./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU --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 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:17:15,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:17:15,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:17:15,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:17:15,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:17:15,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:17:15,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:17:15,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:17:15,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:17:15,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:17:15,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:17:15,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:17:15,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:17:15,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:17:15,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:17:15,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:17:15,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:17:15,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:17:15,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:17:15,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:17:15,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:17:15,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:17:15,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:17:15,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:17:15,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:17:15,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:17:15,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:17:15,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:17:15,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:17:15,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:17:15,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:17:15,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:17:15,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:17:15,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:17:15,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:17:15,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:17:15,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:17:15,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:17:15,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:17:15,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:17:15,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:17:15,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:17:15,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:17:15,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:17:15,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:17:15,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:17:15,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:17:15,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:17:15,233 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:17:15,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:17:15,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:17:15,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:17:15,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:17:15,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:17:15,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:17:15,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:17:15,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:17:15,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:17:15,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:17:15,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:17:15,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:17:15,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:17:15,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:17:15,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:17:15,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:17:15,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:17:15,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:17:15,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:17:15,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:17:15,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:17:15,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:17:15,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:17:15,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:17:15,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:17:15,240 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 [2021-11-02 23:17:15,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:17:15,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:17:15,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:17:15,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:17:15,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:17:15,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 23:17:15,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/data/65b45f2c0/529572d742e843928c12dce498d3d391/FLAG5f8aa8155 [2021-11-02 23:17:16,569 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:17:16,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 23:17:16,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/data/65b45f2c0/529572d742e843928c12dce498d3d391/FLAG5f8aa8155 [2021-11-02 23:17:17,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/data/65b45f2c0/529572d742e843928c12dce498d3d391 [2021-11-02 23:17:17,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:17:17,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:17:17,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:17:17,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:17:17,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:17:17,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:17:17" (1/1) ... [2021-11-02 23:17:17,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acbfea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:17, skipping insertion in model container [2021-11-02 23:17:17,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:17:17" (1/1) ... [2021-11-02 23:17:17,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:17:17,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:17:18,013 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2021-11-02 23:17:18,075 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2021-11-02 23:17:18,093 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2021-11-02 23:17:18,100 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2021-11-02 23:17:18,113 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2021-11-02 23:17:18,120 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2021-11-02 23:17:18,130 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2021-11-02 23:17:18,148 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2021-11-02 23:17:18,156 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2021-11-02 23:17:18,164 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2021-11-02 23:17:18,179 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2021-11-02 23:17:18,205 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2021-11-02 23:17:18,213 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2021-11-02 23:17:18,221 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2021-11-02 23:17:18,236 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2021-11-02 23:17:18,258 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2021-11-02 23:17:18,301 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2021-11-02 23:17:18,307 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2021-11-02 23:17:18,316 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2021-11-02 23:17:18,334 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2021-11-02 23:17:18,358 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2021-11-02 23:17:18,397 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2021-11-02 23:17:18,522 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2021-11-02 23:17:18,527 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2021-11-02 23:17:18,535 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2021-11-02 23:17:18,549 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2021-11-02 23:17:18,570 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2021-11-02 23:17:18,611 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2021-11-02 23:17:18,675 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2021-11-02 23:17:19,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:17:19,601 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:17:19,733 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2021-11-02 23:17:19,769 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2021-11-02 23:17:19,777 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2021-11-02 23:17:19,783 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2021-11-02 23:17:19,792 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2021-11-02 23:17:19,797 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2021-11-02 23:17:19,804 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2021-11-02 23:17:19,817 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2021-11-02 23:17:19,823 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2021-11-02 23:17:19,829 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2021-11-02 23:17:19,840 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2021-11-02 23:17:19,858 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2021-11-02 23:17:19,864 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2021-11-02 23:17:19,870 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2021-11-02 23:17:19,883 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2021-11-02 23:17:19,900 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2021-11-02 23:17:19,930 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2021-11-02 23:17:19,935 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2021-11-02 23:17:19,943 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2021-11-02 23:17:19,954 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2021-11-02 23:17:19,974 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2021-11-02 23:17:20,004 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2021-11-02 23:17:20,060 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2021-11-02 23:17:20,066 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2021-11-02 23:17:20,072 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2021-11-02 23:17:20,084 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2021-11-02 23:17:20,101 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2021-11-02 23:17:20,145 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2021-11-02 23:17:20,191 WARN L228 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_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2021-11-02 23:17:20,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:17:20,969 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:17:20,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20 WrapperNode [2021-11-02 23:17:20,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:17:20,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:17:20,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:17:20,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:17:20,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:17:21,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:17:21,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:17:21,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:17:21,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:17:21,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:17:21,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:17:21,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:17:21,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (1/1) ... [2021-11-02 23:17:21,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:17:21,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:17:21,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:17:21,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5c9ff3-adad-43cd-9a0e-8dbdef816201/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:17:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:17:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:17:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:17:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:17:28,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:17:28,602 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-02 23:17:28,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:17:28 BoogieIcfgContainer [2021-11-02 23:17:28,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:17:28,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:17:28,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:17:28,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:17:28,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:17:17" (1/3) ... [2021-11-02 23:17:28,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eae4c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:17:28, skipping insertion in model container [2021-11-02 23:17:28,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:17:20" (2/3) ... [2021-11-02 23:17:28,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eae4c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:17:28, skipping insertion in model container [2021-11-02 23:17:28,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:17:28" (3/3) ... [2021-11-02 23:17:28,624 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 23:17:28,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:17:28,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-02 23:17:28,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:17:28,717 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:17:28,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-02 23:17:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-02 23:17:28,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:28,912 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:17:28,913 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:28,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1477171740, now seen corresponding path program 1 times [2021-11-02 23:17:28,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:28,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077128832] [2021-11-02 23:17:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:28,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:29,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:29,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077128832] [2021-11-02 23:17:29,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077128832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:29,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:29,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:17:29,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717586586] [2021-11-02 23:17:29,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:17:29,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:29,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:17:29,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:17:29,805 INFO L87 Difference]: Start difference. First operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 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 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:31,664 INFO L93 Difference]: Finished difference Result 3095 states and 5492 transitions. [2021-11-02 23:17:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:31,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-02 23:17:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:31,709 INFO L225 Difference]: With dead ends: 3095 [2021-11-02 23:17:31,709 INFO L226 Difference]: Without dead ends: 1615 [2021-11-02 23:17:31,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:17:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2021-11-02 23:17:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2021-11-02 23:17:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1586 states have (on average 1.3171500630517023) internal successors, (2089), 1614 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2089 transitions. [2021-11-02 23:17:31,912 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2089 transitions. Word has length 101 [2021-11-02 23:17:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:31,913 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2089 transitions. [2021-11-02 23:17:31,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2089 transitions. [2021-11-02 23:17:31,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-02 23:17:31,927 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:31,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:17:31,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:17:31,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:31,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash -285120067, now seen corresponding path program 1 times [2021-11-02 23:17:31,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:31,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477729306] [2021-11-02 23:17:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:31,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:32,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:32,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477729306] [2021-11-02 23:17:32,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477729306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:32,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:32,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:17:32,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25148472] [2021-11-02 23:17:32,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:17:32,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:32,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:17:32,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:17:32,195 INFO L87 Difference]: Start difference. First operand 1615 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:33,470 INFO L93 Difference]: Finished difference Result 2619 states and 3504 transitions. [2021-11-02 23:17:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:33,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-02 23:17:33,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:33,483 INFO L225 Difference]: With dead ends: 2619 [2021-11-02 23:17:33,483 INFO L226 Difference]: Without dead ends: 1347 [2021-11-02 23:17:33,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:17:33,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-11-02 23:17:33,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1347. [2021-11-02 23:17:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1318 states have (on average 1.3566009104704098) internal successors, (1788), 1346 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1788 transitions. [2021-11-02 23:17:33,661 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1788 transitions. Word has length 102 [2021-11-02 23:17:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:33,663 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 1788 transitions. [2021-11-02 23:17:33,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1788 transitions. [2021-11-02 23:17:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-02 23:17:33,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:33,670 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:17:33,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:17:33,671 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1226599565, now seen corresponding path program 1 times [2021-11-02 23:17:33,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:33,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636374266] [2021-11-02 23:17:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:33,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:33,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:33,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636374266] [2021-11-02 23:17:33,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636374266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:33,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:33,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:17:33,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067676180] [2021-11-02 23:17:33,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:17:33,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:17:33,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:17:33,948 INFO L87 Difference]: Start difference. First operand 1347 states and 1788 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:35,266 INFO L93 Difference]: Finished difference Result 2351 states and 3202 transitions. [2021-11-02 23:17:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:35,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-02 23:17:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:35,276 INFO L225 Difference]: With dead ends: 2351 [2021-11-02 23:17:35,276 INFO L226 Difference]: Without dead ends: 1243 [2021-11-02 23:17:35,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:17:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-02 23:17:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1243. [2021-11-02 23:17:35,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1214 states have (on average 1.373146622734761) internal successors, (1667), 1242 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:35,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1667 transitions. [2021-11-02 23:17:35,359 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1667 transitions. Word has length 103 [2021-11-02 23:17:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:35,363 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 1667 transitions. [2021-11-02 23:17:35,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1667 transitions. [2021-11-02 23:17:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-02 23:17:35,374 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:35,375 INFO L513 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] [2021-11-02 23:17:35,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:17:35,376 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1982583278, now seen corresponding path program 1 times [2021-11-02 23:17:35,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:35,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207066673] [2021-11-02 23:17:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:35,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:35,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:35,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207066673] [2021-11-02 23:17:35,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207066673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:35,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:35,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:17:35,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129081668] [2021-11-02 23:17:35,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:17:35,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:17:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:17:35,553 INFO L87 Difference]: Start difference. First operand 1243 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:37,280 INFO L93 Difference]: Finished difference Result 2833 states and 3888 transitions. [2021-11-02 23:17:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-02 23:17:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:37,292 INFO L225 Difference]: With dead ends: 2833 [2021-11-02 23:17:37,293 INFO L226 Difference]: Without dead ends: 1738 [2021-11-02 23:17:37,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:17:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-11-02 23:17:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1636. [2021-11-02 23:17:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1607 states have (on average 1.4262601120099565) internal successors, (2292), 1635 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2292 transitions. [2021-11-02 23:17:37,446 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2292 transitions. Word has length 104 [2021-11-02 23:17:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:37,446 INFO L470 AbstractCegarLoop]: Abstraction has 1636 states and 2292 transitions. [2021-11-02 23:17:37,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2292 transitions. [2021-11-02 23:17:37,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-02 23:17:37,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:37,453 INFO L513 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] [2021-11-02 23:17:37,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:17:37,460 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash -457397765, now seen corresponding path program 1 times [2021-11-02 23:17:37,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:37,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415342654] [2021-11-02 23:17:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:37,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:37,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:37,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415342654] [2021-11-02 23:17:37,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415342654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:37,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:37,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:17:37,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779208194] [2021-11-02 23:17:37,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:17:37,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:37,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:17:37,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:17:37,705 INFO L87 Difference]: Start difference. First operand 1636 states and 2292 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:39,410 INFO L93 Difference]: Finished difference Result 4003 states and 5677 transitions. [2021-11-02 23:17:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:39,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-11-02 23:17:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:39,432 INFO L225 Difference]: With dead ends: 4003 [2021-11-02 23:17:39,432 INFO L226 Difference]: Without dead ends: 2471 [2021-11-02 23:17:39,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:17:39,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-11-02 23:17:39,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2393. [2021-11-02 23:17:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2364 states have (on average 1.4526226734348562) internal successors, (3434), 2392 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3434 transitions. [2021-11-02 23:17:39,668 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3434 transitions. Word has length 105 [2021-11-02 23:17:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:39,670 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 3434 transitions. [2021-11-02 23:17:39,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3434 transitions. [2021-11-02 23:17:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-02 23:17:39,678 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:39,678 INFO L513 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] [2021-11-02 23:17:39,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:17:39,679 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:39,680 INFO L85 PathProgramCache]: Analyzing trace with hash 943323584, now seen corresponding path program 1 times [2021-11-02 23:17:39,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:39,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686538978] [2021-11-02 23:17:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:39,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:39,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:39,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686538978] [2021-11-02 23:17:39,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686538978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:39,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:39,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:17:39,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197954983] [2021-11-02 23:17:39,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:17:39,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:39,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:17:39,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:17:39,865 INFO L87 Difference]: Start difference. First operand 2393 states and 3434 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:41,565 INFO L93 Difference]: Finished difference Result 5975 states and 8609 transitions. [2021-11-02 23:17:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:41,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2021-11-02 23:17:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:41,596 INFO L225 Difference]: With dead ends: 5975 [2021-11-02 23:17:41,597 INFO L226 Difference]: Without dead ends: 3667 [2021-11-02 23:17:41,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:17:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2021-11-02 23:17:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3565. [2021-11-02 23:17:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 3536 states have (on average 1.463235294117647) internal successors, (5174), 3564 states have internal predecessors, (5174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 5174 transitions. [2021-11-02 23:17:42,047 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 5174 transitions. Word has length 106 [2021-11-02 23:17:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:42,048 INFO L470 AbstractCegarLoop]: Abstraction has 3565 states and 5174 transitions. [2021-11-02 23:17:42,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 5174 transitions. [2021-11-02 23:17:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-02 23:17:42,056 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:42,057 INFO L513 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] [2021-11-02 23:17:42,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:17:42,057 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash 76195807, now seen corresponding path program 1 times [2021-11-02 23:17:42,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:42,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573782455] [2021-11-02 23:17:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:42,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:42,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:42,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573782455] [2021-11-02 23:17:42,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573782455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:42,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:42,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:17:42,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478143384] [2021-11-02 23:17:42,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:17:42,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:17:42,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:17:42,193 INFO L87 Difference]: Start difference. First operand 3565 states and 5174 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:43,784 INFO L93 Difference]: Finished difference Result 7045 states and 10262 transitions. [2021-11-02 23:17:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:17:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2021-11-02 23:17:43,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:43,810 INFO L225 Difference]: With dead ends: 7045 [2021-11-02 23:17:43,811 INFO L226 Difference]: Without dead ends: 3560 [2021-11-02 23:17:43,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:17:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2021-11-02 23:17:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3560. [2021-11-02 23:17:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4613423959218352) internal successors, (5160), 3559 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5160 transitions. [2021-11-02 23:17:44,097 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5160 transitions. Word has length 107 [2021-11-02 23:17:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:44,098 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5160 transitions. [2021-11-02 23:17:44,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5160 transitions. [2021-11-02 23:17:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 23:17:44,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:44,109 INFO L513 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] [2021-11-02 23:17:44,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:17:44,110 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:44,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:44,111 INFO L85 PathProgramCache]: Analyzing trace with hash 65664385, now seen corresponding path program 1 times [2021-11-02 23:17:44,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:44,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236336367] [2021-11-02 23:17:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:44,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:44,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:44,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236336367] [2021-11-02 23:17:44,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236336367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:44,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:44,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-02 23:17:44,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211452420] [2021-11-02 23:17:44,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:17:44,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:17:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:17:44,364 INFO L87 Difference]: Start difference. First operand 3560 states and 5160 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:46,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:46,870 INFO L93 Difference]: Finished difference Result 6510 states and 9217 transitions. [2021-11-02 23:17:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:17:46,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-11-02 23:17:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:46,905 INFO L225 Difference]: With dead ends: 6510 [2021-11-02 23:17:46,905 INFO L226 Difference]: Without dead ends: 4844 [2021-11-02 23:17:46,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-02 23:17:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-11-02 23:17:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 3560. [2021-11-02 23:17:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4610591900311527) internal successors, (5159), 3559 states have internal predecessors, (5159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5159 transitions. [2021-11-02 23:17:47,277 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5159 transitions. Word has length 108 [2021-11-02 23:17:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:47,277 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5159 transitions. [2021-11-02 23:17:47,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5159 transitions. [2021-11-02 23:17:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 23:17:47,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:47,286 INFO L513 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] [2021-11-02 23:17:47,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:17:47,286 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:47,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1618229889, now seen corresponding path program 1 times [2021-11-02 23:17:47,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:47,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514537977] [2021-11-02 23:17:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:47,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:47,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:47,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514537977] [2021-11-02 23:17:47,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514537977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:47,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:47,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:17:47,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486415980] [2021-11-02 23:17:47,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:17:47,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:17:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:17:47,642 INFO L87 Difference]: Start difference. First operand 3560 states and 5159 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:50,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:50,869 INFO L93 Difference]: Finished difference Result 5799 states and 8434 transitions. [2021-11-02 23:17:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:17:50,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-11-02 23:17:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:50,929 INFO L225 Difference]: With dead ends: 5799 [2021-11-02 23:17:50,929 INFO L226 Difference]: Without dead ends: 4990 [2021-11-02 23:17:50,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:17:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2021-11-02 23:17:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 3560. [2021-11-02 23:17:51,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4607759841404702) internal successors, (5158), 3559 states have internal predecessors, (5158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5158 transitions. [2021-11-02 23:17:51,300 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5158 transitions. Word has length 108 [2021-11-02 23:17:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:51,300 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5158 transitions. [2021-11-02 23:17:51,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5158 transitions. [2021-11-02 23:17:51,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 23:17:51,308 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:51,308 INFO L513 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] [2021-11-02 23:17:51,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 23:17:51,309 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:51,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:51,309 INFO L85 PathProgramCache]: Analyzing trace with hash 180174419, now seen corresponding path program 1 times [2021-11-02 23:17:51,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:51,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993330786] [2021-11-02 23:17:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:51,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:51,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:51,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993330786] [2021-11-02 23:17:51,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993330786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:51,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:51,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:17:51,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571554542] [2021-11-02 23:17:51,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:17:51,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:17:51,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:17:51,531 INFO L87 Difference]: Start difference. First operand 3560 states and 5158 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:54,165 INFO L93 Difference]: Finished difference Result 5576 states and 8137 transitions. [2021-11-02 23:17:54,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:17:54,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-11-02 23:17:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:54,179 INFO L225 Difference]: With dead ends: 5576 [2021-11-02 23:17:54,179 INFO L226 Difference]: Without dead ends: 4588 [2021-11-02 23:17:54,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:17:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2021-11-02 23:17:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 3560. [2021-11-02 23:17:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4604927782497876) internal successors, (5157), 3559 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5157 transitions. [2021-11-02 23:17:54,513 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5157 transitions. Word has length 108 [2021-11-02 23:17:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:54,514 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5157 transitions. [2021-11-02 23:17:54,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5157 transitions. [2021-11-02 23:17:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:17:54,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:54,523 INFO L513 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] [2021-11-02 23:17:54,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 23:17:54,524 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash -860352434, now seen corresponding path program 1 times [2021-11-02 23:17:54,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:54,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531735322] [2021-11-02 23:17:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:54,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:54,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:54,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531735322] [2021-11-02 23:17:54,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531735322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:54,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:54,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:17:54,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047489466] [2021-11-02 23:17:54,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:17:54,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:17:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:17:54,769 INFO L87 Difference]: Start difference. First operand 3560 states and 5157 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:17:57,837 INFO L93 Difference]: Finished difference Result 7776 states and 11354 transitions. [2021-11-02 23:17:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:17:57,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:17:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:17:57,854 INFO L225 Difference]: With dead ends: 7776 [2021-11-02 23:17:57,854 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:17:57,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:17:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:17:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3560. [2021-11-02 23:17:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4599263664684226) internal successors, (5155), 3559 states have internal predecessors, (5155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5155 transitions. [2021-11-02 23:17:58,219 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5155 transitions. Word has length 110 [2021-11-02 23:17:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:17:58,220 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5155 transitions. [2021-11-02 23:17:58,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:17:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5155 transitions. [2021-11-02 23:17:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:17:58,228 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:17:58,229 INFO L513 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] [2021-11-02 23:17:58,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 23:17:58,229 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:17:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:17:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1432283502, now seen corresponding path program 1 times [2021-11-02 23:17:58,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:17:58,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522083143] [2021-11-02 23:17:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:17:58,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:17:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:17:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:58,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:17:58,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522083143] [2021-11-02 23:17:58,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522083143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:17:58,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:17:58,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:17:58,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564082931] [2021-11-02 23:17:58,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:17:58,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:17:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:17:58,620 INFO L87 Difference]: Start difference. First operand 3560 states and 5155 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:04,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:04,013 INFO L93 Difference]: Finished difference Result 9264 states and 13490 transitions. [2021-11-02 23:18:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:18:04,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:04,037 INFO L225 Difference]: With dead ends: 9264 [2021-11-02 23:18:04,038 INFO L226 Difference]: Without dead ends: 8428 [2021-11-02 23:18:04,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:18:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8428 states. [2021-11-02 23:18:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8428 to 3560. [2021-11-02 23:18:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.45964316057774) internal successors, (5154), 3559 states have internal predecessors, (5154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5154 transitions. [2021-11-02 23:18:04,573 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5154 transitions. Word has length 110 [2021-11-02 23:18:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:04,573 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5154 transitions. [2021-11-02 23:18:04,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5154 transitions. [2021-11-02 23:18:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:18:04,581 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:04,581 INFO L513 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] [2021-11-02 23:18:04,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 23:18:04,582 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:04,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:04,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1044438404, now seen corresponding path program 1 times [2021-11-02 23:18:04,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:04,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33497718] [2021-11-02 23:18:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:04,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:04,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:04,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33497718] [2021-11-02 23:18:04,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33497718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:04,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:04,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:18:04,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542909131] [2021-11-02 23:18:04,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:18:04,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:18:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:18:04,971 INFO L87 Difference]: Start difference. First operand 3560 states and 5154 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:10,934 INFO L93 Difference]: Finished difference Result 13018 states and 19066 transitions. [2021-11-02 23:18:10,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:18:10,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:11,014 INFO L225 Difference]: With dead ends: 13018 [2021-11-02 23:18:11,016 INFO L226 Difference]: Without dead ends: 12302 [2021-11-02 23:18:11,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:18:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2021-11-02 23:18:11,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 3564. [2021-11-02 23:18:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.459123055162659) internal successors, (5158), 3563 states have internal predecessors, (5158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5158 transitions. [2021-11-02 23:18:11,990 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5158 transitions. Word has length 110 [2021-11-02 23:18:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:11,994 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5158 transitions. [2021-11-02 23:18:11,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5158 transitions. [2021-11-02 23:18:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:18:12,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:12,015 INFO L513 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] [2021-11-02 23:18:12,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-02 23:18:12,016 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash 237293966, now seen corresponding path program 1 times [2021-11-02 23:18:12,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:12,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594987618] [2021-11-02 23:18:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:12,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:12,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:12,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594987618] [2021-11-02 23:18:12,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594987618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:12,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:12,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:12,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312885891] [2021-11-02 23:18:12,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:12,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:12,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:12,519 INFO L87 Difference]: Start difference. First operand 3564 states and 5158 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:15,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:15,890 INFO L93 Difference]: Finished difference Result 7721 states and 11273 transitions. [2021-11-02 23:18:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:18:15,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:15,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:15,908 INFO L225 Difference]: With dead ends: 7721 [2021-11-02 23:18:15,908 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:18:15,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:18:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:18:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3564. [2021-11-02 23:18:16,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.4588401697312587) internal successors, (5157), 3563 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5157 transitions. [2021-11-02 23:18:16,523 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5157 transitions. Word has length 110 [2021-11-02 23:18:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:16,523 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5157 transitions. [2021-11-02 23:18:16,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5157 transitions. [2021-11-02 23:18:16,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:18:16,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:16,531 INFO L513 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] [2021-11-02 23:18:16,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-02 23:18:16,532 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:16,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1993529301, now seen corresponding path program 1 times [2021-11-02 23:18:16,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:16,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106194529] [2021-11-02 23:18:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:16,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:16,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:16,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106194529] [2021-11-02 23:18:16,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106194529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:16,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:16,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:16,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148976498] [2021-11-02 23:18:16,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:16,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:16,767 INFO L87 Difference]: Start difference. First operand 3564 states and 5157 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:20,087 INFO L93 Difference]: Finished difference Result 5932 states and 8614 transitions. [2021-11-02 23:18:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:18:20,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:20,095 INFO L225 Difference]: With dead ends: 5932 [2021-11-02 23:18:20,095 INFO L226 Difference]: Without dead ends: 4994 [2021-11-02 23:18:20,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:18:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2021-11-02 23:18:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 3564. [2021-11-02 23:18:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.4582743988684583) internal successors, (5155), 3563 states have internal predecessors, (5155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5155 transitions. [2021-11-02 23:18:20,676 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5155 transitions. Word has length 110 [2021-11-02 23:18:20,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:20,676 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5155 transitions. [2021-11-02 23:18:20,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5155 transitions. [2021-11-02 23:18:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:18:20,684 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:20,685 INFO L513 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] [2021-11-02 23:18:20,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-02 23:18:20,685 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:20,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:20,686 INFO L85 PathProgramCache]: Analyzing trace with hash 8802059, now seen corresponding path program 1 times [2021-11-02 23:18:20,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:20,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140832069] [2021-11-02 23:18:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:20,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:20,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:20,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140832069] [2021-11-02 23:18:20,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140832069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:20,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:20,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:20,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833279376] [2021-11-02 23:18:20,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:20,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:20,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:20,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:20,951 INFO L87 Difference]: Start difference. First operand 3564 states and 5155 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:24,789 INFO L93 Difference]: Finished difference Result 7772 states and 11341 transitions. [2021-11-02 23:18:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:18:24,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:24,807 INFO L225 Difference]: With dead ends: 7772 [2021-11-02 23:18:24,807 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:18:24,812 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:18:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:18:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3564. [2021-11-02 23:18:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.4577086280056577) internal successors, (5153), 3563 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5153 transitions. [2021-11-02 23:18:25,416 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5153 transitions. Word has length 110 [2021-11-02 23:18:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:25,417 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5153 transitions. [2021-11-02 23:18:25,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5153 transitions. [2021-11-02 23:18:25,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 23:18:25,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:25,426 INFO L513 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] [2021-11-02 23:18:25,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-02 23:18:25,427 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1694810938, now seen corresponding path program 1 times [2021-11-02 23:18:25,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:25,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478995094] [2021-11-02 23:18:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:25,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:25,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:25,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478995094] [2021-11-02 23:18:25,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478995094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:25,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:25,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-02 23:18:25,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899727643] [2021-11-02 23:18:25,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 23:18:25,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:25,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 23:18:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:18:25,685 INFO L87 Difference]: Start difference. First operand 3564 states and 5153 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:30,255 INFO L93 Difference]: Finished difference Result 7168 states and 10394 transitions. [2021-11-02 23:18:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-02 23:18:30,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-02 23:18:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:30,265 INFO L225 Difference]: With dead ends: 7168 [2021-11-02 23:18:30,266 INFO L226 Difference]: Without dead ends: 6127 [2021-11-02 23:18:30,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:18:30,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2021-11-02 23:18:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 3564. [2021-11-02 23:18:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.4574257425742574) internal successors, (5152), 3563 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5152 transitions. [2021-11-02 23:18:30,793 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5152 transitions. Word has length 110 [2021-11-02 23:18:30,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:30,793 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5152 transitions. [2021-11-02 23:18:30,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5152 transitions. [2021-11-02 23:18:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 23:18:30,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:30,801 INFO L513 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] [2021-11-02 23:18:30,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-02 23:18:30,802 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:30,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:30,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1235444325, now seen corresponding path program 1 times [2021-11-02 23:18:30,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:30,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758837747] [2021-11-02 23:18:30,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:30,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:31,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:31,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758837747] [2021-11-02 23:18:31,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758837747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:31,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:31,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:31,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618449951] [2021-11-02 23:18:31,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:31,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:31,029 INFO L87 Difference]: Start difference. First operand 3564 states and 5152 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:34,383 INFO L93 Difference]: Finished difference Result 5830 states and 8457 transitions. [2021-11-02 23:18:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:18:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 23:18:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:34,390 INFO L225 Difference]: With dead ends: 5830 [2021-11-02 23:18:34,390 INFO L226 Difference]: Without dead ends: 4994 [2021-11-02 23:18:34,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:18:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2021-11-02 23:18:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 3564. [2021-11-02 23:18:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3535 states have (on average 1.457142857142857) internal successors, (5151), 3563 states have internal predecessors, (5151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 5151 transitions. [2021-11-02 23:18:34,866 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 5151 transitions. Word has length 111 [2021-11-02 23:18:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:34,867 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 5151 transitions. [2021-11-02 23:18:34,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 5151 transitions. [2021-11-02 23:18:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 23:18:34,874 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:34,874 INFO L513 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] [2021-11-02 23:18:34,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-02 23:18:34,875 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:34,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1587170249, now seen corresponding path program 1 times [2021-11-02 23:18:34,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:34,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820301363] [2021-11-02 23:18:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:34,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:35,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:35,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820301363] [2021-11-02 23:18:35,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820301363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:35,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:35,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:35,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917311909] [2021-11-02 23:18:35,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:35,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:35,098 INFO L87 Difference]: Start difference. First operand 3564 states and 5151 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:38,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:38,921 INFO L93 Difference]: Finished difference Result 7728 states and 11272 transitions. [2021-11-02 23:18:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:18:38,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 23:18:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:38,930 INFO L225 Difference]: With dead ends: 7728 [2021-11-02 23:18:38,930 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:18:38,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:18:38,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:18:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3560. [2021-11-02 23:18:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4573775134522797) internal successors, (5146), 3559 states have internal predecessors, (5146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5146 transitions. [2021-11-02 23:18:39,454 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5146 transitions. Word has length 111 [2021-11-02 23:18:39,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:39,455 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5146 transitions. [2021-11-02 23:18:39,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5146 transitions. [2021-11-02 23:18:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 23:18:39,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:39,463 INFO L513 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] [2021-11-02 23:18:39,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-02 23:18:39,463 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:39,464 INFO L85 PathProgramCache]: Analyzing trace with hash 177268838, now seen corresponding path program 1 times [2021-11-02 23:18:39,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:39,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128034337] [2021-11-02 23:18:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:39,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:39,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:39,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128034337] [2021-11-02 23:18:39,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128034337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:39,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:39,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:39,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177321493] [2021-11-02 23:18:39,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:39,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:39,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:39,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:39,664 INFO L87 Difference]: Start difference. First operand 3560 states and 5146 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:42,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:42,273 INFO L93 Difference]: Finished difference Result 5629 states and 8176 transitions. [2021-11-02 23:18:42,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 23:18:42,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 23:18:42,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:42,289 INFO L225 Difference]: With dead ends: 5629 [2021-11-02 23:18:42,289 INFO L226 Difference]: Without dead ends: 4588 [2021-11-02 23:18:42,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:18:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2021-11-02 23:18:43,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 3560. [2021-11-02 23:18:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4570943075615972) internal successors, (5145), 3559 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5145 transitions. [2021-11-02 23:18:43,015 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5145 transitions. Word has length 111 [2021-11-02 23:18:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:43,015 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5145 transitions. [2021-11-02 23:18:43,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5145 transitions. [2021-11-02 23:18:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:18:43,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:43,023 INFO L513 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] [2021-11-02 23:18:43,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-02 23:18:43,024 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash 28367950, now seen corresponding path program 1 times [2021-11-02 23:18:43,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:43,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003858914] [2021-11-02 23:18:43,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:43,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:43,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:43,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003858914] [2021-11-02 23:18:43,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003858914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:43,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:43,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:18:43,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596435888] [2021-11-02 23:18:43,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:18:43,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:43,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:18:43,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:18:43,329 INFO L87 Difference]: Start difference. First operand 3560 states and 5145 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:50,221 INFO L93 Difference]: Finished difference Result 13146 states and 19232 transitions. [2021-11-02 23:18:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:18:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:18:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:50,238 INFO L225 Difference]: With dead ends: 13146 [2021-11-02 23:18:50,238 INFO L226 Difference]: Without dead ends: 12366 [2021-11-02 23:18:50,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:18:50,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12366 states. [2021-11-02 23:18:50,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12366 to 3568. [2021-11-02 23:18:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4560610341904492) internal successors, (5153), 3567 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5153 transitions. [2021-11-02 23:18:50,844 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5153 transitions. Word has length 112 [2021-11-02 23:18:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:50,845 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5153 transitions. [2021-11-02 23:18:50,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5153 transitions. [2021-11-02 23:18:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:18:50,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:50,852 INFO L513 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] [2021-11-02 23:18:50,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-02 23:18:50,853 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:50,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1907876888, now seen corresponding path program 1 times [2021-11-02 23:18:50,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:50,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538162271] [2021-11-02 23:18:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:50,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:51,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:51,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538162271] [2021-11-02 23:18:51,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538162271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:51,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:51,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:51,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375669157] [2021-11-02 23:18:51,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:51,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:51,058 INFO L87 Difference]: Start difference. First operand 3568 states and 5153 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:55,517 INFO L93 Difference]: Finished difference Result 7060 states and 10300 transitions. [2021-11-02 23:18:55,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:18:55,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:18:55,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:55,530 INFO L225 Difference]: With dead ends: 7060 [2021-11-02 23:18:55,530 INFO L226 Difference]: Without dead ends: 6346 [2021-11-02 23:18:55,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:18:55,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2021-11-02 23:18:56,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 3568. [2021-11-02 23:18:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4554959027974004) internal successors, (5151), 3567 states have internal predecessors, (5151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5151 transitions. [2021-11-02 23:18:56,663 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5151 transitions. Word has length 112 [2021-11-02 23:18:56,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:56,663 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5151 transitions. [2021-11-02 23:18:56,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:18:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5151 transitions. [2021-11-02 23:18:56,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:18:56,671 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:18:56,671 INFO L513 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] [2021-11-02 23:18:56,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-02 23:18:56,672 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:18:56,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:56,673 INFO L85 PathProgramCache]: Analyzing trace with hash 230381962, now seen corresponding path program 1 times [2021-11-02 23:18:56,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:56,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95326598] [2021-11-02 23:18:56,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:56,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:57,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:57,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95326598] [2021-11-02 23:18:57,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95326598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:57,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:57,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:18:57,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393869831] [2021-11-02 23:18:57,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:18:57,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:18:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:18:57,170 INFO L87 Difference]: Start difference. First operand 3568 states and 5151 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:01,545 INFO L93 Difference]: Finished difference Result 5782 states and 8378 transitions. [2021-11-02 23:19:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:01,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:01,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:01,555 INFO L225 Difference]: With dead ends: 5782 [2021-11-02 23:19:01,555 INFO L226 Difference]: Without dead ends: 5022 [2021-11-02 23:19:01,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:19:01,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2021-11-02 23:19:02,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3568. [2021-11-02 23:19:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4543656400113025) internal successors, (5147), 3567 states have internal predecessors, (5147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5147 transitions. [2021-11-02 23:19:02,452 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5147 transitions. Word has length 112 [2021-11-02 23:19:02,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:02,453 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5147 transitions. [2021-11-02 23:19:02,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5147 transitions. [2021-11-02 23:19:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:02,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:02,461 INFO L513 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] [2021-11-02 23:19:02,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-02 23:19:02,462 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1790606885, now seen corresponding path program 1 times [2021-11-02 23:19:02,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:02,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964180391] [2021-11-02 23:19:02,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:02,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:02,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:02,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:02,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964180391] [2021-11-02 23:19:02,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964180391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:02,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:02,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:02,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340186750] [2021-11-02 23:19:02,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:02,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:02,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:02,972 INFO L87 Difference]: Start difference. First operand 3568 states and 5147 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:08,861 INFO L93 Difference]: Finished difference Result 7052 states and 10285 transitions. [2021-11-02 23:19:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:19:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:08,873 INFO L225 Difference]: With dead ends: 7052 [2021-11-02 23:19:08,873 INFO L226 Difference]: Without dead ends: 6346 [2021-11-02 23:19:08,876 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:19:08,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2021-11-02 23:19:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 3568. [2021-11-02 23:19:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4538005086182537) internal successors, (5145), 3567 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5145 transitions. [2021-11-02 23:19:09,609 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5145 transitions. Word has length 112 [2021-11-02 23:19:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:09,609 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5145 transitions. [2021-11-02 23:19:09,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5145 transitions. [2021-11-02 23:19:09,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:09,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:09,615 INFO L513 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] [2021-11-02 23:19:09,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-02 23:19:09,615 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash -582562824, now seen corresponding path program 1 times [2021-11-02 23:19:09,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:09,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78673198] [2021-11-02 23:19:09,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:09,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:09,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:09,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78673198] [2021-11-02 23:19:09,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78673198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:09,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:09,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:09,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218936604] [2021-11-02 23:19:09,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:09,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:09,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:09,862 INFO L87 Difference]: Start difference. First operand 3568 states and 5145 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:13,837 INFO L93 Difference]: Finished difference Result 5732 states and 8300 transitions. [2021-11-02 23:19:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:13,846 INFO L225 Difference]: With dead ends: 5732 [2021-11-02 23:19:13,846 INFO L226 Difference]: Without dead ends: 5022 [2021-11-02 23:19:13,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:19:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2021-11-02 23:19:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3568. [2021-11-02 23:19:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.453235377225205) internal successors, (5143), 3567 states have internal predecessors, (5143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5143 transitions. [2021-11-02 23:19:14,768 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5143 transitions. Word has length 112 [2021-11-02 23:19:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:14,771 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5143 transitions. [2021-11-02 23:19:14,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:14,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5143 transitions. [2021-11-02 23:19:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:14,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:14,779 INFO L513 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] [2021-11-02 23:19:14,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-02 23:19:14,779 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:14,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash 977250997, now seen corresponding path program 1 times [2021-11-02 23:19:14,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:14,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991997005] [2021-11-02 23:19:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:14,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:15,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:15,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991997005] [2021-11-02 23:19:15,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991997005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:15,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:15,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:15,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871514332] [2021-11-02 23:19:15,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:15,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:15,022 INFO L87 Difference]: Start difference. First operand 3568 states and 5143 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:19,446 INFO L93 Difference]: Finished difference Result 7032 states and 10252 transitions. [2021-11-02 23:19:19,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:19:19,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:19,457 INFO L225 Difference]: With dead ends: 7032 [2021-11-02 23:19:19,457 INFO L226 Difference]: Without dead ends: 6346 [2021-11-02 23:19:19,459 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:19:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2021-11-02 23:19:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 3568. [2021-11-02 23:19:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4529528115286805) internal successors, (5142), 3567 states have internal predecessors, (5142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5142 transitions. [2021-11-02 23:19:20,115 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5142 transitions. Word has length 112 [2021-11-02 23:19:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:20,116 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5142 transitions. [2021-11-02 23:19:20,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5142 transitions. [2021-11-02 23:19:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:20,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:20,121 INFO L513 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] [2021-11-02 23:19:20,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-02 23:19:20,122 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1047979927, now seen corresponding path program 1 times [2021-11-02 23:19:20,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:20,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678723396] [2021-11-02 23:19:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:20,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:20,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:20,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678723396] [2021-11-02 23:19:20,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678723396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:20,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:20,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:19:20,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433286472] [2021-11-02 23:19:20,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:19:20,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:19:20,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:19:20,420 INFO L87 Difference]: Start difference. First operand 3568 states and 5142 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:27,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:27,908 INFO L93 Difference]: Finished difference Result 8216 states and 11906 transitions. [2021-11-02 23:19:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:19:27,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:27,917 INFO L225 Difference]: With dead ends: 8216 [2021-11-02 23:19:27,917 INFO L226 Difference]: Without dead ends: 7530 [2021-11-02 23:19:27,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:19:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7530 states. [2021-11-02 23:19:28,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7530 to 3568. [2021-11-02 23:19:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4526702458321559) internal successors, (5141), 3567 states have internal predecessors, (5141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5141 transitions. [2021-11-02 23:19:28,627 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5141 transitions. Word has length 112 [2021-11-02 23:19:28,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:28,627 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5141 transitions. [2021-11-02 23:19:28,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5141 transitions. [2021-11-02 23:19:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:28,632 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:28,633 INFO L513 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] [2021-11-02 23:19:28,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-02 23:19:28,633 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash -619395701, now seen corresponding path program 1 times [2021-11-02 23:19:28,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:28,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631498916] [2021-11-02 23:19:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:28,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:28,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:28,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631498916] [2021-11-02 23:19:28,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631498916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:28,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:28,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:28,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688739251] [2021-11-02 23:19:28,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:28,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:28,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:28,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:28,881 INFO L87 Difference]: Start difference. First operand 3568 states and 5141 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:33,393 INFO L93 Difference]: Finished difference Result 7030 states and 10248 transitions. [2021-11-02 23:19:33,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:19:33,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:33,401 INFO L225 Difference]: With dead ends: 7030 [2021-11-02 23:19:33,401 INFO L226 Difference]: Without dead ends: 6346 [2021-11-02 23:19:33,403 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:19:33,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2021-11-02 23:19:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 3568. [2021-11-02 23:19:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4523876801356315) internal successors, (5140), 3567 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5140 transitions. [2021-11-02 23:19:34,075 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5140 transitions. Word has length 112 [2021-11-02 23:19:34,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:34,076 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5140 transitions. [2021-11-02 23:19:34,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:34,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5140 transitions. [2021-11-02 23:19:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:34,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:34,080 INFO L513 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] [2021-11-02 23:19:34,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-02 23:19:34,080 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:34,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2062151563, now seen corresponding path program 1 times [2021-11-02 23:19:34,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:34,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994967778] [2021-11-02 23:19:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:34,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:34,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:34,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994967778] [2021-11-02 23:19:34,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994967778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:34,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:34,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:19:34,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708900287] [2021-11-02 23:19:34,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:19:34,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:19:34,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:19:34,338 INFO L87 Difference]: Start difference. First operand 3568 states and 5140 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:44,824 INFO L93 Difference]: Finished difference Result 15698 states and 22898 transitions. [2021-11-02 23:19:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:19:44,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:44,850 INFO L225 Difference]: With dead ends: 15698 [2021-11-02 23:19:44,850 INFO L226 Difference]: Without dead ends: 14934 [2021-11-02 23:19:44,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:19:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2021-11-02 23:19:45,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 3576. [2021-11-02 23:19:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4513673526924162) internal successors, (5148), 3575 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5148 transitions. [2021-11-02 23:19:45,548 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5148 transitions. Word has length 112 [2021-11-02 23:19:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:45,549 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5148 transitions. [2021-11-02 23:19:45,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5148 transitions. [2021-11-02 23:19:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:45,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:45,554 INFO L513 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] [2021-11-02 23:19:45,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-02 23:19:45,555 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -353306795, now seen corresponding path program 1 times [2021-11-02 23:19:45,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:45,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877559741] [2021-11-02 23:19:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:45,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:45,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:45,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877559741] [2021-11-02 23:19:45,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877559741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:45,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:45,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:45,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663949082] [2021-11-02 23:19:45,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:45,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:45,943 INFO L87 Difference]: Start difference. First operand 3576 states and 5148 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:50,122 INFO L93 Difference]: Finished difference Result 5740 states and 8303 transitions. [2021-11-02 23:19:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:50,129 INFO L225 Difference]: With dead ends: 5740 [2021-11-02 23:19:50,129 INFO L226 Difference]: Without dead ends: 5030 [2021-11-02 23:19:50,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:19:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2021-11-02 23:19:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 3576. [2021-11-02 23:19:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4508034959120384) internal successors, (5146), 3575 states have internal predecessors, (5146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5146 transitions. [2021-11-02 23:19:50,857 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5146 transitions. Word has length 112 [2021-11-02 23:19:50,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:50,858 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5146 transitions. [2021-11-02 23:19:50,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:50,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5146 transitions. [2021-11-02 23:19:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:50,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:50,863 INFO L513 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] [2021-11-02 23:19:50,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-02 23:19:50,863 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:50,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:50,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2030801721, now seen corresponding path program 1 times [2021-11-02 23:19:50,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:50,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005973728] [2021-11-02 23:19:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:50,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:51,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:51,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005973728] [2021-11-02 23:19:51,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005973728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:51,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:51,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:51,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428739353] [2021-11-02 23:19:51,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:51,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:51,058 INFO L87 Difference]: Start difference. First operand 3576 states and 5146 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:54,981 INFO L93 Difference]: Finished difference Result 5778 states and 8357 transitions. [2021-11-02 23:19:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:54,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:19:54,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:54,987 INFO L225 Difference]: With dead ends: 5778 [2021-11-02 23:19:54,987 INFO L226 Difference]: Without dead ends: 5030 [2021-11-02 23:19:54,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:19:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2021-11-02 23:19:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 3576. [2021-11-02 23:19:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4496757823512827) internal successors, (5142), 3575 states have internal predecessors, (5142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5142 transitions. [2021-11-02 23:19:55,653 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5142 transitions. Word has length 112 [2021-11-02 23:19:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:55,653 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5142 transitions. [2021-11-02 23:19:55,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:19:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5142 transitions. [2021-11-02 23:19:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:19:55,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:55,657 INFO L513 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] [2021-11-02 23:19:55,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-02 23:19:55,658 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:19:55,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash -469685084, now seen corresponding path program 1 times [2021-11-02 23:19:55,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:19:55,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379588487] [2021-11-02 23:19:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:55,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:19:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:55,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:19:55,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379588487] [2021-11-02 23:19:55,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379588487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:55,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:55,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:19:55,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955818437] [2021-11-02 23:19:55,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:19:55,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:19:55,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:19:55,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:19:55,851 INFO L87 Difference]: Start difference. First operand 3576 states and 5142 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:00,658 INFO L93 Difference]: Finished difference Result 7060 states and 10280 transitions. [2021-11-02 23:20:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:20:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:20:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:00,666 INFO L225 Difference]: With dead ends: 7060 [2021-11-02 23:20:00,666 INFO L226 Difference]: Without dead ends: 6354 [2021-11-02 23:20:00,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:20:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2021-11-02 23:20:01,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 3576. [2021-11-02 23:20:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.449111925570905) internal successors, (5140), 3575 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5140 transitions. [2021-11-02 23:20:01,344 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5140 transitions. Word has length 112 [2021-11-02 23:20:01,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:01,344 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5140 transitions. [2021-11-02 23:20:01,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5140 transitions. [2021-11-02 23:20:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:20:01,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:01,348 INFO L513 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] [2021-11-02 23:20:01,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-02 23:20:01,348 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:01,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash -79489975, now seen corresponding path program 1 times [2021-11-02 23:20:01,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:01,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099045847] [2021-11-02 23:20:01,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:01,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:01,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:01,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099045847] [2021-11-02 23:20:01,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099045847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:01,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:01,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:20:01,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175026875] [2021-11-02 23:20:01,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:20:01,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:20:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:20:01,635 INFO L87 Difference]: Start difference. First operand 3576 states and 5140 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:09,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:09,959 INFO L93 Difference]: Finished difference Result 9656 states and 13995 transitions. [2021-11-02 23:20:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:20:09,960 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:20:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:09,970 INFO L225 Difference]: With dead ends: 9656 [2021-11-02 23:20:09,970 INFO L226 Difference]: Without dead ends: 8632 [2021-11-02 23:20:09,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:20:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8632 states. [2021-11-02 23:20:10,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8632 to 3576. [2021-11-02 23:20:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4485480687905272) internal successors, (5138), 3575 states have internal predecessors, (5138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5138 transitions. [2021-11-02 23:20:10,703 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5138 transitions. Word has length 112 [2021-11-02 23:20:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:10,703 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5138 transitions. [2021-11-02 23:20:10,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5138 transitions. [2021-11-02 23:20:10,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:20:10,707 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:10,707 INFO L513 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] [2021-11-02 23:20:10,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-02 23:20:10,707 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:10,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1562562040, now seen corresponding path program 1 times [2021-11-02 23:20:10,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:10,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599847103] [2021-11-02 23:20:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:10,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:10,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:10,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:10,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599847103] [2021-11-02 23:20:10,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599847103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:10,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:10,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:10,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237952411] [2021-11-02 23:20:10,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:10,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:10,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:10,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:10,908 INFO L87 Difference]: Start difference. First operand 3576 states and 5138 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:14,537 INFO L93 Difference]: Finished difference Result 5790 states and 8365 transitions. [2021-11-02 23:20:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:14,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:20:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:14,543 INFO L225 Difference]: With dead ends: 5790 [2021-11-02 23:20:14,543 INFO L226 Difference]: Without dead ends: 5030 [2021-11-02 23:20:14,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:20:14,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2021-11-02 23:20:15,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 3576. [2021-11-02 23:20:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4474203552297717) internal successors, (5134), 3575 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5134 transitions. [2021-11-02 23:20:15,226 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5134 transitions. Word has length 112 [2021-11-02 23:20:15,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:15,227 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5134 transitions. [2021-11-02 23:20:15,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5134 transitions. [2021-11-02 23:20:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:20:15,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:15,230 INFO L513 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] [2021-11-02 23:20:15,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-02 23:20:15,230 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:15,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:15,231 INFO L85 PathProgramCache]: Analyzing trace with hash -725792126, now seen corresponding path program 1 times [2021-11-02 23:20:15,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:15,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594459558] [2021-11-02 23:20:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:15,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:15,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:15,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594459558] [2021-11-02 23:20:15,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594459558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:15,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:15,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:15,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41103635] [2021-11-02 23:20:15,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:15,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:15,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:15,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:15,412 INFO L87 Difference]: Start difference. First operand 3576 states and 5134 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:20,042 INFO L93 Difference]: Finished difference Result 7892 states and 11468 transitions. [2021-11-02 23:20:20,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:20,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-02 23:20:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:20,051 INFO L225 Difference]: With dead ends: 7892 [2021-11-02 23:20:20,051 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:20:20,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:20:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:20:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3576. [2021-11-02 23:20:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.446292641669016) internal successors, (5130), 3575 states have internal predecessors, (5130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5130 transitions. [2021-11-02 23:20:20,837 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5130 transitions. Word has length 112 [2021-11-02 23:20:20,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:20,837 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5130 transitions. [2021-11-02 23:20:20,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:20,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5130 transitions. [2021-11-02 23:20:20,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:20:20,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:20,841 INFO L513 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] [2021-11-02 23:20:20,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-02 23:20:20,841 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:20,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:20,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1990034123, now seen corresponding path program 1 times [2021-11-02 23:20:20,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:20,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101468614] [2021-11-02 23:20:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:20,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:21,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:21,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101468614] [2021-11-02 23:20:21,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101468614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:21,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:21,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:21,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033972239] [2021-11-02 23:20:21,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:21,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:21,031 INFO L87 Difference]: Start difference. First operand 3576 states and 5130 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:25,743 INFO L93 Difference]: Finished difference Result 7792 states and 11316 transitions. [2021-11-02 23:20:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:25,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-02 23:20:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:25,752 INFO L225 Difference]: With dead ends: 7792 [2021-11-02 23:20:25,752 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:20:25,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:20:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:20:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3568. [2021-11-02 23:20:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4467363662051427) internal successors, (5120), 3567 states have internal predecessors, (5120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5120 transitions. [2021-11-02 23:20:26,544 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5120 transitions. Word has length 113 [2021-11-02 23:20:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:26,544 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5120 transitions. [2021-11-02 23:20:26,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:26,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5120 transitions. [2021-11-02 23:20:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:20:26,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:26,550 INFO L513 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] [2021-11-02 23:20:26,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-02 23:20:26,550 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1057837107, now seen corresponding path program 1 times [2021-11-02 23:20:26,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:26,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389487377] [2021-11-02 23:20:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:26,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:26,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:26,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389487377] [2021-11-02 23:20:26,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389487377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:26,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:26,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:26,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717732768] [2021-11-02 23:20:26,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:26,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:26,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:26,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:26,747 INFO L87 Difference]: Start difference. First operand 3568 states and 5120 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:31,189 INFO L93 Difference]: Finished difference Result 5708 states and 8243 transitions. [2021-11-02 23:20:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:31,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-02 23:20:31,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:31,194 INFO L225 Difference]: With dead ends: 5708 [2021-11-02 23:20:31,195 INFO L226 Difference]: Without dead ends: 5022 [2021-11-02 23:20:31,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:20:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2021-11-02 23:20:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3568. [2021-11-02 23:20:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4464538005086183) internal successors, (5119), 3567 states have internal predecessors, (5119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5119 transitions. [2021-11-02 23:20:31,895 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5119 transitions. Word has length 113 [2021-11-02 23:20:31,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:31,895 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5119 transitions. [2021-11-02 23:20:31,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5119 transitions. [2021-11-02 23:20:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:20:31,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:31,899 INFO L513 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] [2021-11-02 23:20:31,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-02 23:20:31,899 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:31,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1166295979, now seen corresponding path program 1 times [2021-11-02 23:20:31,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:31,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214191330] [2021-11-02 23:20:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:31,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:32,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:32,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214191330] [2021-11-02 23:20:32,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214191330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:32,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:32,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:32,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180298655] [2021-11-02 23:20:32,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:32,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:32,091 INFO L87 Difference]: Start difference. First operand 3568 states and 5119 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:36,212 INFO L93 Difference]: Finished difference Result 6022 states and 8684 transitions. [2021-11-02 23:20:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-02 23:20:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:36,218 INFO L225 Difference]: With dead ends: 6022 [2021-11-02 23:20:36,218 INFO L226 Difference]: Without dead ends: 4998 [2021-11-02 23:20:36,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:20:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2021-11-02 23:20:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 3568. [2021-11-02 23:20:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4458886691155695) internal successors, (5117), 3567 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5117 transitions. [2021-11-02 23:20:36,931 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5117 transitions. Word has length 113 [2021-11-02 23:20:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:36,931 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5117 transitions. [2021-11-02 23:20:36,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5117 transitions. [2021-11-02 23:20:36,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:20:36,936 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:36,937 INFO L513 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] [2021-11-02 23:20:36,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-02 23:20:36,937 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:36,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:36,938 INFO L85 PathProgramCache]: Analyzing trace with hash 927714838, now seen corresponding path program 1 times [2021-11-02 23:20:36,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:36,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839333416] [2021-11-02 23:20:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:36,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:37,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:37,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839333416] [2021-11-02 23:20:37,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839333416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:37,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:37,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:37,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512918923] [2021-11-02 23:20:37,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:37,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:37,265 INFO L87 Difference]: Start difference. First operand 3568 states and 5117 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:41,630 INFO L93 Difference]: Finished difference Result 7776 states and 11286 transitions. [2021-11-02 23:20:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:41,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-02 23:20:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:41,639 INFO L225 Difference]: With dead ends: 7776 [2021-11-02 23:20:41,639 INFO L226 Difference]: Without dead ends: 7012 [2021-11-02 23:20:41,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:20:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-11-02 23:20:42,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 3560. [2021-11-02 23:20:42,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4463324837156613) internal successors, (5107), 3559 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5107 transitions. [2021-11-02 23:20:42,318 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5107 transitions. Word has length 113 [2021-11-02 23:20:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:42,318 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5107 transitions. [2021-11-02 23:20:42,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5107 transitions. [2021-11-02 23:20:42,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:20:42,321 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:42,321 INFO L513 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] [2021-11-02 23:20:42,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-02 23:20:42,321 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:42,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -946629140, now seen corresponding path program 1 times [2021-11-02 23:20:42,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:42,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496702370] [2021-11-02 23:20:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:42,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:42,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:42,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496702370] [2021-11-02 23:20:42,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496702370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:42,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:42,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:42,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111935840] [2021-11-02 23:20:42,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:42,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:42,520 INFO L87 Difference]: Start difference. First operand 3560 states and 5107 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:46,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:46,538 INFO L93 Difference]: Finished difference Result 5780 states and 8342 transitions. [2021-11-02 23:20:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:20:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:46,545 INFO L225 Difference]: With dead ends: 5780 [2021-11-02 23:20:46,545 INFO L226 Difference]: Without dead ends: 5014 [2021-11-02 23:20:46,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:20:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2021-11-02 23:20:47,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 3560. [2021-11-02 23:20:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.445199660152931) internal successors, (5103), 3559 states have internal predecessors, (5103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5103 transitions. [2021-11-02 23:20:47,449 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5103 transitions. Word has length 114 [2021-11-02 23:20:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:47,449 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5103 transitions. [2021-11-02 23:20:47,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5103 transitions. [2021-11-02 23:20:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:20:47,452 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:47,452 INFO L513 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] [2021-11-02 23:20:47,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-02 23:20:47,452 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:47,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1355474368, now seen corresponding path program 1 times [2021-11-02 23:20:47,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:47,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113979151] [2021-11-02 23:20:47,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:47,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:47,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:47,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113979151] [2021-11-02 23:20:47,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113979151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:47,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:47,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:20:47,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884673767] [2021-11-02 23:20:47,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:20:47,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:20:47,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:20:47,603 INFO L87 Difference]: Start difference. First operand 3560 states and 5103 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:54,706 INFO L93 Difference]: Finished difference Result 7576 states and 10964 transitions. [2021-11-02 23:20:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:20:54,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:20:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:20:54,717 INFO L225 Difference]: With dead ends: 7576 [2021-11-02 23:20:54,732 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:20:54,735 INFO L786 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 [2021-11-02 23:20:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:20:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3560. [2021-11-02 23:20:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4440668365902012) internal successors, (5099), 3559 states have internal predecessors, (5099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5099 transitions. [2021-11-02 23:20:55,974 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5099 transitions. Word has length 114 [2021-11-02 23:20:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:20:55,975 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5099 transitions. [2021-11-02 23:20:55,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:55,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5099 transitions. [2021-11-02 23:20:56,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:20:56,007 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:20:56,008 INFO L513 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] [2021-11-02 23:20:56,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-02 23:20:56,008 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:20:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash -987372193, now seen corresponding path program 1 times [2021-11-02 23:20:56,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:56,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463087197] [2021-11-02 23:20:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:56,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:56,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:56,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463087197] [2021-11-02 23:20:56,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463087197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:56,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:56,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:20:56,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891889003] [2021-11-02 23:20:56,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:20:56,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:20:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:20:56,396 INFO L87 Difference]: Start difference. First operand 3560 states and 5099 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:06,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:06,640 INFO L93 Difference]: Finished difference Result 11554 states and 16773 transitions. [2021-11-02 23:21:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:21:06,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:06,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:06,652 INFO L225 Difference]: With dead ends: 11554 [2021-11-02 23:21:06,653 INFO L226 Difference]: Without dead ends: 10866 [2021-11-02 23:21:06,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:21:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10866 states. [2021-11-02 23:21:07,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10866 to 3568. [2021-11-02 23:21:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.443063012150325) internal successors, (5107), 3567 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5107 transitions. [2021-11-02 23:21:07,545 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5107 transitions. Word has length 114 [2021-11-02 23:21:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:07,545 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5107 transitions. [2021-11-02 23:21:07,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5107 transitions. [2021-11-02 23:21:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:07,548 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:07,549 INFO L513 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] [2021-11-02 23:21:07,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-02 23:21:07,549 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:07,549 INFO L85 PathProgramCache]: Analyzing trace with hash -351977045, now seen corresponding path program 1 times [2021-11-02 23:21:07,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:07,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560368463] [2021-11-02 23:21:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:07,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:07,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:07,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560368463] [2021-11-02 23:21:07,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560368463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:07,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:07,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:21:07,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845684774] [2021-11-02 23:21:07,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:21:07,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:07,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:21:07,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:21:07,725 INFO L87 Difference]: Start difference. First operand 3568 states and 5107 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:13,417 INFO L93 Difference]: Finished difference Result 7550 states and 10923 transitions. [2021-11-02 23:21:13,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:21:13,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:13,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:13,429 INFO L225 Difference]: With dead ends: 7550 [2021-11-02 23:21:13,429 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:21:13,433 INFO L786 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 [2021-11-02 23:21:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:21:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3568. [2021-11-02 23:21:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4424978807572761) internal successors, (5105), 3567 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5105 transitions. [2021-11-02 23:21:14,785 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5105 transitions. Word has length 114 [2021-11-02 23:21:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:14,788 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5105 transitions. [2021-11-02 23:21:14,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5105 transitions. [2021-11-02 23:21:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:14,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:14,793 INFO L513 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] [2021-11-02 23:21:14,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-02 23:21:14,795 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:14,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1812075390, now seen corresponding path program 1 times [2021-11-02 23:21:14,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:14,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513983062] [2021-11-02 23:21:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:14,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:15,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:15,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:15,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513983062] [2021-11-02 23:21:15,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513983062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:15,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:15,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:21:15,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524846393] [2021-11-02 23:21:15,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:21:15,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:21:15,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:21:15,119 INFO L87 Difference]: Start difference. First operand 3568 states and 5105 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:22,525 INFO L93 Difference]: Finished difference Result 7566 states and 10943 transitions. [2021-11-02 23:21:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:21:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:22,538 INFO L225 Difference]: With dead ends: 7566 [2021-11-02 23:21:22,538 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:21:22,542 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:21:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:21:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3568. [2021-11-02 23:21:24,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3539 states have (on average 1.4413676179711783) internal successors, (5101), 3567 states have internal predecessors, (5101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 5101 transitions. [2021-11-02 23:21:24,044 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 5101 transitions. Word has length 114 [2021-11-02 23:21:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:24,045 INFO L470 AbstractCegarLoop]: Abstraction has 3568 states and 5101 transitions. [2021-11-02 23:21:24,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 5101 transitions. [2021-11-02 23:21:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:24,080 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:24,081 INFO L513 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] [2021-11-02 23:21:24,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-02 23:21:24,081 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1847714225, now seen corresponding path program 1 times [2021-11-02 23:21:24,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:24,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875796106] [2021-11-02 23:21:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:24,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:24,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:24,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875796106] [2021-11-02 23:21:24,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875796106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:24,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:24,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:21:24,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56194355] [2021-11-02 23:21:24,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:21:24,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:21:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:21:24,567 INFO L87 Difference]: Start difference. First operand 3568 states and 5101 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:36,125 INFO L93 Difference]: Finished difference Result 12922 states and 18661 transitions. [2021-11-02 23:21:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:21:36,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:36,141 INFO L225 Difference]: With dead ends: 12922 [2021-11-02 23:21:36,141 INFO L226 Difference]: Without dead ends: 12214 [2021-11-02 23:21:36,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:21:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12214 states. [2021-11-02 23:21:37,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12214 to 3584. [2021-11-02 23:21:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 3555 states have (on average 1.4393811533052039) internal successors, (5117), 3583 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5117 transitions. [2021-11-02 23:21:37,179 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5117 transitions. Word has length 114 [2021-11-02 23:21:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:37,180 INFO L470 AbstractCegarLoop]: Abstraction has 3584 states and 5117 transitions. [2021-11-02 23:21:37,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5117 transitions. [2021-11-02 23:21:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:37,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:37,185 INFO L513 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] [2021-11-02 23:21:37,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-02 23:21:37,186 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1611191930, now seen corresponding path program 1 times [2021-11-02 23:21:37,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:37,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924754759] [2021-11-02 23:21:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:37,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:37,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:37,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924754759] [2021-11-02 23:21:37,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924754759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:37,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:37,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:21:37,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688359347] [2021-11-02 23:21:37,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:21:37,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:37,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:21:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:21:37,431 INFO L87 Difference]: Start difference. First operand 3584 states and 5117 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:49,647 INFO L93 Difference]: Finished difference Result 12870 states and 18587 transitions. [2021-11-02 23:21:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:21:49,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:49,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:49,662 INFO L225 Difference]: With dead ends: 12870 [2021-11-02 23:21:49,662 INFO L226 Difference]: Without dead ends: 12188 [2021-11-02 23:21:49,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:21:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12188 states. [2021-11-02 23:21:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12188 to 3592. [2021-11-02 23:21:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3563 states have (on average 1.438394611282627) internal successors, (5125), 3591 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5125 transitions. [2021-11-02 23:21:50,604 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5125 transitions. Word has length 114 [2021-11-02 23:21:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:50,605 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5125 transitions. [2021-11-02 23:21:50,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5125 transitions. [2021-11-02 23:21:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:50,608 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:50,608 INFO L513 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] [2021-11-02 23:21:50,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-02 23:21:50,608 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1368364718, now seen corresponding path program 1 times [2021-11-02 23:21:50,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:50,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602058439] [2021-11-02 23:21:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:50,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:50,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:50,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602058439] [2021-11-02 23:21:50,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602058439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:50,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:50,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:21:50,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688884477] [2021-11-02 23:21:50,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:21:50,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:50,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:21:50,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:21:50,774 INFO L87 Difference]: Start difference. First operand 3592 states and 5125 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:55,972 INFO L93 Difference]: Finished difference Result 7550 states and 10911 transitions. [2021-11-02 23:21:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:21:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:21:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:55,980 INFO L225 Difference]: With dead ends: 7550 [2021-11-02 23:21:55,980 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:21:55,982 INFO L786 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 [2021-11-02 23:21:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:21:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3592. [2021-11-02 23:21:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3563 states have (on average 1.4378332865562728) internal successors, (5123), 3591 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5123 transitions. [2021-11-02 23:21:56,875 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5123 transitions. Word has length 114 [2021-11-02 23:21:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:56,876 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5123 transitions. [2021-11-02 23:21:56,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:21:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5123 transitions. [2021-11-02 23:21:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:21:56,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:21:56,879 INFO L513 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] [2021-11-02 23:21:56,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-02 23:21:56,879 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:21:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2003131297, now seen corresponding path program 1 times [2021-11-02 23:21:56,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:56,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504392114] [2021-11-02 23:21:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:56,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:57,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:57,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504392114] [2021-11-02 23:21:57,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504392114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:57,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:57,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:21:57,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847336357] [2021-11-02 23:21:57,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:21:57,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:21:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:21:57,099 INFO L87 Difference]: Start difference. First operand 3592 states and 5123 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:08,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:22:08,817 INFO L93 Difference]: Finished difference Result 12874 states and 18585 transitions. [2021-11-02 23:22:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:22:08,817 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:22:08,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:22:08,830 INFO L225 Difference]: With dead ends: 12874 [2021-11-02 23:22:08,831 INFO L226 Difference]: Without dead ends: 12190 [2021-11-02 23:22:08,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:22:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12190 states. [2021-11-02 23:22:09,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12190 to 3600. [2021-11-02 23:22:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3571 states have (on average 1.436852422290675) internal successors, (5131), 3599 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5131 transitions. [2021-11-02 23:22:09,837 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5131 transitions. Word has length 114 [2021-11-02 23:22:09,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:22:09,838 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 5131 transitions. [2021-11-02 23:22:09,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5131 transitions. [2021-11-02 23:22:09,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:22:09,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:22:09,841 INFO L513 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] [2021-11-02 23:22:09,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-02 23:22:09,842 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:22:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:22:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1167481258, now seen corresponding path program 1 times [2021-11-02 23:22:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:22:09,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671300341] [2021-11-02 23:22:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:22:09,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:22:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:22:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:22:10,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:22:10,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671300341] [2021-11-02 23:22:10,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671300341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:22:10,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:22:10,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:22:10,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606905087] [2021-11-02 23:22:10,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:22:10,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:22:10,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:22:10,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:22:10,074 INFO L87 Difference]: Start difference. First operand 3600 states and 5131 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:22:22,361 INFO L93 Difference]: Finished difference Result 12854 states and 18559 transitions. [2021-11-02 23:22:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:22:22,366 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:22:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:22:22,379 INFO L225 Difference]: With dead ends: 12854 [2021-11-02 23:22:22,379 INFO L226 Difference]: Without dead ends: 12180 [2021-11-02 23:22:22,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:22:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12180 states. [2021-11-02 23:22:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12180 to 3604. [2021-11-02 23:22:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 3575 states have (on average 1.4363636363636363) internal successors, (5135), 3603 states have internal predecessors, (5135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 5135 transitions. [2021-11-02 23:22:23,355 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 5135 transitions. Word has length 114 [2021-11-02 23:22:23,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:22:23,355 INFO L470 AbstractCegarLoop]: Abstraction has 3604 states and 5135 transitions. [2021-11-02 23:22:23,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 5135 transitions. [2021-11-02 23:22:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:22:23,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:22:23,358 INFO L513 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] [2021-11-02 23:22:23,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-02 23:22:23,359 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:22:23,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:22:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash -340131803, now seen corresponding path program 1 times [2021-11-02 23:22:23,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:22:23,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50672838] [2021-11-02 23:22:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:22:23,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:22:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:22:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:22:23,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:22:23,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50672838] [2021-11-02 23:22:23,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50672838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:22:23,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:22:23,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:22:23,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424481317] [2021-11-02 23:22:23,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:22:23,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:22:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:22:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:22:23,526 INFO L87 Difference]: Start difference. First operand 3604 states and 5135 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:22:28,745 INFO L93 Difference]: Finished difference Result 7541 states and 10894 transitions. [2021-11-02 23:22:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:22:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:22:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:22:28,752 INFO L225 Difference]: With dead ends: 7541 [2021-11-02 23:22:28,752 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:22:28,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:22:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:22:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3604. [2021-11-02 23:22:29,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 3575 states have (on average 1.436083916083916) internal successors, (5134), 3603 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:29,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 5134 transitions. [2021-11-02 23:22:29,695 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 5134 transitions. Word has length 114 [2021-11-02 23:22:29,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:22:29,695 INFO L470 AbstractCegarLoop]: Abstraction has 3604 states and 5134 transitions. [2021-11-02 23:22:29,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 5134 transitions. [2021-11-02 23:22:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:22:29,698 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:22:29,699 INFO L513 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] [2021-11-02 23:22:29,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-02 23:22:29,699 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:22:29,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:22:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1608318294, now seen corresponding path program 1 times [2021-11-02 23:22:29,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:22:29,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281254650] [2021-11-02 23:22:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:22:29,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:22:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:22:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:22:29,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:22:29,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281254650] [2021-11-02 23:22:29,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281254650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:22:29,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:22:29,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:22:29,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113309219] [2021-11-02 23:22:29,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:22:29,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:22:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:22:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:22:29,900 INFO L87 Difference]: Start difference. First operand 3604 states and 5134 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:22:40,860 INFO L93 Difference]: Finished difference Result 11542 states and 16739 transitions. [2021-11-02 23:22:40,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:22:40,861 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:22:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:22:40,873 INFO L225 Difference]: With dead ends: 11542 [2021-11-02 23:22:40,873 INFO L226 Difference]: Without dead ends: 10860 [2021-11-02 23:22:40,876 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:22:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10860 states. [2021-11-02 23:22:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10860 to 3612. [2021-11-02 23:22:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 3583 states have (on average 1.435110242813285) internal successors, (5142), 3611 states have internal predecessors, (5142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5142 transitions. [2021-11-02 23:22:42,010 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5142 transitions. Word has length 114 [2021-11-02 23:22:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:22:42,010 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 5142 transitions. [2021-11-02 23:22:42,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5142 transitions. [2021-11-02 23:22:42,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:22:42,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:22:42,014 INFO L513 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] [2021-11-02 23:22:42,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-02 23:22:42,014 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:22:42,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:22:42,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2040385468, now seen corresponding path program 1 times [2021-11-02 23:22:42,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:22:42,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304636274] [2021-11-02 23:22:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:22:42,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:22:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:22:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:22:42,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:22:42,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304636274] [2021-11-02 23:22:42,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304636274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:22:42,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:22:42,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:22:42,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542697521] [2021-11-02 23:22:42,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:22:42,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:22:42,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:22:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:22:42,168 INFO L87 Difference]: Start difference. First operand 3612 states and 5142 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:22:47,735 INFO L93 Difference]: Finished difference Result 7548 states and 10901 transitions. [2021-11-02 23:22:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:22:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:22:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:22:47,743 INFO L225 Difference]: With dead ends: 7548 [2021-11-02 23:22:47,743 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:22:47,745 INFO L786 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 [2021-11-02 23:22:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:22:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3612. [2021-11-02 23:22:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 3583 states have (on average 1.4345520513536143) internal successors, (5140), 3611 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5140 transitions. [2021-11-02 23:22:48,808 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5140 transitions. Word has length 114 [2021-11-02 23:22:48,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:22:48,808 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 5140 transitions. [2021-11-02 23:22:48,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:22:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5140 transitions. [2021-11-02 23:22:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:22:48,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:22:48,812 INFO L513 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] [2021-11-02 23:22:48,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-02 23:22:48,812 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:22:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:22:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1422313079, now seen corresponding path program 1 times [2021-11-02 23:22:48,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:22:48,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948333828] [2021-11-02 23:22:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:22:48,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:22:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:22:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:22:49,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:22:49,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948333828] [2021-11-02 23:22:49,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948333828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:22:49,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:22:49,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:22:49,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389255859] [2021-11-02 23:22:49,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:22:49,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:22:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:22:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:22:49,043 INFO L87 Difference]: Start difference. First operand 3612 states and 5140 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:00,564 INFO L93 Difference]: Finished difference Result 11524 states and 16711 transitions. [2021-11-02 23:23:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:23:00,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:00,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:00,578 INFO L225 Difference]: With dead ends: 11524 [2021-11-02 23:23:00,578 INFO L226 Difference]: Without dead ends: 10851 [2021-11-02 23:23:00,582 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:23:00,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2021-11-02 23:23:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 3616. [2021-11-02 23:23:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3587 states have (on average 1.4340674658488988) internal successors, (5144), 3615 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5144 transitions. [2021-11-02 23:23:01,796 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5144 transitions. Word has length 114 [2021-11-02 23:23:01,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:01,796 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 5144 transitions. [2021-11-02 23:23:01,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:01,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5144 transitions. [2021-11-02 23:23:01,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:01,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:01,800 INFO L513 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] [2021-11-02 23:23:01,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-02 23:23:01,800 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:01,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash -731468516, now seen corresponding path program 1 times [2021-11-02 23:23:01,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:01,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611921475] [2021-11-02 23:23:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:01,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:02,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:02,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611921475] [2021-11-02 23:23:02,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611921475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:02,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:02,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:23:02,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075335211] [2021-11-02 23:23:02,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:23:02,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:23:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:23:02,017 INFO L87 Difference]: Start difference. First operand 3616 states and 5144 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:13,445 INFO L93 Difference]: Finished difference Result 11546 states and 16736 transitions. [2021-11-02 23:23:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:23:13,445 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:13,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:13,456 INFO L225 Difference]: With dead ends: 11546 [2021-11-02 23:23:13,457 INFO L226 Difference]: Without dead ends: 10862 [2021-11-02 23:23:13,459 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:23:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2021-11-02 23:23:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 3624. [2021-11-02 23:23:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4331015299026426) internal successors, (5152), 3623 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5152 transitions. [2021-11-02 23:23:14,555 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5152 transitions. Word has length 114 [2021-11-02 23:23:14,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:14,556 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5152 transitions. [2021-11-02 23:23:14,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5152 transitions. [2021-11-02 23:23:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:14,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:14,559 INFO L513 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] [2021-11-02 23:23:14,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-02 23:23:14,559 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:14,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash -95181654, now seen corresponding path program 1 times [2021-11-02 23:23:14,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:14,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039982036] [2021-11-02 23:23:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:14,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:14,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:14,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039982036] [2021-11-02 23:23:14,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039982036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:14,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:14,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:23:14,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138897956] [2021-11-02 23:23:14,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:23:14,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:23:14,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:23:14,713 INFO L87 Difference]: Start difference. First operand 3624 states and 5152 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:20,534 INFO L93 Difference]: Finished difference Result 7550 states and 10898 transitions. [2021-11-02 23:23:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:23:20,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:20,542 INFO L225 Difference]: With dead ends: 7550 [2021-11-02 23:23:20,542 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:23:20,544 INFO L786 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 [2021-11-02 23:23:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:23:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3624. [2021-11-02 23:23:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4325452016689848) internal successors, (5150), 3623 states have internal predecessors, (5150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5150 transitions. [2021-11-02 23:23:21,634 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5150 transitions. Word has length 114 [2021-11-02 23:23:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:21,634 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5150 transitions. [2021-11-02 23:23:21,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5150 transitions. [2021-11-02 23:23:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:21,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:21,637 INFO L513 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] [2021-11-02 23:23:21,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-02 23:23:21,638 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:21,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:21,638 INFO L85 PathProgramCache]: Analyzing trace with hash -690725463, now seen corresponding path program 1 times [2021-11-02 23:23:21,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:21,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288368331] [2021-11-02 23:23:21,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:21,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:21,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:21,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288368331] [2021-11-02 23:23:21,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288368331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:21,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:21,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:23:21,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954765592] [2021-11-02 23:23:21,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:23:21,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:21,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:23:21,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:23:21,915 INFO L87 Difference]: Start difference. First operand 3624 states and 5150 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:32,134 INFO L93 Difference]: Finished difference Result 8320 states and 11968 transitions. [2021-11-02 23:23:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:23:32,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:32,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:32,147 INFO L225 Difference]: With dead ends: 8320 [2021-11-02 23:23:32,147 INFO L226 Difference]: Without dead ends: 7610 [2021-11-02 23:23:32,151 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:23:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2021-11-02 23:23:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 3624. [2021-11-02 23:23:33,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4319888734353268) internal successors, (5148), 3623 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5148 transitions. [2021-11-02 23:23:33,376 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5148 transitions. Word has length 114 [2021-11-02 23:23:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:33,376 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5148 transitions. [2021-11-02 23:23:33,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5148 transitions. [2021-11-02 23:23:33,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:33,379 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:33,379 INFO L513 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] [2021-11-02 23:23:33,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-02 23:23:33,380 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:33,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1099570691, now seen corresponding path program 1 times [2021-11-02 23:23:33,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:33,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238414750] [2021-11-02 23:23:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:33,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:33,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:33,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238414750] [2021-11-02 23:23:33,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238414750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:33,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:33,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:23:33,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264641439] [2021-11-02 23:23:33,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:23:33,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:23:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:23:33,507 INFO L87 Difference]: Start difference. First operand 3624 states and 5148 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:38,736 INFO L93 Difference]: Finished difference Result 7564 states and 10913 transitions. [2021-11-02 23:23:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:23:38,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:38,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:38,745 INFO L225 Difference]: With dead ends: 7564 [2021-11-02 23:23:38,745 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:23:38,748 INFO L786 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 [2021-11-02 23:23:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:23:39,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3624. [2021-11-02 23:23:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4308762169680111) internal successors, (5144), 3623 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5144 transitions. [2021-11-02 23:23:39,889 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5144 transitions. Word has length 114 [2021-11-02 23:23:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:39,889 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5144 transitions. [2021-11-02 23:23:39,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5144 transitions. [2021-11-02 23:23:39,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:39,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:39,893 INFO L513 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] [2021-11-02 23:23:39,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-02 23:23:39,893 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:39,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1555279999, now seen corresponding path program 1 times [2021-11-02 23:23:39,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:39,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005685137] [2021-11-02 23:23:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:39,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:40,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:40,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005685137] [2021-11-02 23:23:40,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005685137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:40,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:40,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:23:40,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998258240] [2021-11-02 23:23:40,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:23:40,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:23:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:23:40,034 INFO L87 Difference]: Start difference. First operand 3624 states and 5144 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:45,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:23:45,290 INFO L93 Difference]: Finished difference Result 7566 states and 10912 transitions. [2021-11-02 23:23:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:23:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:23:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:23:45,297 INFO L225 Difference]: With dead ends: 7566 [2021-11-02 23:23:45,297 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:23:45,300 INFO L786 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 [2021-11-02 23:23:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:23:46,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3624. [2021-11-02 23:23:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4297635605006953) internal successors, (5140), 3623 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5140 transitions. [2021-11-02 23:23:46,366 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5140 transitions. Word has length 114 [2021-11-02 23:23:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:23:46,366 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5140 transitions. [2021-11-02 23:23:46,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:23:46,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5140 transitions. [2021-11-02 23:23:46,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:23:46,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:23:46,369 INFO L513 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] [2021-11-02 23:23:46,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-02 23:23:46,370 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:23:46,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:23:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2103617902, now seen corresponding path program 1 times [2021-11-02 23:23:46,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:23:46,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107768309] [2021-11-02 23:23:46,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:23:46,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:23:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:23:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:23:46,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:23:46,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107768309] [2021-11-02 23:23:46,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107768309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:23:46,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:23:46,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:23:46,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101581621] [2021-11-02 23:23:46,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:23:46,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:23:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:23:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:23:46,542 INFO L87 Difference]: Start difference. First operand 3624 states and 5140 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:00,303 INFO L93 Difference]: Finished difference Result 11570 states and 16758 transitions. [2021-11-02 23:24:00,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:24:00,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:00,320 INFO L225 Difference]: With dead ends: 11570 [2021-11-02 23:24:00,321 INFO L226 Difference]: Without dead ends: 10874 [2021-11-02 23:24:00,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:24:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2021-11-02 23:24:02,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 3640. [2021-11-02 23:24:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3611 states have (on average 1.427859318748269) internal successors, (5156), 3639 states have internal predecessors, (5156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5156 transitions. [2021-11-02 23:24:02,254 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5156 transitions. Word has length 114 [2021-11-02 23:24:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:02,254 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5156 transitions. [2021-11-02 23:24:02,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5156 transitions. [2021-11-02 23:24:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:02,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:02,259 INFO L513 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] [2021-11-02 23:24:02,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-02 23:24:02,259 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1354396539, now seen corresponding path program 1 times [2021-11-02 23:24:02,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:02,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675497968] [2021-11-02 23:24:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:02,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:02,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:02,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675497968] [2021-11-02 23:24:02,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675497968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:02,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:02,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:24:02,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099619972] [2021-11-02 23:24:02,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:24:02,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:24:02,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:24:02,665 INFO L87 Difference]: Start difference. First operand 3640 states and 5156 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:14,466 INFO L93 Difference]: Finished difference Result 11542 states and 16716 transitions. [2021-11-02 23:24:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:24:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:14,477 INFO L225 Difference]: With dead ends: 11542 [2021-11-02 23:24:14,477 INFO L226 Difference]: Without dead ends: 10860 [2021-11-02 23:24:14,479 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:24:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10860 states. [2021-11-02 23:24:15,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10860 to 3648. [2021-11-02 23:24:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3619 states have (on average 1.426913512019895) internal successors, (5164), 3647 states have internal predecessors, (5164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:15,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5164 transitions. [2021-11-02 23:24:15,586 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5164 transitions. Word has length 114 [2021-11-02 23:24:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:15,587 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5164 transitions. [2021-11-02 23:24:15,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5164 transitions. [2021-11-02 23:24:15,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:15,589 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:15,590 INFO L513 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] [2021-11-02 23:24:15,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-02 23:24:15,590 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash -369561292, now seen corresponding path program 1 times [2021-11-02 23:24:15,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:15,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394215232] [2021-11-02 23:24:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:15,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:15,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:15,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394215232] [2021-11-02 23:24:15,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394215232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:15,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:15,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:24:15,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736625443] [2021-11-02 23:24:15,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:24:15,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:24:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:24:15,735 INFO L87 Difference]: Start difference. First operand 3648 states and 5164 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:21,438 INFO L93 Difference]: Finished difference Result 7548 states and 10878 transitions. [2021-11-02 23:24:21,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:24:21,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:21,445 INFO L225 Difference]: With dead ends: 7548 [2021-11-02 23:24:21,445 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:24:21,447 INFO L786 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 [2021-11-02 23:24:21,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:24:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3648. [2021-11-02 23:24:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3619 states have (on average 1.4263608731693838) internal successors, (5162), 3647 states have internal predecessors, (5162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5162 transitions. [2021-11-02 23:24:22,549 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5162 transitions. Word has length 114 [2021-11-02 23:24:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:22,549 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5162 transitions. [2021-11-02 23:24:22,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5162 transitions. [2021-11-02 23:24:22,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:22,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:22,552 INFO L513 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] [2021-11-02 23:24:22,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-02 23:24:22,552 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:22,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2138520516, now seen corresponding path program 1 times [2021-11-02 23:24:22,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:22,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063643861] [2021-11-02 23:24:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:22,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:22,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:22,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063643861] [2021-11-02 23:24:22,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063643861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:22,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:22,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:24:22,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329928054] [2021-11-02 23:24:22,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:24:22,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:24:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:24:22,683 INFO L87 Difference]: Start difference. First operand 3648 states and 5162 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:28,971 INFO L93 Difference]: Finished difference Result 7192 states and 10383 transitions. [2021-11-02 23:24:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:24:28,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:28,977 INFO L225 Difference]: With dead ends: 7192 [2021-11-02 23:24:28,977 INFO L226 Difference]: Without dead ends: 6426 [2021-11-02 23:24:28,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:24:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-11-02 23:24:30,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 3648. [2021-11-02 23:24:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3619 states have (on average 1.4252555954683614) internal successors, (5158), 3647 states have internal predecessors, (5158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5158 transitions. [2021-11-02 23:24:30,185 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5158 transitions. Word has length 114 [2021-11-02 23:24:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:30,185 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5158 transitions. [2021-11-02 23:24:30,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5158 transitions. [2021-11-02 23:24:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:30,192 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:30,192 INFO L513 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] [2021-11-02 23:24:30,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-02 23:24:30,193 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:30,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:30,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1747601552, now seen corresponding path program 1 times [2021-11-02 23:24:30,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:30,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100968275] [2021-11-02 23:24:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:30,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:30,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:30,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100968275] [2021-11-02 23:24:30,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100968275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:30,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:30,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:24:30,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71594917] [2021-11-02 23:24:30,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:24:30,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:30,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:24:30,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:24:30,530 INFO L87 Difference]: Start difference. First operand 3648 states and 5158 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:36,334 INFO L93 Difference]: Finished difference Result 7576 states and 10909 transitions. [2021-11-02 23:24:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:24:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:36,341 INFO L225 Difference]: With dead ends: 7576 [2021-11-02 23:24:36,341 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:24:36,343 INFO L786 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 [2021-11-02 23:24:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:24:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3648. [2021-11-02 23:24:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3619 states have (on average 1.4241503177673391) internal successors, (5154), 3647 states have internal predecessors, (5154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5154 transitions. [2021-11-02 23:24:37,428 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5154 transitions. Word has length 114 [2021-11-02 23:24:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:37,428 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5154 transitions. [2021-11-02 23:24:37,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5154 transitions. [2021-11-02 23:24:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:37,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:37,431 INFO L513 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] [2021-11-02 23:24:37,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-02 23:24:37,431 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash -187578806, now seen corresponding path program 1 times [2021-11-02 23:24:37,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:37,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496439039] [2021-11-02 23:24:37,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:37,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:37,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:37,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496439039] [2021-11-02 23:24:37,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496439039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:37,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:37,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:24:37,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136756024] [2021-11-02 23:24:37,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:24:37,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:37,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:24:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:24:37,611 INFO L87 Difference]: Start difference. First operand 3648 states and 5154 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:54,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:54,252 INFO L93 Difference]: Finished difference Result 16082 states and 23293 transitions. [2021-11-02 23:24:54,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:24:54,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:24:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:54,270 INFO L225 Difference]: With dead ends: 16082 [2021-11-02 23:24:54,270 INFO L226 Difference]: Without dead ends: 15184 [2021-11-02 23:24:54,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:24:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15184 states. [2021-11-02 23:24:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15184 to 3664. [2021-11-02 23:24:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3635 states have (on average 1.422283356258597) internal successors, (5170), 3663 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5170 transitions. [2021-11-02 23:24:55,637 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5170 transitions. Word has length 114 [2021-11-02 23:24:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:55,638 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 5170 transitions. [2021-11-02 23:24:55,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:24:55,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5170 transitions. [2021-11-02 23:24:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:24:55,642 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:24:55,642 INFO L513 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] [2021-11-02 23:24:55,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-02 23:24:55,642 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:24:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1485736079, now seen corresponding path program 1 times [2021-11-02 23:24:55,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:55,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855620775] [2021-11-02 23:24:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:55,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:55,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:55,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855620775] [2021-11-02 23:24:55,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855620775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:55,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:55,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:24:55,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419617896] [2021-11-02 23:24:55,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:24:55,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:24:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:24:55,801 INFO L87 Difference]: Start difference. First operand 3664 states and 5170 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:01,967 INFO L93 Difference]: Finished difference Result 7582 states and 10908 transitions. [2021-11-02 23:25:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:25:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:25:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:01,975 INFO L225 Difference]: With dead ends: 7582 [2021-11-02 23:25:01,975 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:25:01,977 INFO L786 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 [2021-11-02 23:25:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:25:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3664. [2021-11-02 23:25:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3635 states have (on average 1.4211829436038514) internal successors, (5166), 3663 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5166 transitions. [2021-11-02 23:25:03,121 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5166 transitions. Word has length 114 [2021-11-02 23:25:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:03,122 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 5166 transitions. [2021-11-02 23:25:03,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5166 transitions. [2021-11-02 23:25:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:25:03,140 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:03,141 INFO L513 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] [2021-11-02 23:25:03,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-02 23:25:03,141 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2122503553, now seen corresponding path program 1 times [2021-11-02 23:25:03,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:03,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120772843] [2021-11-02 23:25:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:03,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:03,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:03,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120772843] [2021-11-02 23:25:03,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120772843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:03,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:03,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:25:03,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523692092] [2021-11-02 23:25:03,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:25:03,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:03,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:25:03,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:25:03,370 INFO L87 Difference]: Start difference. First operand 3664 states and 5166 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:15,586 INFO L93 Difference]: Finished difference Result 11610 states and 16786 transitions. [2021-11-02 23:25:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:25:15,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:25:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:15,597 INFO L225 Difference]: With dead ends: 11610 [2021-11-02 23:25:15,597 INFO L226 Difference]: Without dead ends: 10902 [2021-11-02 23:25:15,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:25:15,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10902 states. [2021-11-02 23:25:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10902 to 3680. [2021-11-02 23:25:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3651 states have (on average 1.4193371678992057) internal successors, (5182), 3679 states have internal predecessors, (5182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5182 transitions. [2021-11-02 23:25:16,744 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5182 transitions. Word has length 114 [2021-11-02 23:25:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:16,745 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 5182 transitions. [2021-11-02 23:25:16,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5182 transitions. [2021-11-02 23:25:16,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:25:16,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:16,748 INFO L513 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] [2021-11-02 23:25:16,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-02 23:25:16,748 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:16,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:16,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1804361568, now seen corresponding path program 1 times [2021-11-02 23:25:16,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:16,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980557085] [2021-11-02 23:25:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:16,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:16,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:16,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980557085] [2021-11-02 23:25:16,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980557085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:16,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:16,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:25:16,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805908402] [2021-11-02 23:25:16,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:25:16,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:25:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:25:16,862 INFO L87 Difference]: Start difference. First operand 3680 states and 5182 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:22,499 INFO L93 Difference]: Finished difference Result 7632 states and 10969 transitions. [2021-11-02 23:25:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:25:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:25:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:22,507 INFO L225 Difference]: With dead ends: 7632 [2021-11-02 23:25:22,507 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:25:22,508 INFO L786 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 [2021-11-02 23:25:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:25:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3680. [2021-11-02 23:25:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3651 states have (on average 1.4171459874007122) internal successors, (5174), 3679 states have internal predecessors, (5174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5174 transitions. [2021-11-02 23:25:23,731 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5174 transitions. Word has length 114 [2021-11-02 23:25:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:23,731 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 5174 transitions. [2021-11-02 23:25:23,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5174 transitions. [2021-11-02 23:25:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:25:23,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:23,734 INFO L513 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] [2021-11-02 23:25:23,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-02 23:25:23,734 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:23,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:23,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2081760500, now seen corresponding path program 1 times [2021-11-02 23:25:23,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:23,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732499384] [2021-11-02 23:25:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:23,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:23,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:23,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732499384] [2021-11-02 23:25:23,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732499384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:23,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:23,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:25:23,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870429612] [2021-11-02 23:25:23,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:25:23,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:25:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:25:23,946 INFO L87 Difference]: Start difference. First operand 3680 states and 5174 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:33,839 INFO L93 Difference]: Finished difference Result 8488 states and 12162 transitions. [2021-11-02 23:25:33,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:25:33,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-02 23:25:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:33,848 INFO L225 Difference]: With dead ends: 8488 [2021-11-02 23:25:33,848 INFO L226 Difference]: Without dead ends: 7722 [2021-11-02 23:25:33,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:25:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7722 states. [2021-11-02 23:25:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7722 to 3680. [2021-11-02 23:25:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3651 states have (on average 1.4160503971514653) internal successors, (5170), 3679 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5170 transitions. [2021-11-02 23:25:35,136 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5170 transitions. Word has length 114 [2021-11-02 23:25:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:35,136 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 5170 transitions. [2021-11-02 23:25:35,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5170 transitions. [2021-11-02 23:25:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:25:35,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:35,140 INFO L513 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] [2021-11-02 23:25:35,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-02 23:25:35,140 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:35,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:35,140 INFO L85 PathProgramCache]: Analyzing trace with hash 352654659, now seen corresponding path program 1 times [2021-11-02 23:25:35,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:35,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403772318] [2021-11-02 23:25:35,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:35,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:35,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:35,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403772318] [2021-11-02 23:25:35,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403772318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:35,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:35,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:25:35,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532916518] [2021-11-02 23:25:35,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:25:35,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:35,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:25:35,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:25:35,261 INFO L87 Difference]: Start difference. First operand 3680 states and 5170 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:40,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:40,913 INFO L93 Difference]: Finished difference Result 7572 states and 10873 transitions. [2021-11-02 23:25:40,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:25:40,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:25:40,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:40,920 INFO L225 Difference]: With dead ends: 7572 [2021-11-02 23:25:40,920 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:25:40,922 INFO L786 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 [2021-11-02 23:25:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:25:42,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3672. [2021-11-02 23:25:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3643 states have (on average 1.4164150425473512) internal successors, (5160), 3671 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5160 transitions. [2021-11-02 23:25:42,139 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5160 transitions. Word has length 115 [2021-11-02 23:25:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:42,139 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 5160 transitions. [2021-11-02 23:25:42,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5160 transitions. [2021-11-02 23:25:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:25:42,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:42,142 INFO L513 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] [2021-11-02 23:25:42,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-02 23:25:42,142 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1953979380, now seen corresponding path program 1 times [2021-11-02 23:25:42,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:42,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013341457] [2021-11-02 23:25:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:42,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:42,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:42,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013341457] [2021-11-02 23:25:42,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013341457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:42,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:42,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:25:42,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004468049] [2021-11-02 23:25:42,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:25:42,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:42,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:25:42,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:25:42,242 INFO L87 Difference]: Start difference. First operand 3672 states and 5160 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:47,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:47,889 INFO L93 Difference]: Finished difference Result 7592 states and 10899 transitions. [2021-11-02 23:25:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:25:47,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:25:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:47,897 INFO L225 Difference]: With dead ends: 7592 [2021-11-02 23:25:47,897 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:25:47,899 INFO L786 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 [2021-11-02 23:25:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:25:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3656. [2021-11-02 23:25:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3627 states have (on average 1.417149159084643) internal successors, (5140), 3655 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5140 transitions. [2021-11-02 23:25:49,128 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5140 transitions. Word has length 115 [2021-11-02 23:25:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:49,129 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 5140 transitions. [2021-11-02 23:25:49,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5140 transitions. [2021-11-02 23:25:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:25:49,131 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:49,131 INFO L513 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] [2021-11-02 23:25:49,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-02 23:25:49,132 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1189569746, now seen corresponding path program 1 times [2021-11-02 23:25:49,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:49,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435177204] [2021-11-02 23:25:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:49,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:49,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:49,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435177204] [2021-11-02 23:25:49,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435177204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:49,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:49,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:25:49,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954204558] [2021-11-02 23:25:49,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:25:49,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:25:49,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:25:49,235 INFO L87 Difference]: Start difference. First operand 3656 states and 5140 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:55,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:55,224 INFO L93 Difference]: Finished difference Result 7566 states and 10860 transitions. [2021-11-02 23:25:55,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:25:55,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:25:55,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:55,231 INFO L225 Difference]: With dead ends: 7566 [2021-11-02 23:25:55,231 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:25:55,233 INFO L786 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 [2021-11-02 23:25:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:25:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3648. [2021-11-02 23:25:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3619 states have (on average 1.4175186515612048) internal successors, (5130), 3647 states have internal predecessors, (5130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5130 transitions. [2021-11-02 23:25:56,487 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5130 transitions. Word has length 115 [2021-11-02 23:25:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:56,488 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5130 transitions. [2021-11-02 23:25:56,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:25:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5130 transitions. [2021-11-02 23:25:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:25:56,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:56,490 INFO L513 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] [2021-11-02 23:25:56,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-02 23:25:56,491 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:25:56,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1071105860, now seen corresponding path program 1 times [2021-11-02 23:25:56,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:56,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010006826] [2021-11-02 23:25:56,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:56,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:56,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:56,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010006826] [2021-11-02 23:25:56,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010006826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:56,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:56,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:25:56,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59599443] [2021-11-02 23:25:56,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:25:56,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:56,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:25:56,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:25:56,608 INFO L87 Difference]: Start difference. First operand 3648 states and 5130 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:03,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:03,186 INFO L93 Difference]: Finished difference Result 7568 states and 10859 transitions. [2021-11-02 23:26:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:03,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:03,196 INFO L225 Difference]: With dead ends: 7568 [2021-11-02 23:26:03,196 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:03,200 INFO L786 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 [2021-11-02 23:26:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3640. [2021-11-02 23:26:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3611 states have (on average 1.4178897812240376) internal successors, (5120), 3639 states have internal predecessors, (5120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5120 transitions. [2021-11-02 23:26:05,179 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5120 transitions. Word has length 115 [2021-11-02 23:26:05,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:05,179 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5120 transitions. [2021-11-02 23:26:05,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:05,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5120 transitions. [2021-11-02 23:26:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:05,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:05,184 INFO L513 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] [2021-11-02 23:26:05,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-02 23:26:05,184 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2072032164, now seen corresponding path program 1 times [2021-11-02 23:26:05,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:05,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5160651] [2021-11-02 23:26:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:05,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:05,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:05,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5160651] [2021-11-02 23:26:05,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5160651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:05,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:05,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:05,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390354242] [2021-11-02 23:26:05,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:05,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:05,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:05,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:05,391 INFO L87 Difference]: Start difference. First operand 3640 states and 5120 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:13,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:13,190 INFO L93 Difference]: Finished difference Result 7558 states and 10845 transitions. [2021-11-02 23:26:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:13,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:13,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:13,214 INFO L225 Difference]: With dead ends: 7558 [2021-11-02 23:26:13,224 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:13,228 INFO L786 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 [2021-11-02 23:26:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3636. [2021-11-02 23:26:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3607 states have (on average 1.4180759634044913) internal successors, (5115), 3635 states have internal predecessors, (5115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5115 transitions. [2021-11-02 23:26:15,191 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5115 transitions. Word has length 115 [2021-11-02 23:26:15,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:15,195 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 5115 transitions. [2021-11-02 23:26:15,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5115 transitions. [2021-11-02 23:26:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:15,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:15,199 INFO L513 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] [2021-11-02 23:26:15,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-02 23:26:15,207 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:15,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1296795181, now seen corresponding path program 1 times [2021-11-02 23:26:15,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:15,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843166690] [2021-11-02 23:26:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:15,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:15,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:15,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:15,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843166690] [2021-11-02 23:26:15,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843166690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:15,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:15,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:15,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476935219] [2021-11-02 23:26:15,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:15,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:15,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:15,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:15,450 INFO L87 Difference]: Start difference. First operand 3636 states and 5115 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:21,847 INFO L93 Difference]: Finished difference Result 7566 states and 10855 transitions. [2021-11-02 23:26:21,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:21,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:21,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:21,854 INFO L225 Difference]: With dead ends: 7566 [2021-11-02 23:26:21,854 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:21,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:26:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3628. [2021-11-02 23:26:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3599 states have (on average 1.4184495693248125) internal successors, (5105), 3627 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5105 transitions. [2021-11-02 23:26:23,100 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5105 transitions. Word has length 115 [2021-11-02 23:26:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:23,101 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5105 transitions. [2021-11-02 23:26:23,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:23,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5105 transitions. [2021-11-02 23:26:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:23,103 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:23,104 INFO L513 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] [2021-11-02 23:26:23,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-02 23:26:23,104 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:23,105 INFO L85 PathProgramCache]: Analyzing trace with hash 662023771, now seen corresponding path program 1 times [2021-11-02 23:26:23,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:23,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125606455] [2021-11-02 23:26:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:23,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:23,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:23,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125606455] [2021-11-02 23:26:23,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125606455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:23,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:23,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:23,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848532595] [2021-11-02 23:26:23,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:23,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:23,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:23,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:23,218 INFO L87 Difference]: Start difference. First operand 3628 states and 5105 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:29,187 INFO L93 Difference]: Finished difference Result 7556 states and 10840 transitions. [2021-11-02 23:26:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:29,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:29,194 INFO L225 Difference]: With dead ends: 7556 [2021-11-02 23:26:29,194 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:29,196 INFO L786 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 [2021-11-02 23:26:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3628. [2021-11-02 23:26:30,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3599 states have (on average 1.4181717143651014) internal successors, (5104), 3627 states have internal predecessors, (5104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5104 transitions. [2021-11-02 23:26:30,407 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5104 transitions. Word has length 115 [2021-11-02 23:26:30,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:30,407 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5104 transitions. [2021-11-02 23:26:30,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:30,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5104 transitions. [2021-11-02 23:26:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:30,410 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:30,410 INFO L513 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] [2021-11-02 23:26:30,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-02 23:26:30,410 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:30,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1161160130, now seen corresponding path program 1 times [2021-11-02 23:26:30,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:30,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679049004] [2021-11-02 23:26:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:30,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:30,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:30,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679049004] [2021-11-02 23:26:30,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679049004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:30,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:30,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:30,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178799000] [2021-11-02 23:26:30,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:30,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:30,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:30,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:30,525 INFO L87 Difference]: Start difference. First operand 3628 states and 5104 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:36,826 INFO L93 Difference]: Finished difference Result 7557 states and 10840 transitions. [2021-11-02 23:26:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:36,832 INFO L225 Difference]: With dead ends: 7557 [2021-11-02 23:26:36,833 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:36,834 INFO L786 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 [2021-11-02 23:26:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3624. [2021-11-02 23:26:38,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4183588317107094) internal successors, (5099), 3623 states have internal predecessors, (5099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:38,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5099 transitions. [2021-11-02 23:26:38,079 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5099 transitions. Word has length 115 [2021-11-02 23:26:38,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:38,079 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5099 transitions. [2021-11-02 23:26:38,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:38,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5099 transitions. [2021-11-02 23:26:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:38,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:38,082 INFO L513 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] [2021-11-02 23:26:38,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-02 23:26:38,083 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash -304266844, now seen corresponding path program 1 times [2021-11-02 23:26:38,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:38,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857447279] [2021-11-02 23:26:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:38,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:38,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:38,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857447279] [2021-11-02 23:26:38,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857447279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:38,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:38,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:38,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762181253] [2021-11-02 23:26:38,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:38,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:38,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:38,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:38,203 INFO L87 Difference]: Start difference. First operand 3624 states and 5099 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:44,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:44,212 INFO L93 Difference]: Finished difference Result 7568 states and 10852 transitions. [2021-11-02 23:26:44,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:44,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:44,220 INFO L225 Difference]: With dead ends: 7568 [2021-11-02 23:26:44,220 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:44,222 INFO L786 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 [2021-11-02 23:26:44,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3616. [2021-11-02 23:26:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3587 states have (on average 1.4187343183718986) internal successors, (5089), 3615 states have internal predecessors, (5089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5089 transitions. [2021-11-02 23:26:45,486 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5089 transitions. Word has length 115 [2021-11-02 23:26:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:45,486 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 5089 transitions. [2021-11-02 23:26:45,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5089 transitions. [2021-11-02 23:26:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:45,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:45,489 INFO L513 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] [2021-11-02 23:26:45,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-02 23:26:45,490 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash 119076324, now seen corresponding path program 1 times [2021-11-02 23:26:45,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:45,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270644115] [2021-11-02 23:26:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:45,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:45,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:45,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270644115] [2021-11-02 23:26:45,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270644115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:45,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:45,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:45,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343122762] [2021-11-02 23:26:45,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:45,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:45,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:45,607 INFO L87 Difference]: Start difference. First operand 3616 states and 5089 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:50,628 INFO L93 Difference]: Finished difference Result 5780 states and 8239 transitions. [2021-11-02 23:26:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:50,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:50,632 INFO L225 Difference]: With dead ends: 5780 [2021-11-02 23:26:50,633 INFO L226 Difference]: Without dead ends: 5070 [2021-11-02 23:26:50,633 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:26:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2021-11-02 23:26:51,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 3616. [2021-11-02 23:26:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3587 states have (on average 1.4181767493727349) internal successors, (5087), 3615 states have internal predecessors, (5087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5087 transitions. [2021-11-02 23:26:51,863 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5087 transitions. Word has length 115 [2021-11-02 23:26:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:51,863 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 5087 transitions. [2021-11-02 23:26:51,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5087 transitions. [2021-11-02 23:26:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:51,866 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:51,866 INFO L513 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] [2021-11-02 23:26:51,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-02 23:26:51,866 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1684066413, now seen corresponding path program 1 times [2021-11-02 23:26:51,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:51,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571120965] [2021-11-02 23:26:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:51,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:51,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:51,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571120965] [2021-11-02 23:26:51,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571120965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:51,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:51,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:51,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355461637] [2021-11-02 23:26:51,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:51,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:51,971 INFO L87 Difference]: Start difference. First operand 3616 states and 5087 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:58,087 INFO L93 Difference]: Finished difference Result 7580 states and 10866 transitions. [2021-11-02 23:26:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:26:58,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:26:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:58,093 INFO L225 Difference]: With dead ends: 7580 [2021-11-02 23:26:58,093 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:26:58,095 INFO L786 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 [2021-11-02 23:26:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:26:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3600. [2021-11-02 23:26:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3571 states have (on average 1.418930271632596) internal successors, (5067), 3599 states have internal predecessors, (5067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5067 transitions. [2021-11-02 23:26:59,352 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5067 transitions. Word has length 115 [2021-11-02 23:26:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:59,352 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 5067 transitions. [2021-11-02 23:26:59,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:26:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5067 transitions. [2021-11-02 23:26:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:26:59,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:26:59,355 INFO L513 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] [2021-11-02 23:26:59,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-02 23:26:59,355 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:26:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:59,356 INFO L85 PathProgramCache]: Analyzing trace with hash 533539957, now seen corresponding path program 1 times [2021-11-02 23:26:59,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:59,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903963494] [2021-11-02 23:26:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:59,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:59,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:59,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903963494] [2021-11-02 23:26:59,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903963494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:59,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:59,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:26:59,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951498311] [2021-11-02 23:26:59,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:26:59,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:59,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:26:59,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:26:59,457 INFO L87 Difference]: Start difference. First operand 3600 states and 5067 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:05,605 INFO L93 Difference]: Finished difference Result 7566 states and 10843 transitions. [2021-11-02 23:27:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:27:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:27:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:05,612 INFO L225 Difference]: With dead ends: 7566 [2021-11-02 23:27:05,612 INFO L226 Difference]: Without dead ends: 6884 [2021-11-02 23:27:05,613 INFO L786 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 [2021-11-02 23:27:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2021-11-02 23:27:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 3592. [2021-11-02 23:27:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3563 states have (on average 1.4193095705865844) internal successors, (5057), 3591 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5057 transitions. [2021-11-02 23:27:06,904 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5057 transitions. Word has length 115 [2021-11-02 23:27:06,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:06,904 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5057 transitions. [2021-11-02 23:27:06,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5057 transitions. [2021-11-02 23:27:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:27:06,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:06,907 INFO L513 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] [2021-11-02 23:27:06,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-02 23:27:06,907 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2055298201, now seen corresponding path program 1 times [2021-11-02 23:27:06,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:06,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180850466] [2021-11-02 23:27:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:06,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:07,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:07,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180850466] [2021-11-02 23:27:07,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180850466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:07,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:07,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:27:07,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683369915] [2021-11-02 23:27:07,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:27:07,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:07,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:27:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:27:07,017 INFO L87 Difference]: Start difference. First operand 3592 states and 5057 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:13,175 INFO L93 Difference]: Finished difference Result 7926 states and 11365 transitions. [2021-11-02 23:27:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:27:13,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:27:13,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:13,182 INFO L225 Difference]: With dead ends: 7926 [2021-11-02 23:27:13,182 INFO L226 Difference]: Without dead ends: 7028 [2021-11-02 23:27:13,183 INFO L786 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 [2021-11-02 23:27:13,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7028 states. [2021-11-02 23:27:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7028 to 3576. [2021-11-02 23:27:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.420073301381449) internal successors, (5037), 3575 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5037 transitions. [2021-11-02 23:27:14,472 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5037 transitions. Word has length 115 [2021-11-02 23:27:14,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:14,473 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5037 transitions. [2021-11-02 23:27:14,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5037 transitions. [2021-11-02 23:27:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:27:14,475 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:14,476 INFO L513 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] [2021-11-02 23:27:14,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-02 23:27:14,476 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:14,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash -476680515, now seen corresponding path program 1 times [2021-11-02 23:27:14,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:14,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947339135] [2021-11-02 23:27:14,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:14,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:14,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:14,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947339135] [2021-11-02 23:27:14,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947339135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:14,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:14,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:27:14,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360639292] [2021-11-02 23:27:14,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:27:14,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:14,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:27:14,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:27:14,601 INFO L87 Difference]: Start difference. First operand 3576 states and 5037 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:20,770 INFO L93 Difference]: Finished difference Result 7576 states and 10856 transitions. [2021-11-02 23:27:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:27:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:27:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:20,777 INFO L225 Difference]: With dead ends: 7576 [2021-11-02 23:27:20,777 INFO L226 Difference]: Without dead ends: 6868 [2021-11-02 23:27:20,778 INFO L786 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 [2021-11-02 23:27:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2021-11-02 23:27:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 3560. [2021-11-02 23:27:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4208439535542339) internal successors, (5017), 3559 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:22,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5017 transitions. [2021-11-02 23:27:22,077 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5017 transitions. Word has length 115 [2021-11-02 23:27:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:22,078 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5017 transitions. [2021-11-02 23:27:22,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5017 transitions. [2021-11-02 23:27:22,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:27:22,080 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:22,080 INFO L513 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] [2021-11-02 23:27:22,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-02 23:27:22,081 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:22,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash -53337347, now seen corresponding path program 1 times [2021-11-02 23:27:22,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:22,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081560754] [2021-11-02 23:27:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:22,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:22,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:22,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081560754] [2021-11-02 23:27:22,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081560754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:22,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:22,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:27:22,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153724850] [2021-11-02 23:27:22,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:27:22,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:27:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:27:22,210 INFO L87 Difference]: Start difference. First operand 3560 states and 5017 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:27,331 INFO L93 Difference]: Finished difference Result 5780 states and 8252 transitions. [2021-11-02 23:27:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:27:27,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-11-02 23:27:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:27,336 INFO L225 Difference]: With dead ends: 5780 [2021-11-02 23:27:27,337 INFO L226 Difference]: Without dead ends: 5014 [2021-11-02 23:27:27,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:27:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2021-11-02 23:27:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 3560. [2021-11-02 23:27:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4197111299915037) internal successors, (5013), 3559 states have internal predecessors, (5013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5013 transitions. [2021-11-02 23:27:28,648 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5013 transitions. Word has length 115 [2021-11-02 23:27:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:28,648 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5013 transitions. [2021-11-02 23:27:28,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5013 transitions. [2021-11-02 23:27:28,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:27:28,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:28,651 INFO L513 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] [2021-11-02 23:27:28,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-02 23:27:28,651 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:28,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:28,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1530428595, now seen corresponding path program 1 times [2021-11-02 23:27:28,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:28,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234800714] [2021-11-02 23:27:28,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:28,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:28,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:28,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234800714] [2021-11-02 23:27:28,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234800714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:28,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:28,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:27:28,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174853724] [2021-11-02 23:27:28,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:27:28,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:27:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:27:28,753 INFO L87 Difference]: Start difference. First operand 3560 states and 5013 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:35,651 INFO L93 Difference]: Finished difference Result 7340 states and 10466 transitions. [2021-11-02 23:27:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:27:35,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:27:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:35,661 INFO L225 Difference]: With dead ends: 7340 [2021-11-02 23:27:35,661 INFO L226 Difference]: Without dead ends: 6660 [2021-11-02 23:27:35,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:27:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6660 states. [2021-11-02 23:27:37,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6660 to 3560. [2021-11-02 23:27:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3531 states have (on average 1.4185783064287738) internal successors, (5009), 3559 states have internal predecessors, (5009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5009 transitions. [2021-11-02 23:27:37,772 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5009 transitions. Word has length 116 [2021-11-02 23:27:37,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:37,772 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 5009 transitions. [2021-11-02 23:27:37,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5009 transitions. [2021-11-02 23:27:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:27:37,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:37,776 INFO L513 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] [2021-11-02 23:27:37,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-02 23:27:37,778 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:37,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash -852341599, now seen corresponding path program 1 times [2021-11-02 23:27:37,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:37,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931589330] [2021-11-02 23:27:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:37,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:37,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:37,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931589330] [2021-11-02 23:27:37,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931589330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:37,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:37,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:27:37,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668826910] [2021-11-02 23:27:37,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:27:37,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:27:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:27:37,987 INFO L87 Difference]: Start difference. First operand 3560 states and 5009 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:56,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:56,769 INFO L93 Difference]: Finished difference Result 12914 states and 18539 transitions. [2021-11-02 23:27:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:27:56,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:27:56,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:56,788 INFO L225 Difference]: With dead ends: 12914 [2021-11-02 23:27:56,788 INFO L226 Difference]: Without dead ends: 12210 [2021-11-02 23:27:56,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:27:56,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12210 states. [2021-11-02 23:27:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12210 to 3576. [2021-11-02 23:27:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.4166901606991824) internal successors, (5025), 3575 states have internal predecessors, (5025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5025 transitions. [2021-11-02 23:27:59,073 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5025 transitions. Word has length 116 [2021-11-02 23:27:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:59,073 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5025 transitions. [2021-11-02 23:27:59,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:27:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5025 transitions. [2021-11-02 23:27:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:27:59,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:27:59,079 INFO L513 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] [2021-11-02 23:27:59,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-11-02 23:27:59,080 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:27:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2039613955, now seen corresponding path program 1 times [2021-11-02 23:27:59,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:59,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066788925] [2021-11-02 23:27:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:59,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:59,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:59,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066788925] [2021-11-02 23:27:59,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066788925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:59,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:59,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:27:59,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735461078] [2021-11-02 23:27:59,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:27:59,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:59,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:27:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:27:59,323 INFO L87 Difference]: Start difference. First operand 3576 states and 5025 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:08,232 INFO L93 Difference]: Finished difference Result 7350 states and 10469 transitions. [2021-11-02 23:28:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:28:08,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:28:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:08,242 INFO L225 Difference]: With dead ends: 7350 [2021-11-02 23:28:08,242 INFO L226 Difference]: Without dead ends: 6676 [2021-11-02 23:28:08,245 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:28:08,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2021-11-02 23:28:10,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 3576. [2021-11-02 23:28:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3547 states have (on average 1.415562447138427) internal successors, (5021), 3575 states have internal predecessors, (5021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 5021 transitions. [2021-11-02 23:28:10,464 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 5021 transitions. Word has length 116 [2021-11-02 23:28:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:10,465 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 5021 transitions. [2021-11-02 23:28:10,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 5021 transitions. [2021-11-02 23:28:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:28:10,469 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:28:10,470 INFO L513 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] [2021-11-02 23:28:10,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-11-02 23:28:10,470 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:28:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 775292020, now seen corresponding path program 1 times [2021-11-02 23:28:10,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:10,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220444237] [2021-11-02 23:28:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:10,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:28:10,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:10,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220444237] [2021-11-02 23:28:10,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220444237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:10,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:10,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:28:10,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261690362] [2021-11-02 23:28:10,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:28:10,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:10,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:28:10,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:28:10,701 INFO L87 Difference]: Start difference. First operand 3576 states and 5021 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:29,378 INFO L93 Difference]: Finished difference Result 10666 states and 15301 transitions. [2021-11-02 23:28:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:28:29,379 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:28:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:29,393 INFO L225 Difference]: With dead ends: 10666 [2021-11-02 23:28:29,393 INFO L226 Difference]: Without dead ends: 9986 [2021-11-02 23:28:29,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:28:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2021-11-02 23:28:31,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 3592. [2021-11-02 23:28:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3563 states have (on average 1.4136963233230424) internal successors, (5037), 3591 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5037 transitions. [2021-11-02 23:28:31,742 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5037 transitions. Word has length 116 [2021-11-02 23:28:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:31,742 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5037 transitions. [2021-11-02 23:28:31,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5037 transitions. [2021-11-02 23:28:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:28:31,746 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:28:31,746 INFO L513 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] [2021-11-02 23:28:31,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-02 23:28:31,747 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:28:31,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -696594836, now seen corresponding path program 1 times [2021-11-02 23:28:31,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:31,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503083016] [2021-11-02 23:28:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:31,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:28:31,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:31,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503083016] [2021-11-02 23:28:31,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503083016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:31,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:31,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:28:31,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468436572] [2021-11-02 23:28:31,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:28:31,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:31,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:28:31,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:28:31,900 INFO L87 Difference]: Start difference. First operand 3592 states and 5037 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:39,308 INFO L93 Difference]: Finished difference Result 7346 states and 10457 transitions. [2021-11-02 23:28:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:28:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:28:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:39,315 INFO L225 Difference]: With dead ends: 7346 [2021-11-02 23:28:39,315 INFO L226 Difference]: Without dead ends: 6676 [2021-11-02 23:28:39,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:28:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2021-11-02 23:28:40,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 3592. [2021-11-02 23:28:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3563 states have (on average 1.4131349985966881) internal successors, (5035), 3591 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5035 transitions. [2021-11-02 23:28:40,790 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5035 transitions. Word has length 116 [2021-11-02 23:28:40,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:40,790 INFO L470 AbstractCegarLoop]: Abstraction has 3592 states and 5035 transitions. [2021-11-02 23:28:40,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:40,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5035 transitions. [2021-11-02 23:28:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:28:40,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:28:40,793 INFO L513 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] [2021-11-02 23:28:40,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-02 23:28:40,793 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:28:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1960799597, now seen corresponding path program 1 times [2021-11-02 23:28:40,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:40,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540415681] [2021-11-02 23:28:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:40,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:28:40,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:40,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540415681] [2021-11-02 23:28:40,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540415681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:40,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:40,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:28:40,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442086196] [2021-11-02 23:28:40,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:28:40,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:40,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:28:40,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:28:40,936 INFO L87 Difference]: Start difference. First operand 3592 states and 5035 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:53,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:53,693 INFO L93 Difference]: Finished difference Result 10654 states and 15279 transitions. [2021-11-02 23:28:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:28:53,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:28:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:53,703 INFO L225 Difference]: With dead ends: 10654 [2021-11-02 23:28:53,703 INFO L226 Difference]: Without dead ends: 9980 [2021-11-02 23:28:53,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:28:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2021-11-02 23:28:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 3600. [2021-11-02 23:28:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3571 states have (on average 1.4122094651358164) internal successors, (5043), 3599 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5043 transitions. [2021-11-02 23:28:55,228 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5043 transitions. Word has length 116 [2021-11-02 23:28:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:55,228 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 5043 transitions. [2021-11-02 23:28:55,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:28:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5043 transitions. [2021-11-02 23:28:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:28:55,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:28:55,231 INFO L513 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] [2021-11-02 23:28:55,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-11-02 23:28:55,231 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:28:55,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:55,231 INFO L85 PathProgramCache]: Analyzing trace with hash -47900760, now seen corresponding path program 1 times [2021-11-02 23:28:55,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:55,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951660036] [2021-11-02 23:28:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:55,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:28:55,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:55,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951660036] [2021-11-02 23:28:55,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951660036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:55,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:55,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:28:55,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050103094] [2021-11-02 23:28:55,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:28:55,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:55,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:28:55,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:28:55,374 INFO L87 Difference]: Start difference. First operand 3600 states and 5043 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:08,305 INFO L93 Difference]: Finished difference Result 10646 states and 15267 transitions. [2021-11-02 23:29:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:29:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:29:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:08,316 INFO L225 Difference]: With dead ends: 10646 [2021-11-02 23:29:08,316 INFO L226 Difference]: Without dead ends: 9976 [2021-11-02 23:29:08,318 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:29:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2021-11-02 23:29:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 3608. [2021-11-02 23:29:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3579 states have (on average 1.4112880692930987) internal successors, (5051), 3607 states have internal predecessors, (5051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 5051 transitions. [2021-11-02 23:29:09,821 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 5051 transitions. Word has length 116 [2021-11-02 23:29:09,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:09,822 INFO L470 AbstractCegarLoop]: Abstraction has 3608 states and 5051 transitions. [2021-11-02 23:29:09,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 5051 transitions. [2021-11-02 23:29:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:29:09,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:29:09,825 INFO L513 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] [2021-11-02 23:29:09,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-11-02 23:29:09,825 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:29:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:09,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1460670815, now seen corresponding path program 1 times [2021-11-02 23:29:09,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:09,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302800677] [2021-11-02 23:29:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:09,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:29:09,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:09,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302800677] [2021-11-02 23:29:09,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302800677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:09,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:09,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:29:09,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802977602] [2021-11-02 23:29:09,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:29:09,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:09,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:29:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:29:09,979 INFO L87 Difference]: Start difference. First operand 3608 states and 5051 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:23,134 INFO L93 Difference]: Finished difference Result 10654 states and 15273 transitions. [2021-11-02 23:29:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:29:23,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:29:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:23,144 INFO L225 Difference]: With dead ends: 10654 [2021-11-02 23:29:23,144 INFO L226 Difference]: Without dead ends: 9980 [2021-11-02 23:29:23,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:29:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2021-11-02 23:29:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 3624. [2021-11-02 23:29:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.4094575799721836) internal successors, (5067), 3623 states have internal predecessors, (5067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5067 transitions. [2021-11-02 23:29:24,708 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5067 transitions. Word has length 116 [2021-11-02 23:29:24,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:24,708 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5067 transitions. [2021-11-02 23:29:24,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5067 transitions. [2021-11-02 23:29:24,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:29:24,711 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:29:24,711 INFO L513 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] [2021-11-02 23:29:24,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-11-02 23:29:24,712 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:29:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash 811976739, now seen corresponding path program 1 times [2021-11-02 23:29:24,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:24,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860730950] [2021-11-02 23:29:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:24,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:29:24,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:24,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860730950] [2021-11-02 23:29:24,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860730950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:24,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:24,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:29:24,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542827562] [2021-11-02 23:29:24,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:29:24,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:24,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:29:24,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:29:24,834 INFO L87 Difference]: Start difference. First operand 3624 states and 5067 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:31,796 INFO L93 Difference]: Finished difference Result 7350 states and 10451 transitions. [2021-11-02 23:29:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:29:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:29:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:31,807 INFO L225 Difference]: With dead ends: 7350 [2021-11-02 23:29:31,807 INFO L226 Difference]: Without dead ends: 6676 [2021-11-02 23:29:31,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:29:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2021-11-02 23:29:34,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 3624. [2021-11-02 23:29:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3595 states have (on average 1.408344923504868) internal successors, (5063), 3623 states have internal predecessors, (5063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 5063 transitions. [2021-11-02 23:29:34,352 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 5063 transitions. Word has length 116 [2021-11-02 23:29:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:34,352 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 5063 transitions. [2021-11-02 23:29:34,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 5063 transitions. [2021-11-02 23:29:34,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:29:34,356 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:29:34,357 INFO L513 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] [2021-11-02 23:29:34,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-02 23:29:34,357 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:29:34,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:34,358 INFO L85 PathProgramCache]: Analyzing trace with hash -452010555, now seen corresponding path program 1 times [2021-11-02 23:29:34,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:34,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417359251] [2021-11-02 23:29:34,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:34,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:29:34,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:34,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417359251] [2021-11-02 23:29:34,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417359251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:34,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:34,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:29:34,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193834163] [2021-11-02 23:29:34,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:29:34,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:29:34,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:29:34,664 INFO L87 Difference]: Start difference. First operand 3624 states and 5063 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:50,303 INFO L93 Difference]: Finished difference Result 10666 states and 15283 transitions. [2021-11-02 23:29:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:29:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-11-02 23:29:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:50,315 INFO L225 Difference]: With dead ends: 10666 [2021-11-02 23:29:50,315 INFO L226 Difference]: Without dead ends: 9986 [2021-11-02 23:29:50,318 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:29:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2021-11-02 23:29:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 3640. [2021-11-02 23:29:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3611 states have (on average 1.4065355857103294) internal successors, (5079), 3639 states have internal predecessors, (5079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5079 transitions. [2021-11-02 23:29:52,013 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5079 transitions. Word has length 116 [2021-11-02 23:29:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:52,013 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5079 transitions. [2021-11-02 23:29:52,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:29:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5079 transitions. [2021-11-02 23:29:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:29:52,016 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:29:52,016 INFO L513 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] [2021-11-02 23:29:52,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-02 23:29:52,016 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:29:52,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:52,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1332432067, now seen corresponding path program 1 times [2021-11-02 23:29:52,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:52,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302019067] [2021-11-02 23:29:52,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:52,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:29:52,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:52,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302019067] [2021-11-02 23:29:52,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302019067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:52,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:52,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:29:52,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722440364] [2021-11-02 23:29:52,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:29:52,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:52,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:29:52,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:29:52,162 INFO L87 Difference]: Start difference. First operand 3640 states and 5079 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)