./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:33:20,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:33:20,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:33:20,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:33:20,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:33:20,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:33:20,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:33:20,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:33:20,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:33:20,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:33:20,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:33:20,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:33:20,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:33:20,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:33:20,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:33:20,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:33:20,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:33:20,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:33:20,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:33:20,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:33:20,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:33:20,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:33:20,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:33:20,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:33:20,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:33:20,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:33:20,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:33:20,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:33:20,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:33:20,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:33:20,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:33:20,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:33:20,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:33:20,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:33:20,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:33:20,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:33:20,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:33:20,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:33:20,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:33:20,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:33:20,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:33:20,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-11-13 01:33:20,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:33:20,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:33:20,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:33:20,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:33:20,168 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:33:20,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:33:20,169 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:33:20,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:33:20,170 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:33:20,170 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:33:20,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:33:20,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:33:20,171 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:33:20,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:33:20,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:33:20,172 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:33:20,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:33:20,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:33:20,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:33:20,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:33:20,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:33:20,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:33:20,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:33:20,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:33:20,177 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:33:20,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:33:20,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:33:20,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:33:20,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:33:20,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:33:20,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:33:20,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:33:20,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:20,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:33:20,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:33:20,181 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:33:20,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:33:20,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:33:20,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:33:20,182 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb [2021-11-13 01:33:20,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:33:20,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:33:20,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:33:20,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:33:20,503 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:33:20,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/forester-heap/sll-buckets-2.i [2021-11-13 01:33:20,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/data/b8931d29c/312352a911aa4679b1f47eed7ea3119a/FLAGb95cb57af [2021-11-13 01:33:21,231 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:33:21,232 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i [2021-11-13 01:33:21,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/data/b8931d29c/312352a911aa4679b1f47eed7ea3119a/FLAGb95cb57af [2021-11-13 01:33:21,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/data/b8931d29c/312352a911aa4679b1f47eed7ea3119a [2021-11-13 01:33:21,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:33:21,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:33:21,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:21,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:33:21,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:33:21,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:21" (1/1) ... [2021-11-13 01:33:21,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b6ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:21, skipping insertion in model container [2021-11-13 01:33:21,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:21" (1/1) ... [2021-11-13 01:33:21,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:33:21,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:33:21,937 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22663,22676] [2021-11-13 01:33:21,942 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22734,22747] [2021-11-13 01:33:21,944 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22862,22875] [2021-11-13 01:33:21,949 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23275,23288] [2021-11-13 01:33:21,951 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23364,23377] [2021-11-13 01:33:21,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:21,974 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:33:22,049 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22663,22676] [2021-11-13 01:33:22,064 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22734,22747] [2021-11-13 01:33:22,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22862,22875] [2021-11-13 01:33:22,069 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23275,23288] [2021-11-13 01:33:22,074 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_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23364,23377] [2021-11-13 01:33:22,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:22,106 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:33:22,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22 WrapperNode [2021-11-13 01:33:22,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:22,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:22,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:33:22,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:33:22,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:22,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:33:22,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:33:22,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:33:22,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:33:22,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:33:22,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:33:22,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:33:22,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (1/1) ... [2021-11-13 01:33:22,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:33:22,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:33:22,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:33:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:33:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:33:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:33:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:33:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:33:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:33:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:33:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:33:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:33:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:33:23,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:33:23,061 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-13 01:33:23,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:23 BoogieIcfgContainer [2021-11-13 01:33:23,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:33:23,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:33:23,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:33:23,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:33:23,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:33:21" (1/3) ... [2021-11-13 01:33:23,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28554987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:23, skipping insertion in model container [2021-11-13 01:33:23,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:22" (2/3) ... [2021-11-13 01:33:23,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28554987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:23, skipping insertion in model container [2021-11-13 01:33:23,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:23" (3/3) ... [2021-11-13 01:33:23,076 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-buckets-2.i [2021-11-13 01:33:23,082 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:33:23,082 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2021-11-13 01:33:23,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:33:23,132 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 01:33:23,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2021-11-13 01:33:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 65 states have (on average 2.5076923076923077) internal successors, (163), 137 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 01:33:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-13 01:33:23,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:23,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-13 01:33:23,157 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:23,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash 10203, now seen corresponding path program 1 times [2021-11-13 01:33:23,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:23,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222651192] [2021-11-13 01:33:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:23,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:23,322 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 01:33:23,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:23,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222651192] [2021-11-13 01:33:23,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222651192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:23,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:23,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:33:23,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677098351] [2021-11-13 01:33:23,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:23,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:23,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:23,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:23,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:23,359 INFO L87 Difference]: Start difference. First operand has 138 states, 65 states have (on average 2.5076923076923077) internal successors, (163), 137 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states 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 01:33:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:23,548 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2021-11-13 01:33:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-13 01:33:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:23,583 INFO L225 Difference]: With dead ends: 169 [2021-11-13 01:33:23,583 INFO L226 Difference]: Without dead ends: 167 [2021-11-13 01:33:23,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 01:33:23,596 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 126 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.13ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.84ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:23,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 94 Invalid, 98 Unknown, 0 Unchecked, 26.13ms Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 131.84ms Time] [2021-11-13 01:33:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-13 01:33:23,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2021-11-13 01:33:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 65 states have (on average 2.1538461538461537) internal successors, (140), 132 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:23,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2021-11-13 01:33:23,640 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 2 [2021-11-13 01:33:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:23,640 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2021-11-13 01:33:23,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states 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 01:33:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2021-11-13 01:33:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-13 01:33:23,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:23,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-13 01:33:23,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:33:23,642 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 10204, now seen corresponding path program 1 times [2021-11-13 01:33:23,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:23,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908895441] [2021-11-13 01:33:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:23,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:23,688 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 01:33:23,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:23,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908895441] [2021-11-13 01:33:23,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908895441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:23,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:23,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:33:23,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215677812] [2021-11-13 01:33:23,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:23,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:23,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:23,693 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states 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 01:33:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:23,841 INFO L93 Difference]: Finished difference Result 166 states and 175 transitions. [2021-11-13 01:33:23,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:23,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-13 01:33:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:23,843 INFO L225 Difference]: With dead ends: 166 [2021-11-13 01:33:23,843 INFO L226 Difference]: Without dead ends: 166 [2021-11-13 01:33:23,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 01:33:23,845 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 60 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.63ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.11ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:23,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 158 Invalid, 93 Unknown, 0 Unchecked, 2.63ms Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 134.11ms Time] [2021-11-13 01:33:23,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-13 01:33:23,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 129. [2021-11-13 01:33:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 65 states have (on average 2.0923076923076924) internal successors, (136), 128 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2021-11-13 01:33:23,858 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 2 [2021-11-13 01:33:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:23,858 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 136 transitions. [2021-11-13 01:33:23,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states 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 01:33:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 136 transitions. [2021-11-13 01:33:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:33:23,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:23,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:33:23,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:33:23,859 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:23,860 INFO L85 PathProgramCache]: Analyzing trace with hash 841093034, now seen corresponding path program 1 times [2021-11-13 01:33:23,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:23,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751301601] [2021-11-13 01:33:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:23,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:23,984 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 01:33:23,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:23,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751301601] [2021-11-13 01:33:23,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751301601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:23,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:23,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:33:23,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569794273] [2021-11-13 01:33:23,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:23,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:33:23,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:33:23,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:23,987 INFO L87 Difference]: Start difference. First operand 129 states and 136 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 01:33:24,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:24,261 INFO L93 Difference]: Finished difference Result 134 states and 142 transitions. [2021-11-13 01:33:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:33:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:33:24,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:24,266 INFO L225 Difference]: With dead ends: 134 [2021-11-13 01:33:24,266 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 01:33:24,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:33:24,271 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 85 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.34ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 230.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:24,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 187 Invalid, 253 Unknown, 0 Unchecked, 4.34ms Time], IncrementalHoareTripleChecker [19 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 230.95ms Time] [2021-11-13 01:33:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 01:33:24,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 126. [2021-11-13 01:33:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 73 states have (on average 1.9315068493150684) internal successors, (141), 125 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 141 transitions. [2021-11-13 01:33:24,288 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 141 transitions. Word has length 6 [2021-11-13 01:33:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:24,292 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 141 transitions. [2021-11-13 01:33:24,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 01:33:24,293 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 141 transitions. [2021-11-13 01:33:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:33:24,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:24,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:33:24,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:33:24,294 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash 841093035, now seen corresponding path program 1 times [2021-11-13 01:33:24,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:24,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437542044] [2021-11-13 01:33:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:24,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:24,424 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 01:33:24,425 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:24,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437542044] [2021-11-13 01:33:24,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437542044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:24,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:24,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:33:24,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205332094] [2021-11-13 01:33:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:24,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:33:24,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:24,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:33:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:24,431 INFO L87 Difference]: Start difference. First operand 126 states and 141 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 01:33:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:24,631 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2021-11-13 01:33:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:33:24,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:33:24,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:24,633 INFO L225 Difference]: With dead ends: 122 [2021-11-13 01:33:24,633 INFO L226 Difference]: Without dead ends: 122 [2021-11-13 01:33:24,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:33:24,638 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 2 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.57ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.69ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:24,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 276 Invalid, 206 Unknown, 0 Unchecked, 3.57ms Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 176.69ms Time] [2021-11-13 01:33:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-13 01:33:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-13 01:33:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 73 states have (on average 1.8767123287671232) internal successors, (137), 121 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2021-11-13 01:33:24,656 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 6 [2021-11-13 01:33:24,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:24,656 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2021-11-13 01:33:24,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 01:33:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2021-11-13 01:33:24,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:33:24,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:24,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:24,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:33:24,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:24,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 777962111, now seen corresponding path program 1 times [2021-11-13 01:33:24,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:24,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796036769] [2021-11-13 01:33:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:24,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:24,773 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 01:33:24,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:24,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796036769] [2021-11-13 01:33:24,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796036769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:24,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:24,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:33:24,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732428485] [2021-11-13 01:33:24,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:24,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:33:24,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:24,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:33:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:24,779 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 01:33:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:24,984 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2021-11-13 01:33:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:33:24,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:33:24,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:24,990 INFO L225 Difference]: With dead ends: 129 [2021-11-13 01:33:24,990 INFO L226 Difference]: Without dead ends: 129 [2021-11-13 01:33:24,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:33:24,994 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 80 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.32ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:24,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 182 Invalid, 231 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 182.32ms Time] [2021-11-13 01:33:24,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-13 01:33:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 121. [2021-11-13 01:33:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 120 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2021-11-13 01:33:25,010 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 10 [2021-11-13 01:33:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2021-11-13 01:33:25,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 01:33:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2021-11-13 01:33:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:33:25,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:25,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:25,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 01:33:25,013 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:25,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 777962112, now seen corresponding path program 1 times [2021-11-13 01:33:25,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:25,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954711751] [2021-11-13 01:33:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:25,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:25,141 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 01:33:25,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:25,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954711751] [2021-11-13 01:33:25,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954711751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:25,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:25,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:33:25,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676468108] [2021-11-13 01:33:25,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:25,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:33:25,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:33:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:25,145 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 01:33:25,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:25,295 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2021-11-13 01:33:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:33:25,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:33:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:25,297 INFO L225 Difference]: With dead ends: 121 [2021-11-13 01:33:25,297 INFO L226 Difference]: Without dead ends: 121 [2021-11-13 01:33:25,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:25,298 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 5 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.42ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:25,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 265 Invalid, 199 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 144.42ms Time] [2021-11-13 01:33:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-13 01:33:25,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2021-11-13 01:33:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 73 states have (on average 1.821917808219178) internal successors, (133), 117 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 01:33:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 133 transitions. [2021-11-13 01:33:25,304 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 133 transitions. Word has length 10 [2021-11-13 01:33:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:25,304 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 133 transitions. [2021-11-13 01:33:25,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 01:33:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 133 transitions. [2021-11-13 01:33:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:33:25,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:25,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:25,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 01:33:25,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash 34701483, now seen corresponding path program 1 times [2021-11-13 01:33:25,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:25,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619494688] [2021-11-13 01:33:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:25,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:25,359 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 01:33:25,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:25,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619494688] [2021-11-13 01:33:25,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619494688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:25,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:25,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:33:25,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388750955] [2021-11-13 01:33:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:25,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:25,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:25,361 INFO L87 Difference]: Start difference. First operand 118 states and 133 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 01:33:25,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:25,439 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2021-11-13 01:33:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:25,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-13 01:33:25,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:25,441 INFO L225 Difference]: With dead ends: 122 [2021-11-13 01:33:25,441 INFO L226 Difference]: Without dead ends: 122 [2021-11-13 01:33:25,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:33:25,442 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.43ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:25,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 104 Invalid, 81 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 73.43ms Time] [2021-11-13 01:33:25,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-13 01:33:25,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2021-11-13 01:33:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.7534246575342465) internal successors, (128), 112 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 01:33:25,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2021-11-13 01:33:25,447 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 15 [2021-11-13 01:33:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:25,448 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2021-11-13 01:33:25,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 01:33:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2021-11-13 01:33:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:33:25,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:25,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:25,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 01:33:25,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:25,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash 34701484, now seen corresponding path program 1 times [2021-11-13 01:33:25,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:25,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150248367] [2021-11-13 01:33:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:25,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:25,492 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 01:33:25,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:25,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150248367] [2021-11-13 01:33:25,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150248367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:25,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:25,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:33:25,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215997532] [2021-11-13 01:33:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:25,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:25,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:25,495 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 01:33:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:25,582 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2021-11-13 01:33:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:25,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-13 01:33:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:25,585 INFO L225 Difference]: With dead ends: 117 [2021-11-13 01:33:25,585 INFO L226 Difference]: Without dead ends: 117 [2021-11-13 01:33:25,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:33:25,594 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.02ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:25,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 105 Invalid, 75 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 83.02ms Time] [2021-11-13 01:33:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-13 01:33:25,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2021-11-13 01:33:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 107 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 01:33:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2021-11-13 01:33:25,599 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 15 [2021-11-13 01:33:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:25,599 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2021-11-13 01:33:25,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 01:33:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2021-11-13 01:33:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 01:33:25,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:25,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:25,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 01:33:25,601 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1011530333, now seen corresponding path program 1 times [2021-11-13 01:33:25,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:25,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000036568] [2021-11-13 01:33:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:25,687 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 01:33:25,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:25,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000036568] [2021-11-13 01:33:25,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000036568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:25,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:25,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:33:25,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699680080] [2021-11-13 01:33:25,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:25,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:25,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:25,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:25,690 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:25,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:25,800 INFO L93 Difference]: Finished difference Result 189 states and 220 transitions. [2021-11-13 01:33:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:33:25,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-13 01:33:25,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:25,802 INFO L225 Difference]: With dead ends: 189 [2021-11-13 01:33:25,802 INFO L226 Difference]: Without dead ends: 189 [2021-11-13 01:33:25,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:25,803 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 192 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.97ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:25,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 152 Invalid, 113 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 98.97ms Time] [2021-11-13 01:33:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-13 01:33:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 111. [2021-11-13 01:33:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 77 states have (on average 1.6753246753246753) internal successors, (129), 110 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 01:33:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2021-11-13 01:33:25,808 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 17 [2021-11-13 01:33:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:25,808 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2021-11-13 01:33:25,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2021-11-13 01:33:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 01:33:25,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:25,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:25,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 01:33:25,810 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr51REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:25,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1011533735, now seen corresponding path program 1 times [2021-11-13 01:33:25,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:25,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562062732] [2021-11-13 01:33:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:25,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:25,883 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 01:33:25,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:25,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562062732] [2021-11-13 01:33:25,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562062732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:25,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:25,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:33:25,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484171740] [2021-11-13 01:33:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:25,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:25,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:25,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:25,886 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:26,012 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2021-11-13 01:33:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:33:26,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-13 01:33:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:26,014 INFO L225 Difference]: With dead ends: 153 [2021-11-13 01:33:26,014 INFO L226 Difference]: Without dead ends: 153 [2021-11-13 01:33:26,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:26,015 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 181 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.58ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:26,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 81 Invalid, 140 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [20 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 114.58ms Time] [2021-11-13 01:33:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-13 01:33:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 115. [2021-11-13 01:33:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 81 states have (on average 1.6666666666666667) internal successors, (135), 114 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2021-11-13 01:33:26,019 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 17 [2021-11-13 01:33:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:26,019 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2021-11-13 01:33:26,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2021-11-13 01:33:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 01:33:26,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:26,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:26,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 01:33:26,021 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1011533734, now seen corresponding path program 1 times [2021-11-13 01:33:26,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:26,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328861602] [2021-11-13 01:33:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:26,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:26,163 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:26,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328861602] [2021-11-13 01:33:26,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328861602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:26,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:26,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:33:26,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169759006] [2021-11-13 01:33:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:26,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:33:26,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:26,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:33:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:33:26,166 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:26,322 INFO L93 Difference]: Finished difference Result 163 states and 192 transitions. [2021-11-13 01:33:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:33:26,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-13 01:33:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:26,325 INFO L225 Difference]: With dead ends: 163 [2021-11-13 01:33:26,325 INFO L226 Difference]: Without dead ends: 163 [2021-11-13 01:33:26,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:33:26,326 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 138 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.02ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.08ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:26,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 157 Invalid, 166 Unknown, 0 Unchecked, 3.02ms Time], IncrementalHoareTripleChecker [13 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 129.08ms Time] [2021-11-13 01:33:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-13 01:33:26,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 144. [2021-11-13 01:33:26,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 110 states have (on average 1.6636363636363636) internal successors, (183), 143 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 01:33:26,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 183 transitions. [2021-11-13 01:33:26,331 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 183 transitions. Word has length 17 [2021-11-13 01:33:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:26,332 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 183 transitions. [2021-11-13 01:33:26,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states 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 01:33:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 183 transitions. [2021-11-13 01:33:26,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 01:33:26,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:26,333 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] [2021-11-13 01:33:26,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 01:33:26,333 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:26,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1108004965, now seen corresponding path program 1 times [2021-11-13 01:33:26,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:26,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219785023] [2021-11-13 01:33:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:26,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:26,806 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 01:33:26,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:26,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219785023] [2021-11-13 01:33:26,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219785023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:26,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:26,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 01:33:26,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940471487] [2021-11-13 01:33:26,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:26,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 01:33:26,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:26,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 01:33:26,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:33:26,809 INFO L87 Difference]: Start difference. First operand 144 states and 183 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 01:33:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:27,397 INFO L93 Difference]: Finished difference Result 159 states and 181 transitions. [2021-11-13 01:33:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 01:33:27,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-13 01:33:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:27,399 INFO L225 Difference]: With dead ends: 159 [2021-11-13 01:33:27,399 INFO L226 Difference]: Without dead ends: 159 [2021-11-13 01:33:27,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2021-11-13 01:33:27,400 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 308.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.69ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 368.87ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:27,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 350 Invalid, 470 Unknown, 0 Unchecked, 3.69ms Time], IncrementalHoareTripleChecker [73 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 368.87ms Time] [2021-11-13 01:33:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-13 01:33:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 125. [2021-11-13 01:33:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 92 states have (on average 1.576086956521739) internal successors, (145), 124 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2021-11-13 01:33:27,405 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 20 [2021-11-13 01:33:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:27,405 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2021-11-13 01:33:27,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 01:33:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2021-11-13 01:33:27,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 01:33:27,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:27,406 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] [2021-11-13 01:33:27,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 01:33:27,406 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:27,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2124656332, now seen corresponding path program 1 times [2021-11-13 01:33:27,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:27,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501548354] [2021-11-13 01:33:27,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:27,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:27,439 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 01:33:27,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:27,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501548354] [2021-11-13 01:33:27,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501548354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:27,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:27,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:33:27,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539128579] [2021-11-13 01:33:27,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:27,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:27,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:27,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:27,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:27,441 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 01:33:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:27,486 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2021-11-13 01:33:27,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:27,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-13 01:33:27,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:27,487 INFO L225 Difference]: With dead ends: 124 [2021-11-13 01:33:27,488 INFO L226 Difference]: Without dead ends: 124 [2021-11-13 01:33:27,488 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 01:33:27,489 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 43 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.96ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:27,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 122 Invalid, 43 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 40.96ms Time] [2021-11-13 01:33:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-13 01:33:27,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2021-11-13 01:33:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.5714285714285714) internal successors, (143), 122 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:33:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2021-11-13 01:33:27,493 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 22 [2021-11-13 01:33:27,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:27,493 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2021-11-13 01:33:27,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 01:33:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2021-11-13 01:33:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 01:33:27,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:27,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:27,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 01:33:27,495 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:27,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1439832673, now seen corresponding path program 1 times [2021-11-13 01:33:27,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:27,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685788488] [2021-11-13 01:33:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:27,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:27,607 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 01:33:27,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:27,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685788488] [2021-11-13 01:33:27,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685788488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:27,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:27,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 01:33:27,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407600237] [2021-11-13 01:33:27,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:27,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:33:27,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:33:27,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:33:27,610 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 01:33:27,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:27,900 INFO L93 Difference]: Finished difference Result 197 states and 221 transitions. [2021-11-13 01:33:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:33:27,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-13 01:33:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:27,902 INFO L225 Difference]: With dead ends: 197 [2021-11-13 01:33:27,902 INFO L226 Difference]: Without dead ends: 197 [2021-11-13 01:33:27,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:33:27,903 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 266 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 190.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.70ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 237.96ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:27,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 175 Invalid, 321 Unknown, 0 Unchecked, 2.70ms Time], IncrementalHoareTripleChecker [27 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 237.96ms Time] [2021-11-13 01:33:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-13 01:33:27,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 148. [2021-11-13 01:33:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 116 states have (on average 1.5775862068965518) internal successors, (183), 147 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 01:33:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 183 transitions. [2021-11-13 01:33:27,907 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 183 transitions. Word has length 23 [2021-11-13 01:33:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:27,908 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 183 transitions. [2021-11-13 01:33:27,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 01:33:27,908 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 183 transitions. [2021-11-13 01:33:27,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 01:33:27,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:27,909 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] [2021-11-13 01:33:27,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 01:33:27,909 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:27,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1282702039, now seen corresponding path program 1 times [2021-11-13 01:33:27,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:27,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641253733] [2021-11-13 01:33:27,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:27,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:27,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641253733] [2021-11-13 01:33:27,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641253733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:27,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:27,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:33:27,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432400033] [2021-11-13 01:33:27,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:27,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:27,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:27,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:27,957 INFO L87 Difference]: Start difference. First operand 148 states and 183 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 01:33:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:28,071 INFO L93 Difference]: Finished difference Result 181 states and 210 transitions. [2021-11-13 01:33:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:33:28,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-13 01:33:28,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:28,073 INFO L225 Difference]: With dead ends: 181 [2021-11-13 01:33:28,073 INFO L226 Difference]: Without dead ends: 181 [2021-11-13 01:33:28,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:33:28,074 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 153 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.41ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.46ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:28,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 166 Invalid, 106 Unknown, 0 Unchecked, 1.41ms Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 101.46ms Time] [2021-11-13 01:33:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-13 01:33:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 150. [2021-11-13 01:33:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 118 states have (on average 1.5677966101694916) internal successors, (185), 149 states have internal predecessors, (185), 0 states have call successors, (0), 0 states 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 01:33:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 185 transitions. [2021-11-13 01:33:28,079 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 185 transitions. Word has length 25 [2021-11-13 01:33:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:28,079 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 185 transitions. [2021-11-13 01:33:28,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 01:33:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 185 transitions. [2021-11-13 01:33:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:33:28,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:28,080 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] [2021-11-13 01:33:28,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 01:33:28,080 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 68 more)] === [2021-11-13 01:33:28,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:28,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1871700982, now seen corresponding path program 1 times [2021-11-13 01:33:28,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:28,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445978725] [2021-11-13 01:33:28,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:28,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:28,583 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:28,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445978725] [2021-11-13 01:33:28,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445978725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:33:28,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929524751] [2021-11-13 01:33:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:28,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:33:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:33:28,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:33:28,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c22c0f-5f0b-4066-ae79-7f26caebed2d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:33:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:28,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-13 01:33:28,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:28,763 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-13 01:33:28,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-13 01:33:29,205 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-11-13 01:33:29,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 62 [2021-11-13 01:33:29,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 01:33:29,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-13 01:33:29,378 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 01:33:29,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-13 01:33:29,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-13 01:33:29,472 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-13 01:33:29,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-11-13 01:33:29,670 INFO L354 Elim1Store]: treesize reduction 124, result has 26.2 percent of original size [2021-11-13 01:33:29,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 71 [2021-11-13 01:33:29,866 INFO L354 Elim1Store]: treesize reduction 88, result has 23.5 percent of original size [2021-11-13 01:33:29,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 81 [2021-11-13 01:33:30,131 INFO L354 Elim1Store]: treesize reduction 172, result has 19.2 percent of original size [2021-11-13 01:33:30,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 112 treesize of output 107 [2021-11-13 01:33:36,285 INFO L354 Elim1Store]: treesize reduction 110, result has 38.2 percent of original size [2021-11-13 01:33:36,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 145 treesize of output 191 [2021-11-13 01:33:37,122 INFO L354 Elim1Store]: treesize reduction 630, result has 11.6 percent of original size [2021-11-13 01:33:37,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 44 case distinctions, treesize of input 195 treesize of output 166