./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y --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 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:46:29,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:46:29,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:46:29,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:46:29,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:46:29,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:46:29,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:46:29,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:46:30,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:46:30,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:46:30,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:46:30,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:46:30,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:46:30,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:46:30,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:46:30,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:46:30,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:46:30,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:46:30,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:46:30,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:46:30,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:46:30,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:46:30,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:46:30,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:46:30,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:46:30,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:46:30,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:46:30,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:46:30,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:46:30,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:46:30,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:46:30,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:46:30,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:46:30,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:46:30,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:46:30,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:46:30,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:46:30,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:46:30,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:46:30,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:46:30,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:46:30,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:46:30,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:46:30,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:46:30,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:46:30,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:46:30,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:46:30,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:46:30,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:46:30,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:46:30,096 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:46:30,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:46:30,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:46:30,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:46:30,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:46:30,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:46:30,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:46:30,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:46:30,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:46:30,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:46:30,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:46:30,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:46:30,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:46:30,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:46:30,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:46:30,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:46:30,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:46:30,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:46:30,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:46:30,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:46:30,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:46:30,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:46:30,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:46:30,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:46:30,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:46:30,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:46:30,102 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_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 [2021-11-13 17:46:30,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:46:30,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:46:30,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:46:30,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:46:30,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:46:30,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-13 17:46:30,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/data/6e9ef3c5a/0c6090327ce64b0ea30df88df6285213/FLAG23100ce17 [2021-11-13 17:46:31,653 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:46:31,654 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-13 17:46:31,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/data/6e9ef3c5a/0c6090327ce64b0ea30df88df6285213/FLAG23100ce17 [2021-11-13 17:46:31,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/data/6e9ef3c5a/0c6090327ce64b0ea30df88df6285213 [2021-11-13 17:46:31,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:46:31,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:46:31,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:46:31,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:46:31,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:46:31,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:46:31" (1/1) ... [2021-11-13 17:46:31,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f35308a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:31, skipping insertion in model container [2021-11-13 17:46:31,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:46:31" (1/1) ... [2021-11-13 17:46:31,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:46:32,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:46:33,542 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2021-11-13 17:46:33,731 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2021-11-13 17:46:33,979 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2021-11-13 17:46:34,138 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2021-11-13 17:46:34,180 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2021-11-13 17:46:34,191 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2021-11-13 17:46:34,267 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2021-11-13 17:46:34,297 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2021-11-13 17:46:34,506 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2021-11-13 17:46:34,607 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2021-11-13 17:46:34,861 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2021-11-13 17:46:34,921 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2021-11-13 17:46:34,985 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2021-11-13 17:46:35,008 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2021-11-13 17:46:35,021 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2021-11-13 17:46:35,071 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2021-11-13 17:46:35,120 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2021-11-13 17:46:35,228 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2021-11-13 17:46:35,525 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2021-11-13 17:46:35,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:46:35,820 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:46:36,146 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2021-11-13 17:46:36,245 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2021-11-13 17:46:36,395 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2021-11-13 17:46:36,487 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2021-11-13 17:46:36,515 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2021-11-13 17:46:36,523 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2021-11-13 17:46:36,572 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2021-11-13 17:46:36,593 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2021-11-13 17:46:36,678 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2021-11-13 17:46:36,762 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2021-11-13 17:46:36,989 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2021-11-13 17:46:37,045 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2021-11-13 17:46:37,102 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2021-11-13 17:46:37,123 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2021-11-13 17:46:37,134 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2021-11-13 17:46:37,172 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2021-11-13 17:46:37,213 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2021-11-13 17:46:37,347 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2021-11-13 17:46:37,563 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_12c89579-eba7-4d55-ab47-3f16dea3704c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2021-11-13 17:46:37,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:46:37,836 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:46:37,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37 WrapperNode [2021-11-13 17:46:37,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:46:37,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:46:37,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:46:37,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:46:37,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:46:38,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:46:38,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:46:38,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:46:38,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:38,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:39,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:39,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:39,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:46:39,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:46:39,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:46:39,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:46:39,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (1/1) ... [2021-11-13 17:46:39,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:46:39,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:46:39,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:46:39,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c89579-eba7-4d55-ab47-3f16dea3704c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:46:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:46:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:46:39,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:46:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:46:52,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:46:52,872 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:46:52,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:46:52 BoogieIcfgContainer [2021-11-13 17:46:52,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:46:52,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:46:52,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:46:52,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:46:52,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:46:31" (1/3) ... [2021-11-13 17:46:52,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d521e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:46:52, skipping insertion in model container [2021-11-13 17:46:52,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:46:37" (2/3) ... [2021-11-13 17:46:52,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d521e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:46:52, skipping insertion in model container [2021-11-13 17:46:52,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:46:52" (3/3) ... [2021-11-13 17:46:52,893 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-13 17:46:52,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:46:52,900 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-13 17:46:52,996 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:46:53,010 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 [2021-11-13 17:46:53,011 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-13 17:46:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 6346 states, 6326 states have (on average 1.7758457160923173) internal successors, (11234), 6345 states have internal predecessors, (11234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:46:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-13 17:46:53,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:53,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:53,223 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:46:53,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash -280850909, now seen corresponding path program 1 times [2021-11-13 17:46:53,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:53,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709163362] [2021-11-13 17:46:53,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:53,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:46:53,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:53,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709163362] [2021-11-13 17:46:53,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709163362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:53,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:46:53,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:46:53,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691312771] [2021-11-13 17:46:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:53,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:46:53,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:54,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:46:54,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:46:54,054 INFO L87 Difference]: Start difference. First operand has 6346 states, 6326 states have (on average 1.7758457160923173) internal successors, (11234), 6345 states have internal predecessors, (11234), 0 states have call successors, (0), 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 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:00,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:00,047 INFO L93 Difference]: Finished difference Result 9409 states and 16411 transitions. [2021-11-13 17:47:00,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:00,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-13 17:47:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:00,105 INFO L225 Difference]: With dead ends: 9409 [2021-11-13 17:47:00,106 INFO L226 Difference]: Without dead ends: 5984 [2021-11-13 17:47:00,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:00,122 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 29365 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 4529 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4163.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29365 SdHoareTripleChecker+Valid, 5960 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.83ms SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5212.01ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:00,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29365 Valid, 5960 Invalid, 4636 Unknown, 0 Unchecked, 110.83ms Time], IncrementalHoareTripleChecker [107 Valid, 4529 Invalid, 0 Unknown, 0 Unchecked, 5212.01ms Time] [2021-11-13 17:47:00,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-11-13 17:47:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 5951. [2021-11-13 17:47:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5932 states have (on average 1.295515846257586) internal successors, (7685), 5950 states have internal predecessors, (7685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 7685 transitions. [2021-11-13 17:47:00,492 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 7685 transitions. Word has length 78 [2021-11-13 17:47:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:00,493 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 7685 transitions. [2021-11-13 17:47:00,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 7685 transitions. [2021-11-13 17:47:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:47:00,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:00,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:00,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:47:00,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:00,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash -71857781, now seen corresponding path program 1 times [2021-11-13 17:47:00,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:00,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125513760] [2021-11-13 17:47:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:00,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:00,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:00,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:00,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125513760] [2021-11-13 17:47:00,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125513760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:00,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:00,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:47:00,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929266434] [2021-11-13 17:47:00,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:00,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:00,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:00,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:00,819 INFO L87 Difference]: Start difference. First operand 5951 states and 7685 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:06,391 INFO L93 Difference]: Finished difference Result 11857 states and 15471 transitions. [2021-11-13 17:47:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-13 17:47:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:06,442 INFO L225 Difference]: With dead ends: 11857 [2021-11-13 17:47:06,442 INFO L226 Difference]: Without dead ends: 7978 [2021-11-13 17:47:06,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:06,454 INFO L933 BasicCegarLoop]: 3086 mSDtfsCounter, 23455 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4080.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23455 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 4693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.74ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4992.87ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:06,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23455 Valid, 4112 Invalid, 4693 Unknown, 0 Unchecked, 57.74ms Time], IncrementalHoareTripleChecker [143 Valid, 4550 Invalid, 0 Unknown, 0 Unchecked, 4992.87ms Time] [2021-11-13 17:47:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2021-11-13 17:47:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 7954. [2021-11-13 17:47:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7954 states, 7935 states have (on average 1.2995589161940768) internal successors, (10312), 7953 states have internal predecessors, (10312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7954 states to 7954 states and 10312 transitions. [2021-11-13 17:47:06,900 INFO L78 Accepts]: Start accepts. Automaton has 7954 states and 10312 transitions. Word has length 79 [2021-11-13 17:47:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:06,901 INFO L470 AbstractCegarLoop]: Abstraction has 7954 states and 10312 transitions. [2021-11-13 17:47:06,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:06,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7954 states and 10312 transitions. [2021-11-13 17:47:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:47:06,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:06,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:06,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:47:06,988 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:06,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1179108102, now seen corresponding path program 1 times [2021-11-13 17:47:06,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:06,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009123701] [2021-11-13 17:47:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:06,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:07,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:07,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009123701] [2021-11-13 17:47:07,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009123701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:07,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:07,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:47:07,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661834691] [2021-11-13 17:47:07,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:07,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:07,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:07,213 INFO L87 Difference]: Start difference. First operand 7954 states and 10312 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:11,030 INFO L93 Difference]: Finished difference Result 13550 states and 17555 transitions. [2021-11-13 17:47:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:11,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-13 17:47:11,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:11,080 INFO L225 Difference]: With dead ends: 13550 [2021-11-13 17:47:11,080 INFO L226 Difference]: Without dead ends: 8760 [2021-11-13 17:47:11,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:11,092 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 17833 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2723.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17833 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.72ms SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3372.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:11,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17833 Valid, 3296 Invalid, 3323 Unknown, 0 Unchecked, 33.72ms Time], IncrementalHoareTripleChecker [92 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 3372.47ms Time] [2021-11-13 17:47:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2021-11-13 17:47:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 8729. [2021-11-13 17:47:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 8710 states have (on average 1.304247990815155) internal successors, (11360), 8728 states have internal predecessors, (11360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 11360 transitions. [2021-11-13 17:47:11,576 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 11360 transitions. Word has length 80 [2021-11-13 17:47:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:11,577 INFO L470 AbstractCegarLoop]: Abstraction has 8729 states and 11360 transitions. [2021-11-13 17:47:11,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:11,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 11360 transitions. [2021-11-13 17:47:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:47:11,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:11,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:11,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:47:11,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:11,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:11,601 INFO L85 PathProgramCache]: Analyzing trace with hash -420988062, now seen corresponding path program 1 times [2021-11-13 17:47:11,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:11,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320033761] [2021-11-13 17:47:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:11,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:11,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:11,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320033761] [2021-11-13 17:47:11,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320033761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:11,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:11,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:47:11,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309230179] [2021-11-13 17:47:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:11,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:47:11,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:11,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:47:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:47:11,993 INFO L87 Difference]: Start difference. First operand 8729 states and 11360 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:18,712 INFO L93 Difference]: Finished difference Result 9906 states and 12924 transitions. [2021-11-13 17:47:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:47:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-13 17:47:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:18,752 INFO L225 Difference]: With dead ends: 9906 [2021-11-13 17:47:18,752 INFO L226 Difference]: Without dead ends: 9900 [2021-11-13 17:47:18,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:47:18,758 INFO L933 BasicCegarLoop]: 2544 mSDtfsCounter, 22123 mSDsluCounter, 9313 mSDsCounter, 0 mSdLazyCounter, 11387 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4842.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22123 SdHoareTripleChecker+Valid, 11857 SdHoareTripleChecker+Invalid, 11813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 74.03ms SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 11387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6011.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:18,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22123 Valid, 11857 Invalid, 11813 Unknown, 0 Unchecked, 74.03ms Time], IncrementalHoareTripleChecker [426 Valid, 11387 Invalid, 0 Unknown, 0 Unchecked, 6011.04ms Time] [2021-11-13 17:47:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9900 states. [2021-11-13 17:47:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9900 to 8729. [2021-11-13 17:47:19,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 8710 states have (on average 1.3041331802525833) internal successors, (11359), 8728 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 11359 transitions. [2021-11-13 17:47:19,282 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 11359 transitions. Word has length 80 [2021-11-13 17:47:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:19,285 INFO L470 AbstractCegarLoop]: Abstraction has 8729 states and 11359 transitions. [2021-11-13 17:47:19,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 11359 transitions. [2021-11-13 17:47:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:47:19,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:19,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:19,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:47:19,304 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:19,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:19,306 INFO L85 PathProgramCache]: Analyzing trace with hash 581417844, now seen corresponding path program 1 times [2021-11-13 17:47:19,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:19,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038466369] [2021-11-13 17:47:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:19,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:19,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:19,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038466369] [2021-11-13 17:47:19,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038466369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:19,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:19,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:47:19,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287527933] [2021-11-13 17:47:19,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:19,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:19,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:19,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:19,504 INFO L87 Difference]: Start difference. First operand 8729 states and 11359 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:22,531 INFO L93 Difference]: Finished difference Result 18073 states and 23533 transitions. [2021-11-13 17:47:22,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-13 17:47:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:22,554 INFO L225 Difference]: With dead ends: 18073 [2021-11-13 17:47:22,555 INFO L226 Difference]: Without dead ends: 11729 [2021-11-13 17:47:22,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:22,565 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 16847 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2030.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16847 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.81ms SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2540.17ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:22,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16847 Valid, 3128 Invalid, 3335 Unknown, 0 Unchecked, 24.81ms Time], IncrementalHoareTripleChecker [242 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 2540.17ms Time] [2021-11-13 17:47:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11729 states. [2021-11-13 17:47:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11729 to 11701. [2021-11-13 17:47:23,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11701 states, 11682 states have (on average 1.2846259202191406) internal successors, (15007), 11700 states have internal predecessors, (15007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11701 states to 11701 states and 15007 transitions. [2021-11-13 17:47:23,086 INFO L78 Accepts]: Start accepts. Automaton has 11701 states and 15007 transitions. Word has length 80 [2021-11-13 17:47:23,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:23,086 INFO L470 AbstractCegarLoop]: Abstraction has 11701 states and 15007 transitions. [2021-11-13 17:47:23,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 11701 states and 15007 transitions. [2021-11-13 17:47:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:47:23,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:23,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:23,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:47:23,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1834750067, now seen corresponding path program 1 times [2021-11-13 17:47:23,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:23,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387873452] [2021-11-13 17:47:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:23,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:23,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:23,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387873452] [2021-11-13 17:47:23,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387873452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:23,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:23,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:47:23,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605977155] [2021-11-13 17:47:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:23,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:23,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:23,639 INFO L87 Difference]: Start difference. First operand 11701 states and 15007 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:30,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:30,147 INFO L93 Difference]: Finished difference Result 30001 states and 41693 transitions. [2021-11-13 17:47:30,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 17:47:30,147 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-13 17:47:30,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:30,223 INFO L225 Difference]: With dead ends: 30001 [2021-11-13 17:47:30,223 INFO L226 Difference]: Without dead ends: 29992 [2021-11-13 17:47:30,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 17:47:30,234 INFO L933 BasicCegarLoop]: 4976 mSDtfsCounter, 26217 mSDsluCounter, 35225 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2911.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26217 SdHoareTripleChecker+Valid, 40201 SdHoareTripleChecker+Invalid, 5198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.87ms SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3496.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:30,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26217 Valid, 40201 Invalid, 5198 Unknown, 0 Unchecked, 83.87ms Time], IncrementalHoareTripleChecker [607 Valid, 4591 Invalid, 0 Unknown, 0 Unchecked, 3496.51ms Time] [2021-11-13 17:47:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29992 states. [2021-11-13 17:47:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29992 to 11692. [2021-11-13 17:47:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 11674 states have (on average 1.2847353092341955) internal successors, (14998), 11691 states have internal predecessors, (14998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 14998 transitions. [2021-11-13 17:47:31,177 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 14998 transitions. Word has length 81 [2021-11-13 17:47:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:31,177 INFO L470 AbstractCegarLoop]: Abstraction has 11692 states and 14998 transitions. [2021-11-13 17:47:31,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 14998 transitions. [2021-11-13 17:47:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:47:31,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:31,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:31,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:47:31,195 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2058965680, now seen corresponding path program 1 times [2021-11-13 17:47:31,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:31,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206946993] [2021-11-13 17:47:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:31,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:31,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:31,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206946993] [2021-11-13 17:47:31,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206946993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:31,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:31,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:47:31,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446346350] [2021-11-13 17:47:31,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:31,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:31,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:31,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:31,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:31,344 INFO L87 Difference]: Start difference. First operand 11692 states and 14998 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:34,697 INFO L93 Difference]: Finished difference Result 23265 states and 30123 transitions. [2021-11-13 17:47:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:47:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-13 17:47:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:34,739 INFO L225 Difference]: With dead ends: 23265 [2021-11-13 17:47:34,739 INFO L226 Difference]: Without dead ends: 16049 [2021-11-13 17:47:34,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:47:34,755 INFO L933 BasicCegarLoop]: 2195 mSDtfsCounter, 15554 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1863.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15554 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.79ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2336.27ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:34,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15554 Valid, 2965 Invalid, 2890 Unknown, 0 Unchecked, 24.79ms Time], IncrementalHoareTripleChecker [88 Valid, 2802 Invalid, 0 Unknown, 0 Unchecked, 2336.27ms Time] [2021-11-13 17:47:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16049 states. [2021-11-13 17:47:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16049 to 16029. [2021-11-13 17:47:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16029 states, 16011 states have (on average 1.291674473799263) internal successors, (20681), 16028 states have internal predecessors, (20681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16029 states to 16029 states and 20681 transitions. [2021-11-13 17:47:36,074 INFO L78 Accepts]: Start accepts. Automaton has 16029 states and 20681 transitions. Word has length 81 [2021-11-13 17:47:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:36,074 INFO L470 AbstractCegarLoop]: Abstraction has 16029 states and 20681 transitions. [2021-11-13 17:47:36,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16029 states and 20681 transitions. [2021-11-13 17:47:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:47:36,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:36,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:36,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:47:36,091 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash -262268880, now seen corresponding path program 1 times [2021-11-13 17:47:36,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:36,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143199385] [2021-11-13 17:47:36,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:36,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:36,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:36,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143199385] [2021-11-13 17:47:36,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143199385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:36,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:36,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:47:36,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853023172] [2021-11-13 17:47:36,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:36,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:47:36,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:47:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:47:36,351 INFO L87 Difference]: Start difference. First operand 16029 states and 20681 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:44,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:44,799 INFO L93 Difference]: Finished difference Result 33640 states and 46014 transitions. [2021-11-13 17:47:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 17:47:44,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-13 17:47:44,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:44,840 INFO L225 Difference]: With dead ends: 33640 [2021-11-13 17:47:44,840 INFO L226 Difference]: Without dead ends: 30257 [2021-11-13 17:47:44,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:47:44,851 INFO L933 BasicCegarLoop]: 2278 mSDtfsCounter, 10779 mSDsluCounter, 9747 mSDsCounter, 0 mSdLazyCounter, 12100 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4633.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10779 SdHoareTripleChecker+Valid, 12025 SdHoareTripleChecker+Invalid, 12181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.30ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 12100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5740.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:44,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10779 Valid, 12025 Invalid, 12181 Unknown, 0 Unchecked, 59.30ms Time], IncrementalHoareTripleChecker [81 Valid, 12100 Invalid, 0 Unknown, 0 Unchecked, 5740.90ms Time] [2021-11-13 17:47:44,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30257 states. [2021-11-13 17:47:46,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30257 to 16036. [2021-11-13 17:47:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16036 states, 16018 states have (on average 1.2915470096141841) internal successors, (20688), 16035 states have internal predecessors, (20688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16036 states to 16036 states and 20688 transitions. [2021-11-13 17:47:46,179 INFO L78 Accepts]: Start accepts. Automaton has 16036 states and 20688 transitions. Word has length 81 [2021-11-13 17:47:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:46,180 INFO L470 AbstractCegarLoop]: Abstraction has 16036 states and 20688 transitions. [2021-11-13 17:47:46,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 16036 states and 20688 transitions. [2021-11-13 17:47:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:47:46,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:46,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:46,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:47:46,196 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash -237576773, now seen corresponding path program 1 times [2021-11-13 17:47:46,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:46,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788468315] [2021-11-13 17:47:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:46,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:46,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:46,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788468315] [2021-11-13 17:47:46,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788468315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:46,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:46,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:47:46,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117020036] [2021-11-13 17:47:46,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:46,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:47:46,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:47:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:47:46,310 INFO L87 Difference]: Start difference. First operand 16036 states and 20688 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:48,149 INFO L93 Difference]: Finished difference Result 31929 states and 41560 transitions. [2021-11-13 17:47:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:47:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-13 17:47:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:48,182 INFO L225 Difference]: With dead ends: 31929 [2021-11-13 17:47:48,182 INFO L226 Difference]: Without dead ends: 19647 [2021-11-13 17:47:48,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:47:48,200 INFO L933 BasicCegarLoop]: 3945 mSDtfsCounter, 3985 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 285.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.02ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 365.01ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:48,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3985 Valid, 5024 Invalid, 480 Unknown, 0 Unchecked, 13.02ms Time], IncrementalHoareTripleChecker [26 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 365.01ms Time] [2021-11-13 17:47:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19647 states. [2021-11-13 17:47:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19647 to 19618. [2021-11-13 17:47:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19618 states, 19600 states have (on average 1.2878061224489796) internal successors, (25241), 19617 states have internal predecessors, (25241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19618 states to 19618 states and 25241 transitions. [2021-11-13 17:47:49,660 INFO L78 Accepts]: Start accepts. Automaton has 19618 states and 25241 transitions. Word has length 82 [2021-11-13 17:47:49,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:49,660 INFO L470 AbstractCegarLoop]: Abstraction has 19618 states and 25241 transitions. [2021-11-13 17:47:49,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 19618 states and 25241 transitions. [2021-11-13 17:47:49,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:47:49,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:49,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:49,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:47:49,676 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:47:49,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:49,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1592112302, now seen corresponding path program 1 times [2021-11-13 17:47:49,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:49,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373485831] [2021-11-13 17:47:49,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:49,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:50,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:50,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373485831] [2021-11-13 17:47:50,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373485831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:50,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:50,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-13 17:47:50,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460007498] [2021-11-13 17:47:50,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:50,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 17:47:50,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:50,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 17:47:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:47:50,799 INFO L87 Difference]: Start difference. First operand 19618 states and 25241 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:07,843 INFO L93 Difference]: Finished difference Result 51275 states and 71550 transitions. [2021-11-13 17:48:07,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-13 17:48:07,843 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-13 17:48:07,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:07,923 INFO L225 Difference]: With dead ends: 51275 [2021-11-13 17:48:07,923 INFO L226 Difference]: Without dead ends: 51271 [2021-11-13 17:48:07,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=536, Invalid=2326, Unknown=0, NotChecked=0, Total=2862 [2021-11-13 17:48:07,934 INFO L933 BasicCegarLoop]: 3952 mSDtfsCounter, 37735 mSDsluCounter, 45171 mSDsCounter, 0 mSdLazyCounter, 10480 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6148.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37735 SdHoareTripleChecker+Valid, 49123 SdHoareTripleChecker+Invalid, 11138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 120.83ms SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 10480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7233.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:07,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37735 Valid, 49123 Invalid, 11138 Unknown, 0 Unchecked, 120.83ms Time], IncrementalHoareTripleChecker [658 Valid, 10480 Invalid, 0 Unknown, 0 Unchecked, 7233.14ms Time] [2021-11-13 17:48:07,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51271 states. [2021-11-13 17:48:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51271 to 19614. [2021-11-13 17:48:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19614 states, 19597 states have (on average 1.287799152931571) internal successors, (25237), 19613 states have internal predecessors, (25237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19614 states to 19614 states and 25237 transitions. [2021-11-13 17:48:10,089 INFO L78 Accepts]: Start accepts. Automaton has 19614 states and 25237 transitions. Word has length 82 [2021-11-13 17:48:10,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:10,089 INFO L470 AbstractCegarLoop]: Abstraction has 19614 states and 25237 transitions. [2021-11-13 17:48:10,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,090 INFO L276 IsEmpty]: Start isEmpty. Operand 19614 states and 25237 transitions. [2021-11-13 17:48:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-13 17:48:10,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:10,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:10,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:48:10,100 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:48:10,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:10,100 INFO L85 PathProgramCache]: Analyzing trace with hash 369377035, now seen corresponding path program 1 times [2021-11-13 17:48:10,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:10,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789743676] [2021-11-13 17:48:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:10,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:10,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:10,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789743676] [2021-11-13 17:48:10,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789743676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:10,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:10,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:48:10,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469723707] [2021-11-13 17:48:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:10,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:48:10,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:48:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:48:10,300 INFO L87 Difference]: Start difference. First operand 19614 states and 25237 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:17,277 INFO L93 Difference]: Finished difference Result 24831 states and 32142 transitions. [2021-11-13 17:48:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:48:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-13 17:48:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:17,311 INFO L225 Difference]: With dead ends: 24831 [2021-11-13 17:48:17,311 INFO L226 Difference]: Without dead ends: 24822 [2021-11-13 17:48:17,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:48:17,318 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 20979 mSDsluCounter, 6879 mSDsCounter, 0 mSdLazyCounter, 8296 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3383.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20979 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 8858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.15ms SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 8296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4173.92ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:17,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20979 Valid, 9045 Invalid, 8858 Unknown, 0 Unchecked, 45.15ms Time], IncrementalHoareTripleChecker [562 Valid, 8296 Invalid, 0 Unknown, 0 Unchecked, 4173.92ms Time] [2021-11-13 17:48:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24822 states. [2021-11-13 17:48:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24822 to 19614. [2021-11-13 17:48:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19614 states, 19597 states have (on average 1.2877481247129663) internal successors, (25236), 19613 states have internal predecessors, (25236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19614 states to 19614 states and 25236 transitions. [2021-11-13 17:48:19,236 INFO L78 Accepts]: Start accepts. Automaton has 19614 states and 25236 transitions. Word has length 83 [2021-11-13 17:48:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:19,236 INFO L470 AbstractCegarLoop]: Abstraction has 19614 states and 25236 transitions. [2021-11-13 17:48:19,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 19614 states and 25236 transitions. [2021-11-13 17:48:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-13 17:48:19,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:19,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:19,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:48:19,245 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:48:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash 505173845, now seen corresponding path program 1 times [2021-11-13 17:48:19,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:19,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082602137] [2021-11-13 17:48:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:19,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:19,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:19,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082602137] [2021-11-13 17:48:19,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082602137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:19,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:19,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:48:19,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936652299] [2021-11-13 17:48:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:19,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:48:19,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:19,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:48:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:48:19,468 INFO L87 Difference]: Start difference. First operand 19614 states and 25236 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:29,951 INFO L93 Difference]: Finished difference Result 45132 states and 62306 transitions. [2021-11-13 17:48:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 17:48:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-13 17:48:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:30,015 INFO L225 Difference]: With dead ends: 45132 [2021-11-13 17:48:30,015 INFO L226 Difference]: Without dead ends: 40312 [2021-11-13 17:48:30,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:48:30,029 INFO L933 BasicCegarLoop]: 2368 mSDtfsCounter, 19802 mSDsluCounter, 8616 mSDsCounter, 0 mSdLazyCounter, 10092 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4001.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19802 SdHoareTripleChecker+Valid, 10984 SdHoareTripleChecker+Invalid, 10498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.21ms SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 10092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5066.23ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:30,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19802 Valid, 10984 Invalid, 10498 Unknown, 0 Unchecked, 54.21ms Time], IncrementalHoareTripleChecker [406 Valid, 10092 Invalid, 0 Unknown, 0 Unchecked, 5066.23ms Time] [2021-11-13 17:48:30,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40312 states. [2021-11-13 17:48:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40312 to 19584. [2021-11-13 17:48:32,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19584 states, 19567 states have (on average 1.2879337660346502) internal successors, (25201), 19583 states have internal predecessors, (25201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:32,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19584 states to 19584 states and 25201 transitions. [2021-11-13 17:48:32,375 INFO L78 Accepts]: Start accepts. Automaton has 19584 states and 25201 transitions. Word has length 83 [2021-11-13 17:48:32,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:32,375 INFO L470 AbstractCegarLoop]: Abstraction has 19584 states and 25201 transitions. [2021-11-13 17:48:32,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19584 states and 25201 transitions. [2021-11-13 17:48:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:48:32,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:32,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:32,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:48:32,388 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:48:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:32,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1309648752, now seen corresponding path program 1 times [2021-11-13 17:48:32,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:32,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409792761] [2021-11-13 17:48:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:32,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:32,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:32,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409792761] [2021-11-13 17:48:32,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409792761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:32,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:32,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:32,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926634684] [2021-11-13 17:48:32,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:32,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:48:32,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:32,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:48:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:48:32,820 INFO L87 Difference]: Start difference. First operand 19584 states and 25201 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:44,041 INFO L93 Difference]: Finished difference Result 51239 states and 71702 transitions. [2021-11-13 17:48:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:48:44,042 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-13 17:48:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:44,136 INFO L225 Difference]: With dead ends: 51239 [2021-11-13 17:48:44,136 INFO L226 Difference]: Without dead ends: 51227 [2021-11-13 17:48:44,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2021-11-13 17:48:44,149 INFO L933 BasicCegarLoop]: 4360 mSDtfsCounter, 20818 mSDsluCounter, 21275 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1883.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20818 SdHoareTripleChecker+Valid, 25635 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.37ms SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2269.19ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:44,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20818 Valid, 25635 Invalid, 3440 Unknown, 0 Unchecked, 62.37ms Time], IncrementalHoareTripleChecker [422 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 2269.19ms Time] [2021-11-13 17:48:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51227 states. [2021-11-13 17:48:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51227 to 19577. [2021-11-13 17:48:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19577 states, 19560 states have (on average 1.2879856850715747) internal successors, (25193), 19576 states have internal predecessors, (25193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19577 states to 19577 states and 25193 transitions. [2021-11-13 17:48:47,111 INFO L78 Accepts]: Start accepts. Automaton has 19577 states and 25193 transitions. Word has length 84 [2021-11-13 17:48:47,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:47,112 INFO L470 AbstractCegarLoop]: Abstraction has 19577 states and 25193 transitions. [2021-11-13 17:48:47,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 19577 states and 25193 transitions. [2021-11-13 17:48:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:48:47,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:47,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:47,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 17:48:47,128 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:48:47,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1761554934, now seen corresponding path program 1 times [2021-11-13 17:48:47,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:47,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298068773] [2021-11-13 17:48:47,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:47,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:47,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:47,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298068773] [2021-11-13 17:48:47,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298068773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:47,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:47,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:47,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861628994] [2021-11-13 17:48:47,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:47,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:48:47,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:47,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:48:47,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:48:47,659 INFO L87 Difference]: Start difference. First operand 19577 states and 25193 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:48:56,407 INFO L93 Difference]: Finished difference Result 35635 states and 49304 transitions. [2021-11-13 17:48:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:48:56,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-13 17:48:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:48:56,450 INFO L225 Difference]: With dead ends: 35635 [2021-11-13 17:48:56,451 INFO L226 Difference]: Without dead ends: 30812 [2021-11-13 17:48:56,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:48:56,462 INFO L933 BasicCegarLoop]: 4139 mSDtfsCounter, 20461 mSDsluCounter, 18483 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1876.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20461 SdHoareTripleChecker+Valid, 22622 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.32ms SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2228.18ms IncrementalHoareTripleChecker+Time [2021-11-13 17:48:56,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20461 Valid, 22622 Invalid, 2985 Unknown, 0 Unchecked, 57.32ms Time], IncrementalHoareTripleChecker [184 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 2228.18ms Time] [2021-11-13 17:48:56,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30812 states. [2021-11-13 17:48:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30812 to 19540. [2021-11-13 17:48:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19540 states, 19524 states have (on average 1.288260602335587) internal successors, (25152), 19539 states have internal predecessors, (25152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19540 states to 19540 states and 25152 transitions. [2021-11-13 17:48:59,381 INFO L78 Accepts]: Start accepts. Automaton has 19540 states and 25152 transitions. Word has length 84 [2021-11-13 17:48:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:48:59,381 INFO L470 AbstractCegarLoop]: Abstraction has 19540 states and 25152 transitions. [2021-11-13 17:48:59,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 19540 states and 25152 transitions. [2021-11-13 17:48:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:48:59,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:48:59,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:59,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 17:48:59,395 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:48:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1547876573, now seen corresponding path program 1 times [2021-11-13 17:48:59,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:59,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554494045] [2021-11-13 17:48:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:59,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:59,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:59,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554494045] [2021-11-13 17:48:59,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554494045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:59,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:59,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:48:59,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194083746] [2021-11-13 17:48:59,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:59,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:48:59,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:59,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:48:59,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:48:59,614 INFO L87 Difference]: Start difference. First operand 19540 states and 25152 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:09,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:09,718 INFO L93 Difference]: Finished difference Result 29373 states and 39817 transitions. [2021-11-13 17:49:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:49:09,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-13 17:49:09,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:09,750 INFO L225 Difference]: With dead ends: 29373 [2021-11-13 17:49:09,750 INFO L226 Difference]: Without dead ends: 24283 [2021-11-13 17:49:09,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:49:09,761 INFO L933 BasicCegarLoop]: 2182 mSDtfsCounter, 15077 mSDsluCounter, 9157 mSDsCounter, 0 mSdLazyCounter, 11226 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4268.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15077 SdHoareTripleChecker+Valid, 11339 SdHoareTripleChecker+Invalid, 11363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.72ms SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 11226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5237.28ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:09,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15077 Valid, 11339 Invalid, 11363 Unknown, 0 Unchecked, 51.72ms Time], IncrementalHoareTripleChecker [137 Valid, 11226 Invalid, 0 Unknown, 0 Unchecked, 5237.28ms Time] [2021-11-13 17:49:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24283 states. [2021-11-13 17:49:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24283 to 19242. [2021-11-13 17:49:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19242 states, 19226 states have (on average 1.2894517840424424) internal successors, (24791), 19241 states have internal predecessors, (24791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19242 states to 19242 states and 24791 transitions. [2021-11-13 17:49:12,927 INFO L78 Accepts]: Start accepts. Automaton has 19242 states and 24791 transitions. Word has length 84 [2021-11-13 17:49:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:12,927 INFO L470 AbstractCegarLoop]: Abstraction has 19242 states and 24791 transitions. [2021-11-13 17:49:12,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 19242 states and 24791 transitions. [2021-11-13 17:49:12,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:49:12,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:12,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:12,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 17:49:12,943 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:49:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:12,944 INFO L85 PathProgramCache]: Analyzing trace with hash 295666503, now seen corresponding path program 1 times [2021-11-13 17:49:12,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:12,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226596962] [2021-11-13 17:49:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:12,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:13,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:13,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226596962] [2021-11-13 17:49:13,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226596962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:13,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:13,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:49:13,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497830312] [2021-11-13 17:49:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:13,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:49:13,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:49:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:49:13,187 INFO L87 Difference]: Start difference. First operand 19242 states and 24791 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:28,133 INFO L93 Difference]: Finished difference Result 44968 states and 62114 transitions. [2021-11-13 17:49:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 17:49:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:49:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:28,198 INFO L225 Difference]: With dead ends: 44968 [2021-11-13 17:49:28,198 INFO L226 Difference]: Without dead ends: 39964 [2021-11-13 17:49:28,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:49:28,211 INFO L933 BasicCegarLoop]: 2334 mSDtfsCounter, 13912 mSDsluCounter, 8481 mSDsCounter, 0 mSdLazyCounter, 9967 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4372.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13912 SdHoareTripleChecker+Valid, 10815 SdHoareTripleChecker+Invalid, 10274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.89ms SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 9967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5428.89ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:28,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13912 Valid, 10815 Invalid, 10274 Unknown, 0 Unchecked, 65.89ms Time], IncrementalHoareTripleChecker [307 Valid, 9967 Invalid, 0 Unknown, 0 Unchecked, 5428.89ms Time] [2021-11-13 17:49:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39964 states. [2021-11-13 17:49:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39964 to 19242. [2021-11-13 17:49:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19242 states, 19226 states have (on average 1.2893997711432434) internal successors, (24790), 19241 states have internal predecessors, (24790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19242 states to 19242 states and 24790 transitions. [2021-11-13 17:49:31,797 INFO L78 Accepts]: Start accepts. Automaton has 19242 states and 24790 transitions. Word has length 85 [2021-11-13 17:49:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:31,797 INFO L470 AbstractCegarLoop]: Abstraction has 19242 states and 24790 transitions. [2021-11-13 17:49:31,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 19242 states and 24790 transitions. [2021-11-13 17:49:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:49:31,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:31,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:31,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 17:49:31,811 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:49:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash -103497425, now seen corresponding path program 1 times [2021-11-13 17:49:31,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:31,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921159644] [2021-11-13 17:49:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:31,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:31,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:31,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921159644] [2021-11-13 17:49:31,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921159644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:31,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:31,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:49:31,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055439204] [2021-11-13 17:49:31,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:31,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:49:31,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:31,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:49:31,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:49:31,986 INFO L87 Difference]: Start difference. First operand 19242 states and 24790 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:43,809 INFO L93 Difference]: Finished difference Result 29698 states and 39309 transitions. [2021-11-13 17:49:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:49:43,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:49:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:43,856 INFO L225 Difference]: With dead ends: 29698 [2021-11-13 17:49:43,856 INFO L226 Difference]: Without dead ends: 29687 [2021-11-13 17:49:43,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:49:43,864 INFO L933 BasicCegarLoop]: 2329 mSDtfsCounter, 10288 mSDsluCounter, 7315 mSDsCounter, 0 mSdLazyCounter, 8967 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3891.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10288 SdHoareTripleChecker+Valid, 9644 SdHoareTripleChecker+Invalid, 9230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.17ms SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 8967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4857.79ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:43,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10288 Valid, 9644 Invalid, 9230 Unknown, 0 Unchecked, 61.17ms Time], IncrementalHoareTripleChecker [263 Valid, 8967 Invalid, 0 Unknown, 0 Unchecked, 4857.79ms Time] [2021-11-13 17:49:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29687 states. [2021-11-13 17:49:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29687 to 19242. [2021-11-13 17:49:47,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19242 states, 19226 states have (on average 1.2893477582440445) internal successors, (24789), 19241 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19242 states to 19242 states and 24789 transitions. [2021-11-13 17:49:47,448 INFO L78 Accepts]: Start accepts. Automaton has 19242 states and 24789 transitions. Word has length 85 [2021-11-13 17:49:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:47,449 INFO L470 AbstractCegarLoop]: Abstraction has 19242 states and 24789 transitions. [2021-11-13 17:49:47,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 19242 states and 24789 transitions. [2021-11-13 17:49:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:49:47,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:47,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:47,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 17:49:47,464 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:49:47,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:47,464 INFO L85 PathProgramCache]: Analyzing trace with hash 384265259, now seen corresponding path program 1 times [2021-11-13 17:49:47,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:47,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359927306] [2021-11-13 17:49:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:47,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:47,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:47,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359927306] [2021-11-13 17:49:47,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359927306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:47,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:47,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:49:47,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450484150] [2021-11-13 17:49:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:47,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:49:47,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:47,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:49:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:49:47,572 INFO L87 Difference]: Start difference. First operand 19242 states and 24789 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:51,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:51,556 INFO L93 Difference]: Finished difference Result 29298 states and 38960 transitions. [2021-11-13 17:49:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:49:51,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:49:51,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:51,586 INFO L225 Difference]: With dead ends: 29298 [2021-11-13 17:49:51,586 INFO L226 Difference]: Without dead ends: 17884 [2021-11-13 17:49:51,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:49:51,599 INFO L933 BasicCegarLoop]: 2986 mSDtfsCounter, 2960 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.29ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.21ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:51,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2960 Valid, 3877 Invalid, 204 Unknown, 0 Unchecked, 10.29ms Time], IncrementalHoareTripleChecker [10 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 183.21ms Time] [2021-11-13 17:49:51,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2021-11-13 17:49:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 17870. [2021-11-13 17:49:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17870 states, 17858 states have (on average 1.3249524022846904) internal successors, (23661), 17869 states have internal predecessors, (23661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 23661 transitions. [2021-11-13 17:49:55,835 INFO L78 Accepts]: Start accepts. Automaton has 17870 states and 23661 transitions. Word has length 85 [2021-11-13 17:49:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:55,836 INFO L470 AbstractCegarLoop]: Abstraction has 17870 states and 23661 transitions. [2021-11-13 17:49:55,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 17870 states and 23661 transitions. [2021-11-13 17:49:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:49:55,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:55,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:55,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 17:49:55,846 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:49:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash -462001234, now seen corresponding path program 1 times [2021-11-13 17:49:55,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:55,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245276163] [2021-11-13 17:49:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:55,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:56,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:56,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245276163] [2021-11-13 17:49:56,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245276163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:56,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:56,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:49:56,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355581051] [2021-11-13 17:49:56,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:56,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:49:56,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:49:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:49:56,040 INFO L87 Difference]: Start difference. First operand 17870 states and 23661 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:11,527 INFO L93 Difference]: Finished difference Result 41731 states and 58519 transitions. [2021-11-13 17:50:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:50:11,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:50:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:11,589 INFO L225 Difference]: With dead ends: 41731 [2021-11-13 17:50:11,589 INFO L226 Difference]: Without dead ends: 34621 [2021-11-13 17:50:11,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:50:11,602 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 15928 mSDsluCounter, 5488 mSDsCounter, 0 mSdLazyCounter, 6255 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3371.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15928 SdHoareTripleChecker+Valid, 7217 SdHoareTripleChecker+Invalid, 6634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.36ms SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 6255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4182.25ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:11,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15928 Valid, 7217 Invalid, 6634 Unknown, 0 Unchecked, 56.36ms Time], IncrementalHoareTripleChecker [379 Valid, 6255 Invalid, 0 Unknown, 0 Unchecked, 4182.25ms Time] [2021-11-13 17:50:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34621 states. [2021-11-13 17:50:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34621 to 17870. [2021-11-13 17:50:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17870 states, 17858 states have (on average 1.3248964049725613) internal successors, (23660), 17869 states have internal predecessors, (23660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 23660 transitions. [2021-11-13 17:50:16,225 INFO L78 Accepts]: Start accepts. Automaton has 17870 states and 23660 transitions. Word has length 85 [2021-11-13 17:50:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:16,226 INFO L470 AbstractCegarLoop]: Abstraction has 17870 states and 23660 transitions. [2021-11-13 17:50:16,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand 17870 states and 23660 transitions. [2021-11-13 17:50:16,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:50:16,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:16,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:16,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 17:50:16,240 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:50:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1853733740, now seen corresponding path program 1 times [2021-11-13 17:50:16,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:50:16,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096125040] [2021-11-13 17:50:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:16,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:50:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:16,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:50:16,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096125040] [2021-11-13 17:50:16,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096125040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:16,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:16,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:50:16,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030435893] [2021-11-13 17:50:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:16,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:50:16,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:50:16,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:50:16,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:50:16,469 INFO L87 Difference]: Start difference. First operand 17870 states and 23660 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:30,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:30,456 INFO L93 Difference]: Finished difference Result 37043 states and 52234 transitions. [2021-11-13 17:50:30,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:50:30,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:50:30,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:30,504 INFO L225 Difference]: With dead ends: 37043 [2021-11-13 17:50:30,504 INFO L226 Difference]: Without dead ends: 29955 [2021-11-13 17:50:30,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:50:30,517 INFO L933 BasicCegarLoop]: 1746 mSDtfsCounter, 13722 mSDsluCounter, 6695 mSDsCounter, 0 mSdLazyCounter, 7062 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3439.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13722 SdHoareTripleChecker+Valid, 8441 SdHoareTripleChecker+Invalid, 7435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.06ms SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 7062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4249.56ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:30,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13722 Valid, 8441 Invalid, 7435 Unknown, 0 Unchecked, 52.06ms Time], IncrementalHoareTripleChecker [373 Valid, 7062 Invalid, 0 Unknown, 0 Unchecked, 4249.56ms Time] [2021-11-13 17:50:30,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29955 states. [2021-11-13 17:50:35,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29955 to 17870. [2021-11-13 17:50:35,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17870 states, 17858 states have (on average 1.3248404076604323) internal successors, (23659), 17869 states have internal predecessors, (23659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 23659 transitions. [2021-11-13 17:50:35,257 INFO L78 Accepts]: Start accepts. Automaton has 17870 states and 23659 transitions. Word has length 85 [2021-11-13 17:50:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:35,257 INFO L470 AbstractCegarLoop]: Abstraction has 17870 states and 23659 transitions. [2021-11-13 17:50:35,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 17870 states and 23659 transitions. [2021-11-13 17:50:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:50:35,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:35,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:35,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 17:50:35,269 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:50:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:35,270 INFO L85 PathProgramCache]: Analyzing trace with hash -466064340, now seen corresponding path program 1 times [2021-11-13 17:50:35,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:50:35,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632145593] [2021-11-13 17:50:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:35,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:50:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:35,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:50:35,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632145593] [2021-11-13 17:50:35,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632145593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:35,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:35,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:50:35,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582552671] [2021-11-13 17:50:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:35,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:50:35,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:50:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:50:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:50:35,462 INFO L87 Difference]: Start difference. First operand 17870 states and 23659 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:54,566 INFO L93 Difference]: Finished difference Result 49003 states and 69054 transitions. [2021-11-13 17:50:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:50:54,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:50:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:54,649 INFO L225 Difference]: With dead ends: 49003 [2021-11-13 17:50:54,649 INFO L226 Difference]: Without dead ends: 41778 [2021-11-13 17:50:54,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:50:54,668 INFO L933 BasicCegarLoop]: 1899 mSDtfsCounter, 12168 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 6919 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3289.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12168 SdHoareTripleChecker+Valid, 7779 SdHoareTripleChecker+Invalid, 7183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.64ms SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 6919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4115.91ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:54,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12168 Valid, 7779 Invalid, 7183 Unknown, 0 Unchecked, 54.64ms Time], IncrementalHoareTripleChecker [264 Valid, 6919 Invalid, 0 Unknown, 0 Unchecked, 4115.91ms Time] [2021-11-13 17:50:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41778 states. [2021-11-13 17:50:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41778 to 17870. [2021-11-13 17:50:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17870 states, 17858 states have (on average 1.3247844103483033) internal successors, (23658), 17869 states have internal predecessors, (23658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 23658 transitions. [2021-11-13 17:50:59,315 INFO L78 Accepts]: Start accepts. Automaton has 17870 states and 23658 transitions. Word has length 85 [2021-11-13 17:50:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:59,315 INFO L470 AbstractCegarLoop]: Abstraction has 17870 states and 23658 transitions. [2021-11-13 17:50:59,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:50:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 17870 states and 23658 transitions. [2021-11-13 17:50:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-13 17:50:59,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:59,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:59,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 17:50:59,326 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:50:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1700859780, now seen corresponding path program 1 times [2021-11-13 17:50:59,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:50:59,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395759136] [2021-11-13 17:50:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:59,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:50:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:59,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:50:59,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395759136] [2021-11-13 17:50:59,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395759136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:59,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:59,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 17:50:59,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198971489] [2021-11-13 17:50:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:59,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:50:59,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:50:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:50:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:50:59,534 INFO L87 Difference]: Start difference. First operand 17870 states and 23658 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:11,382 INFO L93 Difference]: Finished difference Result 32921 states and 45832 transitions. [2021-11-13 17:51:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:51:11,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-13 17:51:11,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:11,422 INFO L225 Difference]: With dead ends: 32921 [2021-11-13 17:51:11,422 INFO L226 Difference]: Without dead ends: 25836 [2021-11-13 17:51:11,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:51:11,433 INFO L933 BasicCegarLoop]: 1742 mSDtfsCounter, 11537 mSDsluCounter, 7884 mSDsCounter, 0 mSdLazyCounter, 8547 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3470.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11537 SdHoareTripleChecker+Valid, 9626 SdHoareTripleChecker+Invalid, 8812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.76ms SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 8547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4278.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:11,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11537 Valid, 9626 Invalid, 8812 Unknown, 0 Unchecked, 53.76ms Time], IncrementalHoareTripleChecker [265 Valid, 8547 Invalid, 0 Unknown, 0 Unchecked, 4278.00ms Time] [2021-11-13 17:51:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25836 states. [2021-11-13 17:51:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25836 to 17879. [2021-11-13 17:51:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17879 states, 17867 states have (on average 1.324844685733475) internal successors, (23671), 17878 states have internal predecessors, (23671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:15,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17879 states to 17879 states and 23671 transitions. [2021-11-13 17:51:15,649 INFO L78 Accepts]: Start accepts. Automaton has 17879 states and 23671 transitions. Word has length 86 [2021-11-13 17:51:15,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:15,649 INFO L470 AbstractCegarLoop]: Abstraction has 17879 states and 23671 transitions. [2021-11-13 17:51:15,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:15,649 INFO L276 IsEmpty]: Start isEmpty. Operand 17879 states and 23671 transitions. [2021-11-13 17:51:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-13 17:51:15,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:15,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:15,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 17:51:15,659 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:51:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash -564790866, now seen corresponding path program 1 times [2021-11-13 17:51:15,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:15,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26744758] [2021-11-13 17:51:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:15,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:15,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:15,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26744758] [2021-11-13 17:51:15,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26744758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:15,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:15,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:51:15,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461345613] [2021-11-13 17:51:15,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:15,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:51:15,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:51:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:51:15,807 INFO L87 Difference]: Start difference. First operand 17879 states and 23671 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:26,036 INFO L93 Difference]: Finished difference Result 32406 states and 45319 transitions. [2021-11-13 17:51:26,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:51:26,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-13 17:51:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:26,078 INFO L225 Difference]: With dead ends: 32406 [2021-11-13 17:51:26,079 INFO L226 Difference]: Without dead ends: 25315 [2021-11-13 17:51:26,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:51:26,089 INFO L933 BasicCegarLoop]: 1748 mSDtfsCounter, 7840 mSDsluCounter, 5415 mSDsCounter, 0 mSdLazyCounter, 6110 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2517.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7840 SdHoareTripleChecker+Valid, 7163 SdHoareTripleChecker+Invalid, 6343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.30ms SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 6110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3212.27ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:26,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7840 Valid, 7163 Invalid, 6343 Unknown, 0 Unchecked, 35.30ms Time], IncrementalHoareTripleChecker [233 Valid, 6110 Invalid, 0 Unknown, 0 Unchecked, 3212.27ms Time] [2021-11-13 17:51:26,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25315 states. [2021-11-13 17:51:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25315 to 17870. [2021-11-13 17:51:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17870 states, 17858 states have (on average 1.3248404076604323) internal successors, (23659), 17869 states have internal predecessors, (23659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 23659 transitions. [2021-11-13 17:51:30,984 INFO L78 Accepts]: Start accepts. Automaton has 17870 states and 23659 transitions. Word has length 86 [2021-11-13 17:51:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:30,985 INFO L470 AbstractCegarLoop]: Abstraction has 17870 states and 23659 transitions. [2021-11-13 17:51:30,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17870 states and 23659 transitions. [2021-11-13 17:51:31,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-13 17:51:31,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:31,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:31,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 17:51:31,002 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:51:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:31,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1506846474, now seen corresponding path program 1 times [2021-11-13 17:51:31,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:31,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024566204] [2021-11-13 17:51:31,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:31,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:31,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:31,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024566204] [2021-11-13 17:51:31,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024566204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:31,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:31,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:51:31,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383966067] [2021-11-13 17:51:31,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:31,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:51:31,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:31,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:51:31,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:31,126 INFO L87 Difference]: Start difference. First operand 17870 states and 23659 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:40,460 INFO L93 Difference]: Finished difference Result 37116 states and 50817 transitions. [2021-11-13 17:51:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:51:40,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-13 17:51:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:40,509 INFO L225 Difference]: With dead ends: 37116 [2021-11-13 17:51:40,509 INFO L226 Difference]: Without dead ends: 27789 [2021-11-13 17:51:40,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:40,523 INFO L933 BasicCegarLoop]: 3232 mSDtfsCounter, 1995 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 5695 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.94ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.36ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:40,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 5695 Invalid, 97 Unknown, 0 Unchecked, 12.94ms Time], IncrementalHoareTripleChecker [38 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 126.36ms Time] [2021-11-13 17:51:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27789 states. [2021-11-13 17:51:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27789 to 27773. [2021-11-13 17:51:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27773 states, 27761 states have (on average 1.3423507798710421) internal successors, (37265), 27772 states have internal predecessors, (37265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27773 states to 27773 states and 37265 transitions. [2021-11-13 17:51:50,125 INFO L78 Accepts]: Start accepts. Automaton has 27773 states and 37265 transitions. Word has length 86 [2021-11-13 17:51:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:50,125 INFO L470 AbstractCegarLoop]: Abstraction has 27773 states and 37265 transitions. [2021-11-13 17:51:50,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:51:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 27773 states and 37265 transitions. [2021-11-13 17:51:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-13 17:51:50,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:50,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:50,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 17:51:50,142 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-13 17:51:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 502331132, now seen corresponding path program 1 times [2021-11-13 17:51:50,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:50,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735113039] [2021-11-13 17:51:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:50,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:50,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:50,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735113039] [2021-11-13 17:51:50,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735113039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:50,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:50,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:51:50,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380476145] [2021-11-13 17:51:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:50,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:51:50,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:51:50,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:51:50,711 INFO L87 Difference]: Start difference. First operand 27773 states and 37265 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)