:43:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:47,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:47,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:47,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-07 00:43:47,868 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1829095987, now seen corresponding path program 1 times [2021-12-07 00:43:47,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288014765] [2021-12-07 00:43:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:47,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:47,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:47,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288014765] [2021-12-07 00:43:47,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288014765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:47,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:47,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:47,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210526500] [2021-12-07 00:43:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:47,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:43:47,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:43:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:43:47,925 INFO L87 Difference]: Start difference. First operand 656 states and 916 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:50,965 INFO L93 Difference]: Finished difference Result 2445 states and 3528 transitions. [2021-12-07 00:43:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:43:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:43:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:50,967 INFO L225 Difference]: With dead ends: 2445 [2021-12-07 00:43:50,967 INFO L226 Difference]: Without dead ends: 2170 [2021-12-07 00:43:50,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:43:50,968 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1753 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:50,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1753 Valid, 1303 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:43:50,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2021-12-07 00:43:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1066. [2021-12-07 00:43:52,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 1065 states have (on average 1.4215962441314554) internal successors, (1514), 1065 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1514 transitions. [2021-12-07 00:43:52,348 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1514 transitions. Word has length 134 [2021-12-07 00:43:52,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:52,349 INFO L470 AbstractCegarLoop]: Abstraction has 1066 states and 1514 transitions. [2021-12-07 00:43:52,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1514 transitions. [2021-12-07 00:43:52,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:52,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:52,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:52,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-07 00:43:52,350 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:52,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:52,350 INFO L85 PathProgramCache]: Analyzing trace with hash -590721997, now seen corresponding path program 1 times [2021-12-07 00:43:52,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:52,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845534878] [2021-12-07 00:43:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:52,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:52,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:52,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845534878] [2021-12-07 00:43:52,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845534878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:52,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:52,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:52,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111268656] [2021-12-07 00:43:52,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:43:52,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:43:52,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:43:52,406 INFO L87 Difference]: Start difference. First operand 1066 states and 1514 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:55,870 INFO L93 Difference]: Finished difference Result 2718 states and 3927 transitions. [2021-12-07 00:43:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:43:55,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:43:55,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:55,873 INFO L225 Difference]: With dead ends: 2718 [2021-12-07 00:43:55,873 INFO L226 Difference]: Without dead ends: 2443 [2021-12-07 00:43:55,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:43:55,874 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1608 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:55,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 1395 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:43:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2021-12-07 00:43:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 1339. [2021-12-07 00:43:57,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 1.429745889387145) internal successors, (1913), 1338 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1913 transitions. [2021-12-07 00:43:57,646 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1913 transitions. Word has length 134 [2021-12-07 00:43:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:57,646 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1913 transitions. [2021-12-07 00:43:57,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:57,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1913 transitions. [2021-12-07 00:43:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:43:57,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:57,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:57,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-07 00:43:57,647 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:43:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash 513822771, now seen corresponding path program 1 times [2021-12-07 00:43:57,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:57,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347204494] [2021-12-07 00:43:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:57,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:57,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:57,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347204494] [2021-12-07 00:43:57,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347204494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:57,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:57,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:43:57,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914006447] [2021-12-07 00:43:57,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:57,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:43:57,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:43:57,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:43:57,706 INFO L87 Difference]: Start difference. First operand 1339 states and 1913 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:01,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:01,580 INFO L93 Difference]: Finished difference Result 2991 states and 4326 transitions. [2021-12-07 00:44:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:44:01,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:44:01,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:01,582 INFO L225 Difference]: With dead ends: 2991 [2021-12-07 00:44:01,583 INFO L226 Difference]: Without dead ends: 2716 [2021-12-07 00:44:01,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:44:01,583 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1560 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:01,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1560 Valid, 1542 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:44:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-07 00:44:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1612. [2021-12-07 00:44:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.4351334574798262) internal successors, (2312), 1611 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2312 transitions. [2021-12-07 00:44:03,795 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2312 transitions. Word has length 134 [2021-12-07 00:44:03,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:44:03,795 INFO L470 AbstractCegarLoop]: Abstraction has 1612 states and 2312 transitions. [2021-12-07 00:44:03,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2312 transitions. [2021-12-07 00:44:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-07 00:44:03,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:44:03,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:44:03,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-07 00:44:03,796 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:44:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:44:03,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1850617293, now seen corresponding path program 1 times [2021-12-07 00:44:03,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:44:03,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690758272] [2021-12-07 00:44:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:44:03,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:44:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:44:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:44:03,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:44:03,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690758272] [2021-12-07 00:44:03,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690758272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:44:03,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:44:03,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:44:03,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847105972] [2021-12-07 00:44:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:44:03,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:44:03,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:44:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:44:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:44:03,852 INFO L87 Difference]: Start difference. First operand 1612 states and 2312 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:08,068 INFO L93 Difference]: Finished difference Result 3264 states and 4725 transitions. [2021-12-07 00:44:08,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:44:08,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-12-07 00:44:08,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:08,071 INFO L225 Difference]: With dead ends: 3264 [2021-12-07 00:44:08,071 INFO L226 Difference]: Without dead ends: 2989 [2021-12-07 00:44:08,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:44:08,072 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1612 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:08,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1612 Valid, 1549 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:44:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-12-07 00:44:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1885. [2021-12-07 00:44:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1884 states have (on average 1.4389596602972399) internal successors, (2711), 1884 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2711 transitions. [2021-12-07 00:44:10,723 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2711 transitions. Word has length 134 [2021-12-07 00:44:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:44:10,723 INFO L470 AbstractCegarLoop]: Abstraction has 1885 states and 2711 transitions. [2021-12-07 00:44:10,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2711 transitions. [2021-12-07 00:44:10,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-07 00:44:10,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:44:10,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:44:10,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-07 00:44:10,724 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:44:10,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:44:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1545715399, now seen corresponding path program 1 times [2021-12-07 00:44:10,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:44:10,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136157561] [2021-12-07 00:44:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:44:10,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:44:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:44:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:44:10,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:44:10,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136157561] [2021-12-07 00:44:10,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136157561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:44:10,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:44:10,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:44:10,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657272250] [2021-12-07 00:44:10,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:44:10,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:44:10,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:44:10,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:44:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:44:10,760 INFO L87 Difference]: Start difference. First operand 1885 states and 2711 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:15,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:15,733 INFO L93 Difference]: Finished difference Result 5335 states and 7721 transitions. [2021-12-07 00:44:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:44:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2021-12-07 00:44:15,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:15,736 INFO L225 Difference]: With dead ends: 5335 [2021-12-07 00:44:15,737 INFO L226 Difference]: Without dead ends: 3558 [2021-12-07 00:44:15,738 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 [2021-12-07 00:44:15,738 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:15,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:44:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2021-12-07 00:44:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3452. [2021-12-07 00:44:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.4395827296435815) internal successors, (4968), 3451 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4968 transitions. [2021-12-07 00:44:20,642 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4968 transitions. Word has length 135 [2021-12-07 00:44:20,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:44:20,642 INFO L470 AbstractCegarLoop]: Abstraction has 3452 states and 4968 transitions. [2021-12-07 00:44:20,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4968 transitions. [2021-12-07 00:44:20,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-07 00:44:20,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:44:20,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:44:20,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-12-07 00:44:20,643 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:44:20,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:44:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash -83969198, now seen corresponding path program 1 times [2021-12-07 00:44:20,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:44:20,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815348899] [2021-12-07 00:44:20,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:44:20,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:44:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:44:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:44:20,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:44:20,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815348899] [2021-12-07 00:44:20,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815348899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:44:20,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:44:20,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:44:20,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034045847] [2021-12-07 00:44:20,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:44:20,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:44:20,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:44:20,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:44:20,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:44:20,681 INFO L87 Difference]: Start difference. First operand 3452 states and 4968 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:30,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:30,033 INFO L93 Difference]: Finished difference Result 9932 states and 14310 transitions. [2021-12-07 00:44:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:44:30,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2021-12-07 00:44:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:30,040 INFO L225 Difference]: With dead ends: 9932 [2021-12-07 00:44:30,040 INFO L226 Difference]: Without dead ends: 6588 [2021-12-07 00:44:30,043 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 [2021-12-07 00:44:30,043 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:30,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:44:30,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states. [2021-12-07 00:44:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 6378. [2021-12-07 00:44:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6377 states have (on average 1.4339030892269091) internal successors, (9144), 6377 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 9144 transitions. [2021-12-07 00:44:39,265 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 9144 transitions. Word has length 136 [2021-12-07 00:44:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:44:39,265 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 9144 transitions. [2021-12-07 00:44:39,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 9144 transitions. [2021-12-07 00:44:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-07 00:44:39,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:44:39,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:44:39,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-12-07 00:44:39,266 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:44:39,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:44:39,266 INFO L85 PathProgramCache]: Analyzing trace with hash 703509637, now seen corresponding path program 1 times [2021-12-07 00:44:39,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:44:39,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381009059] [2021-12-07 00:44:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:44:39,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:44:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:44:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:44:39,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:44:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381009059] [2021-12-07 00:44:39,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381009059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:44:39,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:44:39,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:44:39,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785510176] [2021-12-07 00:44:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:44:39,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:44:39,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:44:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:44:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:44:39,304 INFO L87 Difference]: Start difference. First operand 6378 states and 9144 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:44:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:57,009 INFO L93 Difference]: Finished difference Result 18502 states and 26474 transitions. [2021-12-07 00:44:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:44:57,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2021-12-07 00:44:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:57,020 INFO L225 Difference]: With dead ends: 18502 [2021-12-07 00:44:57,020 INFO L226 Difference]: Without dead ends: 12232 [2021-12-07 00:44:57,023 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 [2021-12-07 00:44:57,024 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 92 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:57,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:44:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2021-12-07 00:45:14,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11814. [2021-12-07 00:45:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11814 states, 11813 states have (on average 1.4238550749174639) internal successors, (16820), 11813 states have internal predecessors, (16820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:45:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11814 states to 11814 states and 16820 transitions. [2021-12-07 00:45:14,249 INFO L78 Accepts]: Start accepts. Automaton has 11814 states and 16820 transitions. Word has length 137 [2021-12-07 00:45:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:14,250 INFO L470 AbstractCegarLoop]: Abstraction has 11814 states and 16820 transitions. [2021-12-07 00:45:14,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:45:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11814 states and 16820 transitions. [2021-12-07 00:45:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-07 00:45:14,250 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:14,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:14,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-12-07 00:45:14,251 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:45:14,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1103280162, now seen corresponding path program 1 times [2021-12-07 00:45:14,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:14,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93058278] [2021-12-07 00:45:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:14,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:45:14,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:14,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93058278] [2021-12-07 00:45:14,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93058278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:14,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:14,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:45:14,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124847620] [2021-12-07 00:45:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:14,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:45:14,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:45:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:45:14,289 INFO L87 Difference]: Start difference. First operand 11814 states and 16820 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:45:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:45:47,695 INFO L93 Difference]: Finished difference Result 34394 states and 48774 transitions. [2021-12-07 00:45:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:45:47,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2021-12-07 00:45:47,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:45:47,717 INFO L225 Difference]: With dead ends: 34394 [2021-12-07 00:45:47,717 INFO L226 Difference]: Without dead ends: 22688 [2021-12-07 00:45:47,725 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 [2021-12-07 00:45:47,725 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 85 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:45:47,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:45:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22688 states. [2021-12-07 00:46:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22688 to 21854. [2021-12-07 00:46:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21854 states, 21853 states have (on average 1.4103326774355924) internal successors, (30820), 21853 states have internal predecessors, (30820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:46:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21854 states to 21854 states and 30820 transitions. [2021-12-07 00:46:19,898 INFO L78 Accepts]: Start accepts. Automaton has 21854 states and 30820 transitions. Word has length 138 [2021-12-07 00:46:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:46:19,898 INFO L470 AbstractCegarLoop]: Abstraction has 21854 states and 30820 transitions. [2021-12-07 00:46:19,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:46:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 21854 states and 30820 transitions. [2021-12-07 00:46:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-07 00:46:19,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:46:19,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:46:19,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-12-07 00:46:19,899 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:46:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:46:19,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1519797295, now seen corresponding path program 1 times [2021-12-07 00:46:19,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:46:19,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825518761] [2021-12-07 00:46:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:46:19,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:46:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:46:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:46:19,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:46:19,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825518761] [2021-12-07 00:46:19,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825518761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:46:19,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:46:19,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:46:19,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511455827] [2021-12-07 00:46:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:46:19,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:46:19,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:46:19,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:46:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:46:19,938 INFO L87 Difference]: Start difference. First operand 21854 states and 30820 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:47:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:47:22,372 INFO L93 Difference]: Finished difference Result 63682 states and 89318 transitions. [2021-12-07 00:47:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:47:22,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2021-12-07 00:47:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:47:22,436 INFO L225 Difference]: With dead ends: 63682 [2021-12-07 00:47:22,436 INFO L226 Difference]: Without dead ends: 41936 [2021-12-07 00:47:22,453 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 [2021-12-07 00:47:22,453 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 75 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:47:22,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 481 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:47:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41936 states. [2021-12-07 00:48:21,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41936 to 40270. [2021-12-07 00:48:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40270 states, 40269 states have (on average 1.393528520698304) internal successors, (56116), 40269 states have internal predecessors, (56116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40270 states to 40270 states and 56116 transitions. [2021-12-07 00:48:21,746 INFO L78 Accepts]: Start accepts. Automaton has 40270 states and 56116 transitions. Word has length 139 [2021-12-07 00:48:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:48:21,746 INFO L470 AbstractCegarLoop]: Abstraction has 40270 states and 56116 transitions. [2021-12-07 00:48:21,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:48:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 40270 states and 56116 transitions. [2021-12-07 00:48:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-07 00:48:21,747 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:48:21,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:48:21,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-12-07 00:48:21,747 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:48:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:48:21,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2004314006, now seen corresponding path program 1 times [2021-12-07 00:48:21,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:48:21,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343048116] [2021-12-07 00:48:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:48:21,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:48:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:48:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:48:21,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:48:21,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343048116] [2021-12-07 00:48:21,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343048116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:48:21,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:48:21,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:48:21,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414507405] [2021-12-07 00:48:21,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:48:21,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:48:21,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:48:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:48:21,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:48:21,801 INFO L87 Difference]: Start difference. First operand 40270 states and 56116 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:50:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:50:09,547 INFO L93 Difference]: Finished difference Result 70898 states and 98242 transitions. [2021-12-07 00:50:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:50:09,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-12-07 00:50:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:50:09,630 INFO L225 Difference]: With dead ends: 70898 [2021-12-07 00:50:09,631 INFO L226 Difference]: Without dead ends: 70896 [2021-12-07 00:50:09,645 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 [2021-12-07 00:50:09,645 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 360 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:50:09,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 1185 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:50:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70896 states. [2021-12-07 00:51:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70896 to 41422. [2021-12-07 00:51:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41422 states, 41421 states have (on average 1.3771758286859324) internal successors, (57044), 41421 states have internal predecessors, (57044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:51:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41422 states to 41422 states and 57044 transitions. [2021-12-07 00:51:13,341 INFO L78 Accepts]: Start accepts. Automaton has 41422 states and 57044 transitions. Word has length 140 [2021-12-07 00:51:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:51:13,341 INFO L470 AbstractCegarLoop]: Abstraction has 41422 states and 57044 transitions. [2021-12-07 00:51:13,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:51:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 41422 states and 57044 transitions. [2021-12-07 00:51:13,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-07 00:51:13,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:51:13,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:51:13,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-12-07 00:51:13,342 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-07 00:51:13,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:51:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash -800182564, now seen corresponding path program 1 times [2021-12-07 00:51:13,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:51:13,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463410070] [2021-12-07 00:51:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:51:13,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:51:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:51:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:51:13,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:51:13,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463410070] [2021-12-07 00:51:13,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463410070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:51:13,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:51:13,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:51:13,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219425639] [2021-12-07 00:51:13,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:51:13,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:51:13,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:51:13,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:51:13,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:51:13,401 INFO L87 Difference]: Start difference. First operand 41422 states and 57044 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:53:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:04,474 INFO L93 Difference]: Finished difference Result 79644 states and 110043 transitions. [2021-12-07 00:53:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:53:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-12-07 00:53:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:04,565 INFO L225 Difference]: With dead ends: 79644 [2021-12-07 00:53:04,565 INFO L226 Difference]: Without dead ends: 73274 [2021-12-07 00:53:04,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:53:04,584 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1629 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:53:04,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 1384 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:53:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73274 states.