./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 06:14:58,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:14:58,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:14:58,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:14:58,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:14:58,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:14:58,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:14:58,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:14:58,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:14:58,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:14:58,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:14:58,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:14:58,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:14:58,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:14:58,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:14:58,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:14:58,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:14:58,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:14:58,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:14:58,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:14:58,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:14:58,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:14:58,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:14:58,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:14:58,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:14:58,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:14:58,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:14:58,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:14:58,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:14:58,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:14:58,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:14:58,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:14:58,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:14:58,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:14:58,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:14:58,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:14:58,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:14:58,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:14:58,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:14:58,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:14:58,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:14:58,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-20 06:14:58,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:14:58,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:14:58,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:14:58,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:14:58,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:14:58,371 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:14:58,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 06:14:58,371 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:14:58,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:14:58,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 06:14:58,373 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 06:14:58,373 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:14:58,374 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 06:14:58,374 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 06:14:58,374 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 06:14:58,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 06:14:58,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 06:14:58,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:14:58,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:14:58,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 06:14:58,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:14:58,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:14:58,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:14:58,377 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 06:14:58,377 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 06:14:58,377 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 06:14:58,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:14:58,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 06:14:58,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:14:58,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:14:58,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:14:58,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:14:58,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:14:58,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:14:58,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:14:58,379 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 06:14:58,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 06:14:58,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:14:58,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:14:58,380 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2021-10-20 06:14:58,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:14:58,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:14:58,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:14:58,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:14:58,669 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:14:58,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-20 06:14:58,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/27a630153/8f8067e7028c4000820d67134030e80c/FLAGbc9d5b7c7 [2021-10-20 06:14:59,214 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:14:59,214 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-20 06:14:59,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/27a630153/8f8067e7028c4000820d67134030e80c/FLAGbc9d5b7c7 [2021-10-20 06:14:59,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/27a630153/8f8067e7028c4000820d67134030e80c [2021-10-20 06:14:59,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:14:59,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:14:59,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:14:59,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:14:59,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:14:59,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:14:59" (1/1) ... [2021-10-20 06:14:59,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61815b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:14:59, skipping insertion in model container [2021-10-20 06:14:59,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:14:59" (1/1) ... [2021-10-20 06:14:59,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:14:59,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:14:59,914 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-20 06:14:59,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:14:59,926 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:14:59,997 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-20 06:14:59,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:15:00,021 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:15:00,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00 WrapperNode [2021-10-20 06:15:00,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:15:00,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:15:00,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:15:00,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:15:00,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:15:00,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:15:00,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:15:00,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:15:00,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:15:00,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:15:00,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:15:00,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:15:00,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (1/1) ... [2021-10-20 06:15:00,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:15:00,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:15:00,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:15:00,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:15:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:15:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 06:15:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:15:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:15:00,518 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,526 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,538 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,565 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,571 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,577 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,602 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,610 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,636 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,658 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,664 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:00,695 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:01,593 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-20 06:15:01,594 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-20 06:15:01,595 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-20 06:15:01,595 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-20 06:15:01,595 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2021-10-20 06:15:01,595 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2021-10-20 06:15:01,595 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-20 06:15:01,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-20 06:15:01,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2021-10-20 06:15:01,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2021-10-20 06:15:01,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-20 06:15:01,596 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2021-10-20 06:15:01,597 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2021-10-20 06:15:01,598 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2021-10-20 06:15:01,598 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2021-10-20 06:15:01,598 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-20 06:15:01,598 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-20 06:15:01,599 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2021-10-20 06:15:01,599 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2021-10-20 06:15:02,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:15:02,396 INFO L299 CfgBuilder]: Removed 154 assume(true) statements. [2021-10-20 06:15:02,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:02 BoogieIcfgContainer [2021-10-20 06:15:02,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:15:02,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:15:02,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:15:02,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:15:02,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:14:59" (1/3) ... [2021-10-20 06:15:02,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c39ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:15:02, skipping insertion in model container [2021-10-20 06:15:02,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:00" (2/3) ... [2021-10-20 06:15:02,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c39ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:15:02, skipping insertion in model container [2021-10-20 06:15:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:02" (3/3) ... [2021-10-20 06:15:02,412 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-10-20 06:15:02,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:15:02,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-10-20 06:15:02,467 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:15:02,474 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 [2021-10-20 06:15:02,474 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-20 06:15:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 171 states have (on average 1.7894736842105263) internal successors, (306), 202 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 06:15:02,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:02,502 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 06:15:02,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:02,508 INFO L82 PathProgramCache]: Analyzing trace with hash 40781817, now seen corresponding path program 1 times [2021-10-20 06:15:02,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:02,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516176572] [2021-10-20 06:15:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:02,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:02,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:02,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516176572] [2021-10-20 06:15:02,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516176572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:02,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:02,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 06:15:02,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210739666] [2021-10-20 06:15:02,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:02,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:02,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:02,712 INFO L87 Difference]: Start difference. First operand has 203 states, 171 states have (on average 1.7894736842105263) internal successors, (306), 202 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:02,769 INFO L93 Difference]: Finished difference Result 206 states and 273 transitions. [2021-10-20 06:15:02,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:02,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-20 06:15:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:02,782 INFO L225 Difference]: With dead ends: 206 [2021-10-20 06:15:02,782 INFO L226 Difference]: Without dead ends: 204 [2021-10-20 06:15:02,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-20 06:15:02,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-10-20 06:15:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 171 states have (on average 1.5789473684210527) internal successors, (270), 201 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions. [2021-10-20 06:15:02,831 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 4 [2021-10-20 06:15:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:02,832 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions. [2021-10-20 06:15:02,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,832 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions. [2021-10-20 06:15:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-20 06:15:02,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:02,833 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:02,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 06:15:02,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:02,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:02,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1512371092, now seen corresponding path program 1 times [2021-10-20 06:15:02,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:02,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7249299] [2021-10-20 06:15:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:02,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:02,911 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:02,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7249299] [2021-10-20 06:15:02,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7249299] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:02,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:02,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-20 06:15:02,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035166130] [2021-10-20 06:15:02,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:02,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:02,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:02,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:02,916 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:02,928 INFO L93 Difference]: Finished difference Result 201 states and 269 transitions. [2021-10-20 06:15:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:02,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-20 06:15:02,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:02,932 INFO L225 Difference]: With dead ends: 201 [2021-10-20 06:15:02,932 INFO L226 Difference]: Without dead ends: 199 [2021-10-20 06:15:02,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:02,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-20 06:15:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-10-20 06:15:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 169 states have (on average 1.532544378698225) internal successors, (259), 198 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2021-10-20 06:15:02,950 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 9 [2021-10-20 06:15:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:02,950 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2021-10-20 06:15:02,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2021-10-20 06:15:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-20 06:15:02,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:02,952 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:02,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-20 06:15:02,953 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:02,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:02,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1513664685, now seen corresponding path program 1 times [2021-10-20 06:15:02,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:02,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889210358] [2021-10-20 06:15:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:02,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,010 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889210358] [2021-10-20 06:15:03,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889210358] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103035520] [2021-10-20 06:15:03,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,014 INFO L87 Difference]: Start difference. First operand 199 states and 259 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,134 INFO L93 Difference]: Finished difference Result 184 states and 244 transitions. [2021-10-20 06:15:03,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-20 06:15:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,140 INFO L225 Difference]: With dead ends: 184 [2021-10-20 06:15:03,140 INFO L226 Difference]: Without dead ends: 184 [2021-10-20 06:15:03,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-20 06:15:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-10-20 06:15:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.4878048780487805) internal successors, (244), 183 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 244 transitions. [2021-10-20 06:15:03,174 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 244 transitions. Word has length 9 [2021-10-20 06:15:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,175 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 244 transitions. [2021-10-20 06:15:03,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 244 transitions. [2021-10-20 06:15:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 06:15:03,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-20 06:15:03,178 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,181 INFO L82 PathProgramCache]: Analyzing trace with hash 860871200, now seen corresponding path program 1 times [2021-10-20 06:15:03,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611312353] [2021-10-20 06:15:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611312353] [2021-10-20 06:15:03,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611312353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485632867] [2021-10-20 06:15:03,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,284 INFO L87 Difference]: Start difference. First operand 184 states and 244 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-20 06:15:03,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,318 INFO L93 Difference]: Finished difference Result 190 states and 243 transitions. [2021-10-20 06:15:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2021-10-20 06:15:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,321 INFO L225 Difference]: With dead ends: 190 [2021-10-20 06:15:03,321 INFO L226 Difference]: Without dead ends: 190 [2021-10-20 06:15:03,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-20 06:15:03,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 154. [2021-10-20 06:15:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 142 states have (on average 1.408450704225352) internal successors, (200), 153 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2021-10-20 06:15:03,342 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 10 [2021-10-20 06:15:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,344 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2021-10-20 06:15:03,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-20 06:15:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2021-10-20 06:15:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 06:15:03,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,347 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-20 06:15:03,348 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,349 INFO L82 PathProgramCache]: Analyzing trace with hash 890449964, now seen corresponding path program 1 times [2021-10-20 06:15:03,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708523503] [2021-10-20 06:15:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,451 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708523503] [2021-10-20 06:15:03,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708523503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793316981] [2021-10-20 06:15:03,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,457 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 3 states, 3 states have (on average 5.0) 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) [2021-10-20 06:15:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,541 INFO L93 Difference]: Finished difference Result 140 states and 186 transitions. [2021-10-20 06:15:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) 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 [2021-10-20 06:15:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,548 INFO L225 Difference]: With dead ends: 140 [2021-10-20 06:15:03,549 INFO L226 Difference]: Without dead ends: 140 [2021-10-20 06:15:03,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-20 06:15:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-10-20 06:15:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.3777777777777778) internal successors, (186), 139 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 186 transitions. [2021-10-20 06:15:03,556 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 186 transitions. Word has length 15 [2021-10-20 06:15:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,556 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 186 transitions. [2021-10-20 06:15:03,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) 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) [2021-10-20 06:15:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 186 transitions. [2021-10-20 06:15:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 06:15:03,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,563 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-20 06:15:03,564 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1337662071, now seen corresponding path program 1 times [2021-10-20 06:15:03,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876146656] [2021-10-20 06:15:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876146656] [2021-10-20 06:15:03,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876146656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972417572] [2021-10-20 06:15:03,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,659 INFO L87 Difference]: Start difference. First operand 140 states and 186 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,675 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2021-10-20 06:15:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 06:15:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,677 INFO L225 Difference]: With dead ends: 158 [2021-10-20 06:15:03,677 INFO L226 Difference]: Without dead ends: 158 [2021-10-20 06:15:03,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-20 06:15:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 140. [2021-10-20 06:15:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.3703703703703705) internal successors, (185), 139 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) [2021-10-20 06:15:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 185 transitions. [2021-10-20 06:15:03,683 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 185 transitions. Word has length 18 [2021-10-20 06:15:03,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,683 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 185 transitions. [2021-10-20 06:15:03,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 185 transitions. [2021-10-20 06:15:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 06:15:03,685 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-20 06:15:03,686 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1961679802, now seen corresponding path program 1 times [2021-10-20 06:15:03,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585381174] [2021-10-20 06:15:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,762 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585381174] [2021-10-20 06:15:03,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585381174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785578054] [2021-10-20 06:15:03,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,765 INFO L87 Difference]: Start difference. First operand 140 states and 185 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,860 INFO L93 Difference]: Finished difference Result 137 states and 181 transitions. [2021-10-20 06:15:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 06:15:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,861 INFO L225 Difference]: With dead ends: 137 [2021-10-20 06:15:03,862 INFO L226 Difference]: Without dead ends: 137 [2021-10-20 06:15:03,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-20 06:15:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-20 06:15:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 136 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2021-10-20 06:15:03,866 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 18 [2021-10-20 06:15:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,867 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2021-10-20 06:15:03,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2021-10-20 06:15:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 06:15:03,868 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,868 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-20 06:15:03,869 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,870 INFO L82 PathProgramCache]: Analyzing trace with hash 192413782, now seen corresponding path program 1 times [2021-10-20 06:15:03,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079330710] [2021-10-20 06:15:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:03,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:03,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079330710] [2021-10-20 06:15:03,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079330710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:03,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:03,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:03,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368510891] [2021-10-20 06:15:03,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:03,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,948 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:03,959 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2021-10-20 06:15:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:03,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-20 06:15:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:03,962 INFO L225 Difference]: With dead ends: 153 [2021-10-20 06:15:03,962 INFO L226 Difference]: Without dead ends: 153 [2021-10-20 06:15:03,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-20 06:15:03,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 135. [2021-10-20 06:15:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 134 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2021-10-20 06:15:03,968 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 19 [2021-10-20 06:15:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:03,968 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2021-10-20 06:15:03,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2021-10-20 06:15:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-20 06:15:03,969 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:03,970 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:03,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-20 06:15:03,971 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:03,971 INFO L82 PathProgramCache]: Analyzing trace with hash 408419059, now seen corresponding path program 1 times [2021-10-20 06:15:03,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:03,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284895068] [2021-10-20 06:15:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:03,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284895068] [2021-10-20 06:15:04,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284895068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734041840] [2021-10-20 06:15:04,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:04,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:04,048 INFO L87 Difference]: Start difference. First operand 135 states and 178 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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) [2021-10-20 06:15:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,153 INFO L93 Difference]: Finished difference Result 135 states and 177 transitions. [2021-10-20 06:15:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:04,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 [2021-10-20 06:15:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,154 INFO L225 Difference]: With dead ends: 135 [2021-10-20 06:15:04,154 INFO L226 Difference]: Without dead ends: 135 [2021-10-20 06:15:04,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-20 06:15:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-20 06:15:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.3511450381679388) internal successors, (177), 134 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions. [2021-10-20 06:15:04,159 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 20 [2021-10-20 06:15:04,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,159 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions. [2021-10-20 06:15:04,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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) [2021-10-20 06:15:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2021-10-20 06:15:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 06:15:04,160 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,160 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-20 06:15:04,162 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1830156984, now seen corresponding path program 1 times [2021-10-20 06:15:04,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56426466] [2021-10-20 06:15:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56426466] [2021-10-20 06:15:04,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56426466] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310785874] [2021-10-20 06:15:04,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:04,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:04,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,199 INFO L87 Difference]: Start difference. First operand 135 states and 177 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,208 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2021-10-20 06:15:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:04,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-20 06:15:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,210 INFO L225 Difference]: With dead ends: 130 [2021-10-20 06:15:04,210 INFO L226 Difference]: Without dead ends: 130 [2021-10-20 06:15:04,210 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-20 06:15:04,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-20 06:15:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 129 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2021-10-20 06:15:04,214 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 21 [2021-10-20 06:15:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,214 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2021-10-20 06:15:04,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2021-10-20 06:15:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 06:15:04,215 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,215 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-20 06:15:04,216 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1043976817, now seen corresponding path program 1 times [2021-10-20 06:15:04,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189560964] [2021-10-20 06:15:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189560964] [2021-10-20 06:15:04,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189560964] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-20 06:15:04,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809250319] [2021-10-20 06:15:04,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:15:04,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:15:04,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:04,293 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,461 INFO L93 Difference]: Finished difference Result 152 states and 193 transitions. [2021-10-20 06:15:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:04,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-20 06:15:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,462 INFO L225 Difference]: With dead ends: 152 [2021-10-20 06:15:04,462 INFO L226 Difference]: Without dead ends: 152 [2021-10-20 06:15:04,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-20 06:15:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 130. [2021-10-20 06:15:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 129 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2021-10-20 06:15:04,466 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 21 [2021-10-20 06:15:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,466 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2021-10-20 06:15:04,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2021-10-20 06:15:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 06:15:04,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-20 06:15:04,468 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash -899913052, now seen corresponding path program 1 times [2021-10-20 06:15:04,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391642747] [2021-10-20 06:15:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391642747] [2021-10-20 06:15:04,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391642747] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-20 06:15:04,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132430972] [2021-10-20 06:15:04,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:04,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:04,511 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2021-10-20 06:15:04,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,573 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2021-10-20 06:15:04,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:04,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 [2021-10-20 06:15:04,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,575 INFO L225 Difference]: With dead ends: 140 [2021-10-20 06:15:04,575 INFO L226 Difference]: Without dead ends: 122 [2021-10-20 06:15:04,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-20 06:15:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-20 06:15:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 119 states have (on average 1.3361344537815125) internal successors, (159), 121 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2021-10-20 06:15:04,579 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 159 transitions. Word has length 22 [2021-10-20 06:15:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,579 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-10-20 06:15:04,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2021-10-20 06:15:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 159 transitions. [2021-10-20 06:15:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 06:15:04,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,580 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-20 06:15:04,581 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1927773491, now seen corresponding path program 1 times [2021-10-20 06:15:04,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039813947] [2021-10-20 06:15:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039813947] [2021-10-20 06:15:04,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039813947] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499323676] [2021-10-20 06:15:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:04,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,613 INFO L87 Difference]: Start difference. First operand 122 states and 159 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) [2021-10-20 06:15:04,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,668 INFO L93 Difference]: Finished difference Result 124 states and 162 transitions. [2021-10-20 06:15:04,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:04,669 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 [2021-10-20 06:15:04,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,670 INFO L225 Difference]: With dead ends: 124 [2021-10-20 06:15:04,670 INFO L226 Difference]: Without dead ends: 124 [2021-10-20 06:15:04,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-20 06:15:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-10-20 06:15:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 121 states have (on average 1.3388429752066116) internal successors, (162), 123 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2021-10-20 06:15:04,674 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 22 [2021-10-20 06:15:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,675 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2021-10-20 06:15:04,675 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) [2021-10-20 06:15:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2021-10-20 06:15:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 06:15:04,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-20 06:15:04,676 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,677 INFO L82 PathProgramCache]: Analyzing trace with hash -980806915, now seen corresponding path program 1 times [2021-10-20 06:15:04,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39807558] [2021-10-20 06:15:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39807558] [2021-10-20 06:15:04,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39807558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184711389] [2021-10-20 06:15:04,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:04,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:04,712 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand has 4 states, 4 states have (on average 5.5) 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) [2021-10-20 06:15:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,794 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2021-10-20 06:15:04,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:04,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) 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 [2021-10-20 06:15:04,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,796 INFO L225 Difference]: With dead ends: 144 [2021-10-20 06:15:04,796 INFO L226 Difference]: Without dead ends: 144 [2021-10-20 06:15:04,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-20 06:15:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2021-10-20 06:15:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.3059701492537314) internal successors, (175), 136 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 175 transitions. [2021-10-20 06:15:04,800 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 175 transitions. Word has length 22 [2021-10-20 06:15:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,801 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 175 transitions. [2021-10-20 06:15:04,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) 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) [2021-10-20 06:15:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 175 transitions. [2021-10-20 06:15:04,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:15:04,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,802 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-20 06:15:04,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1760158127, now seen corresponding path program 1 times [2021-10-20 06:15:04,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107757902] [2021-10-20 06:15:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107757902] [2021-10-20 06:15:04,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107757902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340494063] [2021-10-20 06:15:04,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:04,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,833 INFO L87 Difference]: Start difference. First operand 137 states and 175 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2021-10-20 06:15:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,892 INFO L93 Difference]: Finished difference Result 148 states and 187 transitions. [2021-10-20 06:15:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:04,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 [2021-10-20 06:15:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,894 INFO L225 Difference]: With dead ends: 148 [2021-10-20 06:15:04,894 INFO L226 Difference]: Without dead ends: 131 [2021-10-20 06:15:04,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-20 06:15:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-20 06:15:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.265625) internal successors, (162), 130 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2021-10-20 06:15:04,898 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 23 [2021-10-20 06:15:04,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,899 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2021-10-20 06:15:04,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2021-10-20 06:15:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2021-10-20 06:15:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:15:04,900 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,900 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-20 06:15:04,900 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash -376222640, now seen corresponding path program 1 times [2021-10-20 06:15:04,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079600859] [2021-10-20 06:15:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079600859] [2021-10-20 06:15:04,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079600859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19260734] [2021-10-20 06:15:04,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:04,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:04,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,932 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2021-10-20 06:15:04,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:04,938 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2021-10-20 06:15:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:04,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 [2021-10-20 06:15:04,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:04,939 INFO L225 Difference]: With dead ends: 127 [2021-10-20 06:15:04,940 INFO L226 Difference]: Without dead ends: 126 [2021-10-20 06:15:04,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-20 06:15:04,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-20 06:15:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 125 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2021-10-20 06:15:04,944 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 23 [2021-10-20 06:15:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:04,944 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2021-10-20 06:15:04,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2021-10-20 06:15:04,944 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2021-10-20 06:15:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:15:04,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:04,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:04,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-20 06:15:04,946 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:04,946 INFO L82 PathProgramCache]: Analyzing trace with hash -730298560, now seen corresponding path program 1 times [2021-10-20 06:15:04,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:04,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409754389] [2021-10-20 06:15:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:04,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:04,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:04,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409754389] [2021-10-20 06:15:04,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409754389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:04,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:04,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:04,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689002822] [2021-10-20 06:15:04,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:04,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:04,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:04,980 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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) [2021-10-20 06:15:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:05,055 INFO L93 Difference]: Finished difference Result 113 states and 137 transitions. [2021-10-20 06:15:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:05,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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 [2021-10-20 06:15:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:05,057 INFO L225 Difference]: With dead ends: 113 [2021-10-20 06:15:05,057 INFO L226 Difference]: Without dead ends: 113 [2021-10-20 06:15:05,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-20 06:15:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-20 06:15:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 112 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) [2021-10-20 06:15:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 137 transitions. [2021-10-20 06:15:05,060 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 137 transitions. Word has length 23 [2021-10-20 06:15:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:05,061 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 137 transitions. [2021-10-20 06:15:05,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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) [2021-10-20 06:15:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 137 transitions. [2021-10-20 06:15:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 06:15:05,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:05,062 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:05,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-20 06:15:05,062 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:05,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:05,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1653233595, now seen corresponding path program 1 times [2021-10-20 06:15:05,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:05,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656454236] [2021-10-20 06:15:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:05,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:05,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:05,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656454236] [2021-10-20 06:15:05,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656454236] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:05,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:05,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:15:05,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449120131] [2021-10-20 06:15:05,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:05,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:05,095 INFO L87 Difference]: Start difference. First operand 113 states and 137 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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) [2021-10-20 06:15:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:05,151 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2021-10-20 06:15:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:05,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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 [2021-10-20 06:15:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:05,153 INFO L225 Difference]: With dead ends: 113 [2021-10-20 06:15:05,153 INFO L226 Difference]: Without dead ends: 113 [2021-10-20 06:15:05,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:05,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-20 06:15:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-20 06:15:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2021-10-20 06:15:05,157 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 23 [2021-10-20 06:15:05,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:05,157 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2021-10-20 06:15:05,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 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) [2021-10-20 06:15:05,158 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2021-10-20 06:15:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 06:15:05,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:05,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:05,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-20 06:15:05,159 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:05,159 INFO L82 PathProgramCache]: Analyzing trace with hash -457243102, now seen corresponding path program 1 times [2021-10-20 06:15:05,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:05,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953331110] [2021-10-20 06:15:05,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:05,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:05,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:05,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953331110] [2021-10-20 06:15:05,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953331110] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:05,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:05,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-20 06:15:05,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046786584] [2021-10-20 06:15:05,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:15:05,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:15:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:05,343 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:05,447 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2021-10-20 06:15:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 06:15:05,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-20 06:15:05,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:05,448 INFO L225 Difference]: With dead ends: 122 [2021-10-20 06:15:05,448 INFO L226 Difference]: Without dead ends: 87 [2021-10-20 06:15:05,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 68.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-20 06:15:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-20 06:15:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 86 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2021-10-20 06:15:05,451 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 24 [2021-10-20 06:15:05,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:05,451 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2021-10-20 06:15:05,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2021-10-20 06:15:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 06:15:05,452 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:05,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:05,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-20 06:15:05,452 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:05,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1970402359, now seen corresponding path program 1 times [2021-10-20 06:15:05,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:05,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006520213] [2021-10-20 06:15:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:05,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:05,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:05,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006520213] [2021-10-20 06:15:05,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006520213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:05,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:05,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-20 06:15:05,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922118940] [2021-10-20 06:15:05,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:05,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:05,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:05,494 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2021-10-20 06:15:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:05,540 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-10-20 06:15:05,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:05,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 [2021-10-20 06:15:05,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:05,541 INFO L225 Difference]: With dead ends: 85 [2021-10-20 06:15:05,542 INFO L226 Difference]: Without dead ends: 68 [2021-10-20 06:15:05,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:05,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-20 06:15:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-20 06:15:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 67 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2021-10-20 06:15:05,544 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 25 [2021-10-20 06:15:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:05,545 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2021-10-20 06:15:05,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2021-10-20 06:15:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2021-10-20 06:15:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 06:15:05,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:05,546 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:05,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-20 06:15:05,546 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:05,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1285726612, now seen corresponding path program 1 times [2021-10-20 06:15:05,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:05,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847891404] [2021-10-20 06:15:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:05,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:05,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:15:05,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847891404] [2021-10-20 06:15:05,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847891404] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:05,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:05,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-20 06:15:05,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895011863] [2021-10-20 06:15:05,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:15:05,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:15:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:15:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:05,604 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:05,673 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-20 06:15:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 06:15:05,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-20 06:15:05,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:05,674 INFO L225 Difference]: With dead ends: 78 [2021-10-20 06:15:05,674 INFO L226 Difference]: Without dead ends: 52 [2021-10-20 06:15:05,675 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 06:15:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-20 06:15:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-20 06:15:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2021-10-20 06:15:05,676 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 26 [2021-10-20 06:15:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:05,677 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-10-20 06:15:05,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2021-10-20 06:15:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 06:15:05,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:05,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:05,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-20 06:15:05,678 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:05,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1535359744, now seen corresponding path program 1 times [2021-10-20 06:15:05,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:15:05,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744272166] [2021-10-20 06:15:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:05,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:15:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:15:05,693 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 06:15:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:15:05,733 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 06:15:05,734 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 06:15:05,735 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,743 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:05,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-20 06:15:05,750 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:15:05,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:15:05 BoogieIcfgContainer [2021-10-20 06:15:05,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:15:05,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:15:05,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:15:05,814 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:15:05,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:02" (3/4) ... [2021-10-20 06:15:05,817 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 06:15:05,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:15:05,819 INFO L168 Benchmark]: Toolchain (without parser) took 6243.13 ms. Allocated memory was 90.2 MB in the beginning and 161.5 MB in the end (delta: 71.3 MB). Free memory was 69.6 MB in the beginning and 66.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 72.8 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,819 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:15:05,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.03 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 59.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.15 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 52.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,820 INFO L168 Benchmark]: Boogie Preprocessor took 96.01 ms. Allocated memory is still 90.2 MB. Free memory was 52.8 MB in the beginning and 48.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,821 INFO L168 Benchmark]: RCFGBuilder took 2162.21 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 59.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,821 INFO L168 Benchmark]: TraceAbstraction took 3410.09 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 59.3 MB in the beginning and 66.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:05,822 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 161.5 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:15:05,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.03 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 59.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.15 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 52.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.01 ms. Allocated memory is still 90.2 MB. Free memory was 52.8 MB in the beginning and 48.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2162.21 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 59.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3410.09 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 59.3 MB in the beginning and 66.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.04 ms. Allocated memory is still 161.5 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 [L236] devExt__Removed = 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 [L518] returnVal2 = -1073741823 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L551] return (returnVal2); [L248] status = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L290] return (status); [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 293]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 203 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 3282.4ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 34.6ms, AutomataDifference: 1443.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3362 SDtfs, 2014 SDslu, 2097 SDs, 0 SdLazy, 1109 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 836.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 215.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 162.5ms AutomataMinimizationTime, 21 MinimizatonAttempts, 103 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 59.6ms SsaConstructionTime, 369.4ms SatisfiabilityAnalysisTime, 805.5ms InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 06:15:05,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 06:15:08,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:15:08,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:15:08,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:15:08,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:15:08,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:15:08,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:15:08,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:15:08,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:15:08,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:15:08,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:15:08,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:15:08,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:15:08,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:15:08,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:15:08,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:15:08,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:15:08,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:15:08,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:15:08,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:15:08,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:15:08,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:15:08,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:15:08,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:15:08,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:15:08,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:15:08,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:15:08,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:15:08,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:15:08,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:15:08,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:15:08,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:15:08,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:15:08,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:15:08,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:15:08,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:15:08,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:15:08,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:15:08,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:15:08,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:15:08,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:15:08,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-20 06:15:08,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:15:08,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:15:08,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:15:08,557 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:15:08,557 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:15:08,557 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:15:08,558 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:15:08,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:15:08,558 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:15:08,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 06:15:08,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 06:15:08,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:15:08,559 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:15:08,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 06:15:08,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:15:08,560 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:15:08,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 06:15:08,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:15:08,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:15:08,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:15:08,563 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2021-10-20 06:15:08,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:15:08,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:15:08,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:15:08,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:15:08,964 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:15:08,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-20 06:15:09,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/89dce3af5/8f0ee5a9a5674cdda9fe9ced01d0b0df/FLAG4bb79ba48 [2021-10-20 06:15:09,705 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:15:09,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-20 06:15:09,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/89dce3af5/8f0ee5a9a5674cdda9fe9ced01d0b0df/FLAG4bb79ba48 [2021-10-20 06:15:10,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/data/89dce3af5/8f0ee5a9a5674cdda9fe9ced01d0b0df [2021-10-20 06:15:10,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:15:10,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:15:10,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:15:10,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:15:10,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:15:10,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@705d31a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10, skipping insertion in model container [2021-10-20 06:15:10,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:15:10,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:15:10,406 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-20 06:15:10,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:15:10,440 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:15:10,521 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_da1c2250-e5e8-45a2-9e37-1f2590a1b831/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-20 06:15:10,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:15:10,539 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:15:10,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10 WrapperNode [2021-10-20 06:15:10,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:15:10,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:15:10,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:15:10,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:15:10,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:15:10,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:15:10,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:15:10,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:15:10,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:15:10,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:15:10,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:15:10,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:15:10,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (1/1) ... [2021-10-20 06:15:10,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:15:10,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:15:10,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:15:10,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:15:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 06:15:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:15:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:15:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:15:11,143 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,166 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,175 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,186 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,194 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,200 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,205 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,212 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,214 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,218 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,222 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:11,230 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-20 06:15:12,094 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-20 06:15:12,094 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-20 06:15:12,094 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-20 06:15:12,095 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-20 06:15:12,095 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2021-10-20 06:15:12,095 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2021-10-20 06:15:12,095 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-20 06:15:12,096 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-20 06:15:12,096 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2021-10-20 06:15:12,096 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2021-10-20 06:15:12,096 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-20 06:15:12,096 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-20 06:15:12,097 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-10-20 06:15:12,097 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-10-20 06:15:12,097 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2021-10-20 06:15:12,097 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2021-10-20 06:15:12,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2021-10-20 06:15:12,121 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2021-10-20 06:15:12,121 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2021-10-20 06:15:12,121 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2021-10-20 06:15:12,121 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-20 06:15:12,122 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-20 06:15:12,122 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2021-10-20 06:15:12,122 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2021-10-20 06:15:12,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:15:12,134 INFO L299 CfgBuilder]: Removed 154 assume(true) statements. [2021-10-20 06:15:12,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:12 BoogieIcfgContainer [2021-10-20 06:15:12,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:15:12,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:15:12,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:15:12,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:15:12,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:15:10" (1/3) ... [2021-10-20 06:15:12,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1b1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:15:12, skipping insertion in model container [2021-10-20 06:15:12,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:15:10" (2/3) ... [2021-10-20 06:15:12,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1b1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:15:12, skipping insertion in model container [2021-10-20 06:15:12,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:12" (3/3) ... [2021-10-20 06:15:12,145 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-10-20 06:15:12,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:15:12,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-10-20 06:15:12,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:15:12,200 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 [2021-10-20 06:15:12,200 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-20 06:15:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 299 states have (on average 1.648829431438127) internal successors, (493), 330 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-20 06:15:12,232 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:12,233 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:12,233 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:12,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:12,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1805892157, now seen corresponding path program 1 times [2021-10-20 06:15:12,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:12,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156621472] [2021-10-20 06:15:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:12,252 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:12,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:12,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:12,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 06:15:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:12,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:12,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:12,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:12,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:12,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156621472] [2021-10-20 06:15:12,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156621472] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:12,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:12,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 06:15:12,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740493220] [2021-10-20 06:15:12,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:12,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:12,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:12,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:12,630 INFO L87 Difference]: Start difference. First operand has 331 states, 299 states have (on average 1.648829431438127) internal successors, (493), 330 states have internal predecessors, (493), 0 states have call successors, (0), 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 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:12,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:12,738 INFO L93 Difference]: Finished difference Result 340 states and 465 transitions. [2021-10-20 06:15:12,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:12,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-20 06:15:12,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:12,754 INFO L225 Difference]: With dead ends: 340 [2021-10-20 06:15:12,755 INFO L226 Difference]: Without dead ends: 334 [2021-10-20 06:15:12,756 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-20 06:15:12,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 329. [2021-10-20 06:15:12,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 298 states have (on average 1.5302013422818792) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 456 transitions. [2021-10-20 06:15:12,815 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 456 transitions. Word has length 7 [2021-10-20 06:15:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:12,815 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 456 transitions. [2021-10-20 06:15:12,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 456 transitions. [2021-10-20 06:15:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-20 06:15:12,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:12,817 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:12,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:13,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:13,026 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:13,027 INFO L82 PathProgramCache]: Analyzing trace with hash 557701687, now seen corresponding path program 1 times [2021-10-20 06:15:13,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:13,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224134293] [2021-10-20 06:15:13,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:13,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:13,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:13,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 06:15:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:13,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:13,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:13,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:13,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:13,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224134293] [2021-10-20 06:15:13,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224134293] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:13,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:13,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:13,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544271348] [2021-10-20 06:15:13,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:13,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:13,272 INFO L87 Difference]: Start difference. First operand 329 states and 456 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:13,543 INFO L93 Difference]: Finished difference Result 378 states and 524 transitions. [2021-10-20 06:15:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:13,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-20 06:15:13,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:13,547 INFO L225 Difference]: With dead ends: 378 [2021-10-20 06:15:13,547 INFO L226 Difference]: Without dead ends: 378 [2021-10-20 06:15:13,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-20 06:15:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 357. [2021-10-20 06:15:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 336 states have (on average 1.4732142857142858) internal successors, (495), 356 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 495 transitions. [2021-10-20 06:15:13,572 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 495 transitions. Word has length 13 [2021-10-20 06:15:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:13,573 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 495 transitions. [2021-10-20 06:15:13,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 495 transitions. [2021-10-20 06:15:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-20 06:15:13,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:13,574 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:13,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:13,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:13,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:13,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:13,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1801870968, now seen corresponding path program 1 times [2021-10-20 06:15:13,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:13,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920708945] [2021-10-20 06:15:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:13,789 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:13,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:13,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:13,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 06:15:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:13,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:13,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:13,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:14,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:14,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920708945] [2021-10-20 06:15:14,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920708945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:14,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:14,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 06:15:14,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084660822] [2021-10-20 06:15:14,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:14,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:14,014 INFO L87 Difference]: Start difference. First operand 357 states and 495 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:14,027 INFO L93 Difference]: Finished difference Result 356 states and 494 transitions. [2021-10-20 06:15:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-20 06:15:14,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:14,031 INFO L225 Difference]: With dead ends: 356 [2021-10-20 06:15:14,032 INFO L226 Difference]: Without dead ends: 351 [2021-10-20 06:15:14,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-20 06:15:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-10-20 06:15:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 331 states have (on average 1.447129909365559) internal successors, (479), 350 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 479 transitions. [2021-10-20 06:15:14,051 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 479 transitions. Word has length 13 [2021-10-20 06:15:14,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:14,052 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 479 transitions. [2021-10-20 06:15:14,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 479 transitions. [2021-10-20 06:15:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 06:15:14,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:14,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:14,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:14,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:14,269 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1900748477, now seen corresponding path program 1 times [2021-10-20 06:15:14,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:14,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597206998] [2021-10-20 06:15:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:14,270 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:14,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:14,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 06:15:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:14,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:14,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:14,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:14,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:14,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597206998] [2021-10-20 06:15:14,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597206998] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:14,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:14,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:14,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697201939] [2021-10-20 06:15:14,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:14,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:14,506 INFO L87 Difference]: Start difference. First operand 351 states and 479 transitions. Second operand has 3 states, 3 states have (on average 5.0) 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) [2021-10-20 06:15:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:14,548 INFO L93 Difference]: Finished difference Result 362 states and 491 transitions. [2021-10-20 06:15:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) 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 [2021-10-20 06:15:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:14,552 INFO L225 Difference]: With dead ends: 362 [2021-10-20 06:15:14,552 INFO L226 Difference]: Without dead ends: 362 [2021-10-20 06:15:14,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-10-20 06:15:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 307. [2021-10-20 06:15:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 295 states have (on average 1.4271186440677965) internal successors, (421), 306 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 421 transitions. [2021-10-20 06:15:14,565 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 421 transitions. Word has length 15 [2021-10-20 06:15:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:14,565 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 421 transitions. [2021-10-20 06:15:14,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) 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) [2021-10-20 06:15:14,570 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 421 transitions. [2021-10-20 06:15:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 06:15:14,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:14,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:14,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:14,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:14,789 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:14,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:14,789 INFO L82 PathProgramCache]: Analyzing trace with hash 306593718, now seen corresponding path program 1 times [2021-10-20 06:15:14,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:14,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160425187] [2021-10-20 06:15:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:14,790 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:14,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:14,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 06:15:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:14,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:14,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:14,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:15,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:15,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160425187] [2021-10-20 06:15:15,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160425187] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:15,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:15,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:15,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786509590] [2021-10-20 06:15:15,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:15,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:15,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:15,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:15,045 INFO L87 Difference]: Start difference. First operand 307 states and 421 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:15,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:15,194 INFO L93 Difference]: Finished difference Result 293 states and 407 transitions. [2021-10-20 06:15:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:15,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-20 06:15:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:15,196 INFO L225 Difference]: With dead ends: 293 [2021-10-20 06:15:15,196 INFO L226 Difference]: Without dead ends: 293 [2021-10-20 06:15:15,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-10-20 06:15:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-10-20 06:15:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4131944444444444) internal successors, (407), 292 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 407 transitions. [2021-10-20 06:15:15,221 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 407 transitions. Word has length 21 [2021-10-20 06:15:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:15,221 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 407 transitions. [2021-10-20 06:15:15,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 407 transitions. [2021-10-20 06:15:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 06:15:15,223 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:15,223 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:15,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:15,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:15,435 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:15,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:15,436 INFO L82 PathProgramCache]: Analyzing trace with hash 847063989, now seen corresponding path program 1 times [2021-10-20 06:15:15,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:15,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680264065] [2021-10-20 06:15:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:15,437 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:15,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:15,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:15,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 06:15:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:15,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:15,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:15,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:15,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:15,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680264065] [2021-10-20 06:15:15,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680264065] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:15,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:15,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:15:15,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312308091] [2021-10-20 06:15:15,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:15:15,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:15,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:15:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:15,907 INFO L87 Difference]: Start difference. First operand 293 states and 407 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:16,143 INFO L93 Difference]: Finished difference Result 318 states and 433 transitions. [2021-10-20 06:15:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:16,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-20 06:15:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:16,146 INFO L225 Difference]: With dead ends: 318 [2021-10-20 06:15:16,146 INFO L226 Difference]: Without dead ends: 317 [2021-10-20 06:15:16,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.3ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:16,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-20 06:15:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 305. [2021-10-20 06:15:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 300 states have (on average 1.4066666666666667) internal successors, (422), 304 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 422 transitions. [2021-10-20 06:15:16,154 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 422 transitions. Word has length 26 [2021-10-20 06:15:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:16,155 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 422 transitions. [2021-10-20 06:15:16,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 422 transitions. [2021-10-20 06:15:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 06:15:16,156 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:16,156 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:16,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:16,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:16,357 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:16,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1660315800, now seen corresponding path program 1 times [2021-10-20 06:15:16,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:16,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610278682] [2021-10-20 06:15:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:16,358 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:16,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:16,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:16,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 06:15:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:16,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:16,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:16,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:16,674 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:16,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610278682] [2021-10-20 06:15:16,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610278682] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:16,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:16,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:16,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778035363] [2021-10-20 06:15:16,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:16,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:16,676 INFO L87 Difference]: Start difference. First operand 305 states and 422 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:16,797 INFO L93 Difference]: Finished difference Result 302 states and 418 transitions. [2021-10-20 06:15:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-20 06:15:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:16,799 INFO L225 Difference]: With dead ends: 302 [2021-10-20 06:15:16,799 INFO L226 Difference]: Without dead ends: 302 [2021-10-20 06:15:16,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:16,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-20 06:15:16,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-10-20 06:15:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 301 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2021-10-20 06:15:16,806 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 27 [2021-10-20 06:15:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:16,806 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2021-10-20 06:15:16,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2021-10-20 06:15:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 06:15:16,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:16,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:16,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:17,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:17,020 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:17,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash -23036524, now seen corresponding path program 1 times [2021-10-20 06:15:17,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:17,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377322494] [2021-10-20 06:15:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:17,021 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:17,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:17,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:17,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 06:15:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:17,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:17,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:17,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:17,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:17,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377322494] [2021-10-20 06:15:17,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377322494] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:17,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:17,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 06:15:17,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097139767] [2021-10-20 06:15:17,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:17,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:17,349 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:17,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:17,375 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2021-10-20 06:15:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:17,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-20 06:15:17,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:17,378 INFO L225 Difference]: With dead ends: 315 [2021-10-20 06:15:17,378 INFO L226 Difference]: Without dead ends: 315 [2021-10-20 06:15:17,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:17,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-10-20 06:15:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 302. [2021-10-20 06:15:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.3993288590604027) internal successors, (417), 301 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 417 transitions. [2021-10-20 06:15:17,386 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 417 transitions. Word has length 27 [2021-10-20 06:15:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:17,387 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 417 transitions. [2021-10-20 06:15:17,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 417 transitions. [2021-10-20 06:15:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 06:15:17,388 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:17,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:17,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:17,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:17,600 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:17,600 INFO L82 PathProgramCache]: Analyzing trace with hash 476963846, now seen corresponding path program 1 times [2021-10-20 06:15:17,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:17,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891257609] [2021-10-20 06:15:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:17,601 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:17,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:17,605 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:17,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-20 06:15:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:17,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:17,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:17,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:18,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:18,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891257609] [2021-10-20 06:15:18,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891257609] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:18,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:18,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:15:18,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825529691] [2021-10-20 06:15:18,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:15:18,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:15:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:18,075 INFO L87 Difference]: Start difference. First operand 302 states and 417 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:18,298 INFO L93 Difference]: Finished difference Result 306 states and 419 transitions. [2021-10-20 06:15:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:18,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-20 06:15:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:18,300 INFO L225 Difference]: With dead ends: 306 [2021-10-20 06:15:18,300 INFO L226 Difference]: Without dead ends: 306 [2021-10-20 06:15:18,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-20 06:15:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2021-10-20 06:15:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.395973154362416) internal successors, (416), 301 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 416 transitions. [2021-10-20 06:15:18,308 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 416 transitions. Word has length 27 [2021-10-20 06:15:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:18,308 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 416 transitions. [2021-10-20 06:15:18,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 416 transitions. [2021-10-20 06:15:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-20 06:15:18,310 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:18,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:18,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:18,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:18,521 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1894183263, now seen corresponding path program 1 times [2021-10-20 06:15:18,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:18,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387304094] [2021-10-20 06:15:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:18,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:18,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:18,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:18,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-20 06:15:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:18,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:18,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:18,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:18,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:18,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387304094] [2021-10-20 06:15:18,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387304094] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:18,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:18,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 06:15:18,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41514929] [2021-10-20 06:15:18,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:18,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:18,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:18,941 INFO L87 Difference]: Start difference. First operand 302 states and 416 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:18,963 INFO L93 Difference]: Finished difference Result 295 states and 404 transitions. [2021-10-20 06:15:18,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:18,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-20 06:15:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:18,966 INFO L225 Difference]: With dead ends: 295 [2021-10-20 06:15:18,966 INFO L226 Difference]: Without dead ends: 273 [2021-10-20 06:15:18,966 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:18,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-10-20 06:15:18,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 249. [2021-10-20 06:15:18,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.410569105691057) internal successors, (347), 248 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 347 transitions. [2021-10-20 06:15:18,973 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 347 transitions. Word has length 28 [2021-10-20 06:15:18,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:18,973 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 347 transitions. [2021-10-20 06:15:18,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 347 transitions. [2021-10-20 06:15:18,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-20 06:15:18,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:18,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:18,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:19,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:19,186 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:19,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:19,187 INFO L82 PathProgramCache]: Analyzing trace with hash 403678015, now seen corresponding path program 1 times [2021-10-20 06:15:19,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:19,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690025876] [2021-10-20 06:15:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:19,188 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:19,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:19,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:19,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-20 06:15:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:19,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:19,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:19,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:19,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:19,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690025876] [2021-10-20 06:15:19,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690025876] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:19,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:19,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-20 06:15:19,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632096007] [2021-10-20 06:15:19,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:15:19,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:15:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:15:19,560 INFO L87 Difference]: Start difference. First operand 249 states and 347 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:19,600 INFO L93 Difference]: Finished difference Result 242 states and 337 transitions. [2021-10-20 06:15:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:15:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-20 06:15:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:19,602 INFO L225 Difference]: With dead ends: 242 [2021-10-20 06:15:19,603 INFO L226 Difference]: Without dead ends: 242 [2021-10-20 06:15:19,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-20 06:15:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-20 06:15:19,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.4100418410041842) internal successors, (337), 241 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2021-10-20 06:15:19,609 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 30 [2021-10-20 06:15:19,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:19,609 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2021-10-20 06:15:19,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2021-10-20 06:15:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-20 06:15:19,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:19,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:19,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:19,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:19,824 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash -959450186, now seen corresponding path program 1 times [2021-10-20 06:15:19,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:19,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567704022] [2021-10-20 06:15:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:19,825 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:19,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:19,826 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:19,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-20 06:15:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:20,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:20,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:20,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:20,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:20,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567704022] [2021-10-20 06:15:20,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567704022] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:20,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:20,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:15:20,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797109623] [2021-10-20 06:15:20,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:15:20,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:20,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:15:20,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:20,321 INFO L87 Difference]: Start difference. First operand 242 states and 337 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:20,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:20,483 INFO L93 Difference]: Finished difference Result 242 states and 330 transitions. [2021-10-20 06:15:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:20,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-20 06:15:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:20,485 INFO L225 Difference]: With dead ends: 242 [2021-10-20 06:15:20,485 INFO L226 Difference]: Without dead ends: 242 [2021-10-20 06:15:20,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.0ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:20,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-20 06:15:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-20 06:15:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.3807531380753137) internal successors, (330), 241 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 330 transitions. [2021-10-20 06:15:20,493 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 330 transitions. Word has length 31 [2021-10-20 06:15:20,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:20,493 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 330 transitions. [2021-10-20 06:15:20,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 330 transitions. [2021-10-20 06:15:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-20 06:15:20,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:20,495 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:20,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:20,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:20,708 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:20,709 INFO L82 PathProgramCache]: Analyzing trace with hash -841653818, now seen corresponding path program 1 times [2021-10-20 06:15:20,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:20,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374555474] [2021-10-20 06:15:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:20,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:20,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:20,711 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:20,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-20 06:15:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:20,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:20,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:21,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:21,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:21,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374555474] [2021-10-20 06:15:21,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374555474] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:21,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:21,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:15:21,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133259574] [2021-10-20 06:15:21,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:15:21,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:21,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:15:21,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:21,294 INFO L87 Difference]: Start difference. First operand 242 states and 330 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:21,491 INFO L93 Difference]: Finished difference Result 242 states and 329 transitions. [2021-10-20 06:15:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-20 06:15:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:21,493 INFO L225 Difference]: With dead ends: 242 [2021-10-20 06:15:21,493 INFO L226 Difference]: Without dead ends: 242 [2021-10-20 06:15:21,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-20 06:15:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-20 06:15:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.3765690376569037) internal successors, (329), 241 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 329 transitions. [2021-10-20 06:15:21,499 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 329 transitions. Word has length 31 [2021-10-20 06:15:21,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:21,500 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 329 transitions. [2021-10-20 06:15:21,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2021-10-20 06:15:21,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-20 06:15:21,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:21,501 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:21,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:21,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:21,713 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:21,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:21,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2012498225, now seen corresponding path program 1 times [2021-10-20 06:15:21,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:21,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068509325] [2021-10-20 06:15:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:21,714 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:21,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:21,715 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:21,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-20 06:15:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:21,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-20 06:15:21,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:22,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:22,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068509325] [2021-10-20 06:15:22,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068509325] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:22,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:22,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-20 06:15:22,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457823234] [2021-10-20 06:15:22,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-20 06:15:22,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-20 06:15:22,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:15:22,310 INFO L87 Difference]: Start difference. First operand 242 states and 329 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:22,984 INFO L93 Difference]: Finished difference Result 360 states and 453 transitions. [2021-10-20 06:15:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-20 06:15:22,984 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-20 06:15:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:22,986 INFO L225 Difference]: With dead ends: 360 [2021-10-20 06:15:22,986 INFO L226 Difference]: Without dead ends: 280 [2021-10-20 06:15:22,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 278.9ms TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2021-10-20 06:15:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-20 06:15:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 211. [2021-10-20 06:15:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 208 states have (on average 1.375) internal successors, (286), 210 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 286 transitions. [2021-10-20 06:15:22,993 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 286 transitions. Word has length 33 [2021-10-20 06:15:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:22,993 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 286 transitions. [2021-10-20 06:15:22,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 286 transitions. [2021-10-20 06:15:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-20 06:15:22,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:22,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:23,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:23,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:23,214 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:23,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1889062697, now seen corresponding path program 1 times [2021-10-20 06:15:23,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:23,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350617629] [2021-10-20 06:15:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:23,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:23,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:23,215 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:23,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-20 06:15:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:23,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 06:15:23,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:23,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:23,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:23,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350617629] [2021-10-20 06:15:23,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350617629] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:23,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:23,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-20 06:15:23,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50823511] [2021-10-20 06:15:23,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 06:15:23,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:23,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 06:15:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:23,686 INFO L87 Difference]: Start difference. First operand 211 states and 286 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:23,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:23,890 INFO L93 Difference]: Finished difference Result 285 states and 362 transitions. [2021-10-20 06:15:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 06:15:23,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-20 06:15:23,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:23,893 INFO L225 Difference]: With dead ends: 285 [2021-10-20 06:15:23,893 INFO L226 Difference]: Without dead ends: 271 [2021-10-20 06:15:23,893 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 59.9ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-20 06:15:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-20 06:15:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 199. [2021-10-20 06:15:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.3775510204081634) internal successors, (270), 198 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 270 transitions. [2021-10-20 06:15:23,899 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 270 transitions. Word has length 33 [2021-10-20 06:15:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:23,899 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 270 transitions. [2021-10-20 06:15:23,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 270 transitions. [2021-10-20 06:15:23,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-20 06:15:23,901 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:23,901 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:23,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:24,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:24,113 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:24,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:24,113 INFO L82 PathProgramCache]: Analyzing trace with hash -822248422, now seen corresponding path program 1 times [2021-10-20 06:15:24,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:24,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735874515] [2021-10-20 06:15:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:24,114 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:24,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:24,115 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:24,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-20 06:15:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:24,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 06:15:24,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:24,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:24,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:24,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735874515] [2021-10-20 06:15:24,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735874515] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:24,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:24,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-20 06:15:24,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760135770] [2021-10-20 06:15:24,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 06:15:24,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:24,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 06:15:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:15:24,561 INFO L87 Difference]: Start difference. First operand 199 states and 270 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:24,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:24,671 INFO L93 Difference]: Finished difference Result 226 states and 292 transitions. [2021-10-20 06:15:24,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:24,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-20 06:15:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:24,672 INFO L225 Difference]: With dead ends: 226 [2021-10-20 06:15:24,672 INFO L226 Difference]: Without dead ends: 226 [2021-10-20 06:15:24,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 06:15:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-20 06:15:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2021-10-20 06:15:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.3520408163265305) internal successors, (265), 198 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2021-10-20 06:15:24,678 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 265 transitions. Word has length 34 [2021-10-20 06:15:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:24,678 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 265 transitions. [2021-10-20 06:15:24,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 265 transitions. [2021-10-20 06:15:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-20 06:15:24,679 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:24,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:24,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:24,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:24,880 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:24,880 INFO L82 PathProgramCache]: Analyzing trace with hash -864264718, now seen corresponding path program 1 times [2021-10-20 06:15:24,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:24,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525817140] [2021-10-20 06:15:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:24,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:24,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:24,882 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:24,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-20 06:15:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:25,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:25,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:25,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:25,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:25,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525817140] [2021-10-20 06:15:25,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525817140] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:25,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:25,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:25,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990469929] [2021-10-20 06:15:25,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:25,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:25,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:25,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:25,347 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:25,422 INFO L93 Difference]: Finished difference Result 214 states and 276 transitions. [2021-10-20 06:15:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-20 06:15:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:25,424 INFO L225 Difference]: With dead ends: 214 [2021-10-20 06:15:25,424 INFO L226 Difference]: Without dead ends: 214 [2021-10-20 06:15:25,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-20 06:15:25,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2021-10-20 06:15:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 187 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 250 transitions. [2021-10-20 06:15:25,429 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 250 transitions. Word has length 34 [2021-10-20 06:15:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:25,429 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 250 transitions. [2021-10-20 06:15:25,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 250 transitions. [2021-10-20 06:15:25,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-20 06:15:25,430 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:25,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:25,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:25,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:25,631 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1935189253, now seen corresponding path program 1 times [2021-10-20 06:15:25,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:25,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050611535] [2021-10-20 06:15:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:25,632 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:25,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:25,633 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:25,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-20 06:15:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:25,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 06:15:25,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:26,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:26,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:26,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050611535] [2021-10-20 06:15:26,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050611535] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:26,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:26,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-20 06:15:26,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028448073] [2021-10-20 06:15:26,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-20 06:15:26,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:26,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-20 06:15:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-20 06:15:26,218 INFO L87 Difference]: Start difference. First operand 188 states and 250 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:26,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:26,498 INFO L93 Difference]: Finished difference Result 213 states and 277 transitions. [2021-10-20 06:15:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-20 06:15:26,499 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-20 06:15:26,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:26,500 INFO L225 Difference]: With dead ends: 213 [2021-10-20 06:15:26,500 INFO L226 Difference]: Without dead ends: 166 [2021-10-20 06:15:26,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 164.1ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-10-20 06:15:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-20 06:15:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-20 06:15:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.329268292682927) internal successors, (218), 165 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2021-10-20 06:15:26,504 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 34 [2021-10-20 06:15:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:26,505 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2021-10-20 06:15:26,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2021-10-20 06:15:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-20 06:15:26,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:26,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:26,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:26,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:26,707 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:26,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1030061199, now seen corresponding path program 1 times [2021-10-20 06:15:26,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:26,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172181152] [2021-10-20 06:15:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:26,708 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:26,709 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:26,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-20 06:15:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:27,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 06:15:27,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:27,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:27,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:27,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172181152] [2021-10-20 06:15:27,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172181152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:27,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:27,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 06:15:27,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281420333] [2021-10-20 06:15:27,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:15:27,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:15:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:27,197 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:27,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:27,214 INFO L93 Difference]: Finished difference Result 162 states and 214 transitions. [2021-10-20 06:15:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:15:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-20 06:15:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:27,217 INFO L225 Difference]: With dead ends: 162 [2021-10-20 06:15:27,217 INFO L226 Difference]: Without dead ends: 141 [2021-10-20 06:15:27,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:15:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-20 06:15:27,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-20 06:15:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3785714285714286) internal successors, (193), 140 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 193 transitions. [2021-10-20 06:15:27,222 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 193 transitions. Word has length 35 [2021-10-20 06:15:27,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:27,222 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 193 transitions. [2021-10-20 06:15:27,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 193 transitions. [2021-10-20 06:15:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-20 06:15:27,223 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:27,223 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:27,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:27,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:27,439 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash -2102888975, now seen corresponding path program 1 times [2021-10-20 06:15:27,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:27,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762272927] [2021-10-20 06:15:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:27,439 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:27,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:27,440 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:27,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-20 06:15:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:27,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 06:15:27,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:27,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:28,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:28,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762272927] [2021-10-20 06:15:28,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762272927] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:28,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:28,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 06:15:28,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206017516] [2021-10-20 06:15:28,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 06:15:28,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 06:15:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 06:15:28,062 INFO L87 Difference]: Start difference. First operand 141 states and 193 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:28,142 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2021-10-20 06:15:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 06:15:28,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-20 06:15:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:28,143 INFO L225 Difference]: With dead ends: 133 [2021-10-20 06:15:28,144 INFO L226 Difference]: Without dead ends: 133 [2021-10-20 06:15:28,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 06:15:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-20 06:15:28,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2021-10-20 06:15:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 124 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 169 transitions. [2021-10-20 06:15:28,146 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 169 transitions. Word has length 35 [2021-10-20 06:15:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:28,147 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 169 transitions. [2021-10-20 06:15:28,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 169 transitions. [2021-10-20 06:15:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-20 06:15:28,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:28,147 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:28,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:28,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:28,354 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:28,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1665760845, now seen corresponding path program 1 times [2021-10-20 06:15:28,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:28,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300353166] [2021-10-20 06:15:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:28,355 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:28,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:28,356 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:28,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-20 06:15:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:15:28,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 06:15:28,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 06:15:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:28,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 06:15:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:15:29,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 06:15:29,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300353166] [2021-10-20 06:15:29,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300353166] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 06:15:29,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:15:29,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-20 06:15:29,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651980962] [2021-10-20 06:15:29,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-20 06:15:29,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 06:15:29,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-20 06:15:29,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-20 06:15:29,061 INFO L87 Difference]: Start difference. First operand 125 states and 169 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:15:29,462 INFO L93 Difference]: Finished difference Result 180 states and 224 transitions. [2021-10-20 06:15:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-20 06:15:29,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-20 06:15:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:15:29,463 INFO L225 Difference]: With dead ends: 180 [2021-10-20 06:15:29,464 INFO L226 Difference]: Without dead ends: 95 [2021-10-20 06:15:29,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 274.9ms TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-20 06:15:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-20 06:15:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 77. [2021-10-20 06:15:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.263157894736842) internal successors, (96), 76 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 96 transitions. [2021-10-20 06:15:29,467 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 96 transitions. Word has length 35 [2021-10-20 06:15:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:15:29,467 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 96 transitions. [2021-10-20 06:15:29,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:15:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 96 transitions. [2021-10-20 06:15:29,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-20 06:15:29,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:15:29,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 06:15:29,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-10-20 06:15:29,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:29,680 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-20 06:15:29,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:15:29,680 INFO L82 PathProgramCache]: Analyzing trace with hash 724480386, now seen corresponding path program 1 times [2021-10-20 06:15:29,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 06:15:29,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582824995] [2021-10-20 06:15:29,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:15:29,681 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 06:15:29,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 06:15:29,682 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 06:15:29,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-20 06:15:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:15:30,053 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 06:15:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:15:30,183 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 06:15:30,183 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 06:15:30,184 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 06:15:30,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-20 06:15:30,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 06:15:30,410 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:15:30,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:15:30 BoogieIcfgContainer [2021-10-20 06:15:30,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:15:30,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:15:30,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:15:30,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:15:30,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:15:12" (3/4) ... [2021-10-20 06:15:30,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 06:15:30,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:15:30,528 INFO L168 Benchmark]: Toolchain (without parser) took 20503.86 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 41.7 MB in the beginning and 73.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,528 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory was 45.6 MB in the beginning and 45.6 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:15:30,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.41 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 42.1 MB in the end (delta: -679.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.70 ms. Allocated memory is still 65.0 MB. Free memory was 42.1 MB in the beginning and 36.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,530 INFO L168 Benchmark]: Boogie Preprocessor took 122.06 ms. Allocated memory is still 65.0 MB. Free memory was 36.5 MB in the beginning and 32.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,530 INFO L168 Benchmark]: RCFGBuilder took 1351.93 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.5 MB in the beginning and 54.7 MB in the end (delta: -22.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,531 INFO L168 Benchmark]: TraceAbstraction took 18384.30 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 54.0 MB in the beginning and 73.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-20 06:15:30,531 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 123.7 MB. Free memory is still 73.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:15:30,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory was 45.6 MB in the beginning and 45.6 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 528.41 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 42.1 MB in the end (delta: -679.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.70 ms. Allocated memory is still 65.0 MB. Free memory was 42.1 MB in the beginning and 36.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.06 ms. Allocated memory is still 65.0 MB. Free memory was 36.5 MB in the beginning and 32.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1351.93 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.5 MB in the beginning and 54.7 MB in the end (delta: -22.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18384.30 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 54.0 MB in the beginning and 73.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.20 ms. Allocated memory is still 123.7 MB. Free memory is still 73.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L236] devExt__Removed = 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L551] return (returnVal2); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L248] status = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L290] return (status); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 293]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 331 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 18216.7ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 39.6ms, AutomataDifference: 3591.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6425 SDtfs, 6678 SDslu, 10063 SDs, 0 SdLazy, 2203 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2092.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1144 GetRequests, 1024 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1051.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=357occurred in iteration=2, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 208.0ms AutomataMinimizationTime, 21 MinimizatonAttempts, 354 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 357.7ms SsaConstructionTime, 804.7ms SatisfiabilityAnalysisTime, 4501.7ms InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1096 ConstructedInterpolants, 0 QuantifiedInterpolants, 2737 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2701 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 06:15:30,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1c2250-e5e8-45a2-9e37-1f2590a1b831/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...