./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.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_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2021-10-24 09:46:35,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:46:35,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:46:35,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:46:35,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:46:35,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:46:35,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:46:35,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:46:35,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:46:35,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:46:35,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:46:35,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:46:35,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:46:35,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:46:35,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:46:35,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:46:35,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:46:35,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:46:35,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:46:35,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:46:35,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:46:35,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:46:35,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:46:35,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:46:35,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:46:35,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:46:35,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:46:35,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:46:35,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:46:35,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:46:35,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:46:35,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:46:35,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:46:35,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:46:35,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:46:35,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:46:35,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:46:35,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:46:35,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:46:35,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:46:35,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:46:35,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 09:46:35,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:46:35,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:46:35,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:46:35,954 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:46:35,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:46:35,955 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:46:35,955 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:46:35,955 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:46:35,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:46:35,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:46:35,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:46:35,957 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:46:35,958 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:46:35,958 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:46:35,958 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:46:35,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 09:46:35,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 09:46:35,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:46:35,960 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:46:35,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 09:46:35,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:46:35,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:46:35,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:46:35,961 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 09:46:35,962 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 09:46:35,962 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 09:46:35,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:46:35,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:46:35,964 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:46:35,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:46:35,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:46:35,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:46:35,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:35,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:46:35,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:46:35,966 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:46:35,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:46:35,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:46:35,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:46:35,967 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_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-10-24 09:46:36,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:46:36,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:46:36,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:46:36,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:46:36,276 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:46:36,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-24 09:46:36,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/ec66636d7/368fa439d8a74653acc74caf976f1a3d/FLAG5aef0c636 [2021-10-24 09:46:36,983 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:46:36,984 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-24 09:46:37,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/ec66636d7/368fa439d8a74653acc74caf976f1a3d/FLAG5aef0c636 [2021-10-24 09:46:37,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/ec66636d7/368fa439d8a74653acc74caf976f1a3d [2021-10-24 09:46:37,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:46:37,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:46:37,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:37,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:46:37,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:46:37,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:37,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3691a88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37, skipping insertion in model container [2021-10-24 09:46:37,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:37,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:46:37,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:46:37,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-24 09:46:37,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:37,792 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:46:37,820 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_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-24 09:46:37,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:37,954 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:46:37,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37 WrapperNode [2021-10-24 09:46:37,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:37,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:37,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:46:37,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:46:37,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:37,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:38,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:46:38,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:46:38,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:46:38,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:46:38,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:46:38,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:46:38,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:46:38,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (1/1) ... [2021-10-24 09:46:38,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:46:38,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:46:38,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:46:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:46:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 09:46:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:46:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:46:38,549 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,557 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,572 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,585 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,602 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,606 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,610 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,614 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,633 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,634 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,641 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,646 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,664 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,665 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,668 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,671 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,677 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,691 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,693 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,696 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,699 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,701 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,701 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:38,704 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:39,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2021-10-24 09:46:39,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2021-10-24 09:46:39,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-10-24 09:46:39,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2021-10-24 09:46:39,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2021-10-24 09:46:39,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2021-10-24 09:46:39,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2021-10-24 09:46:39,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2021-10-24 09:46:39,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2021-10-24 09:46:39,662 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2021-10-24 09:46:39,663 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2021-10-24 09:46:39,664 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-24 09:46:39,664 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-24 09:46:39,665 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-10-24 09:46:39,665 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-10-24 09:46:39,666 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2021-10-24 09:46:39,666 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2021-10-24 09:46:39,666 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-10-24 09:46:39,666 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2021-10-24 09:46:39,667 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-10-24 09:46:39,668 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2021-10-24 09:46:39,669 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2021-10-24 09:46:39,669 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2021-10-24 09:46:39,669 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2021-10-24 09:46:40,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:46:40,568 INFO L299 CfgBuilder]: Removed 207 assume(true) statements. [2021-10-24 09:46:40,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:40 BoogieIcfgContainer [2021-10-24 09:46:40,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:46:40,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:46:40,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:46:40,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:46:40,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:46:37" (1/3) ... [2021-10-24 09:46:40,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d949ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:40, skipping insertion in model container [2021-10-24 09:46:40,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:37" (2/3) ... [2021-10-24 09:46:40,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d949ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:40, skipping insertion in model container [2021-10-24 09:46:40,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:40" (3/3) ... [2021-10-24 09:46:40,586 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-24 09:46:40,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:46:40,590 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-10-24 09:46:40,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:46:40,629 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 [2021-10-24 09:46:40,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-24 09:46:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 216 states have (on average 1.7824074074074074) internal successors, (385), 258 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 09:46:40,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:40,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 09:46:40,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:40,663 INFO L82 PathProgramCache]: Analyzing trace with hash 50472835, now seen corresponding path program 1 times [2021-10-24 09:46:40,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:40,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563439539] [2021-10-24 09:46:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:40,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:40,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:40,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563439539] [2021-10-24 09:46:40,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563439539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:40,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:40,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 09:46:40,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741964636] [2021-10-24 09:46:40,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:40,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:40,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:40,960 INFO L87 Difference]: Start difference. First operand has 259 states, 216 states have (on average 1.7824074074074074) internal successors, (385), 258 states have internal predecessors, (385), 0 states have call successors, (0), 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) [2021-10-24 09:46:41,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:41,049 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2021-10-24 09:46:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:41,052 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 [2021-10-24 09:46:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:41,074 INFO L225 Difference]: With dead ends: 259 [2021-10-24 09:46:41,075 INFO L226 Difference]: Without dead ends: 258 [2021-10-24 09:46:41,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-10-24 09:46:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-10-24 09:46:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.5740740740740742) internal successors, (340), 257 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 340 transitions. [2021-10-24 09:46:41,151 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 340 transitions. Word has length 4 [2021-10-24 09:46:41,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:41,152 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 340 transitions. [2021-10-24 09:46:41,152 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) [2021-10-24 09:46:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 340 transitions. [2021-10-24 09:46:41,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 09:46:41,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:41,153 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 09:46:41,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 09:46:41,154 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:41,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1564663123, now seen corresponding path program 1 times [2021-10-24 09:46:41,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:41,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863124778] [2021-10-24 09:46:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:41,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:41,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:41,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863124778] [2021-10-24 09:46:41,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863124778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:41,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:41,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 09:46:41,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745485611] [2021-10-24 09:46:41,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:41,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:41,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,255 INFO L87 Difference]: Start difference. First operand 258 states and 340 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:41,271 INFO L93 Difference]: Finished difference Result 257 states and 339 transitions. [2021-10-24 09:46:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:41,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 09:46:41,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:41,274 INFO L225 Difference]: With dead ends: 257 [2021-10-24 09:46:41,274 INFO L226 Difference]: Without dead ends: 255 [2021-10-24 09:46:41,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-24 09:46:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-10-24 09:46:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 214 states have (on average 1.5420560747663552) internal successors, (330), 254 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) [2021-10-24 09:46:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 330 transitions. [2021-10-24 09:46:41,305 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 330 transitions. Word has length 5 [2021-10-24 09:46:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:41,306 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 330 transitions. [2021-10-24 09:46:41,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 330 transitions. [2021-10-24 09:46:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 09:46:41,307 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:41,307 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:41,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 09:46:41,308 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:41,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:41,309 INFO L82 PathProgramCache]: Analyzing trace with hash 405694776, now seen corresponding path program 1 times [2021-10-24 09:46:41,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:41,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868307855] [2021-10-24 09:46:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:41,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:41,404 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:41,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868307855] [2021-10-24 09:46:41,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868307855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:41,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:41,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:41,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962225067] [2021-10-24 09:46:41,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:41,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:41,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:41,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,409 INFO L87 Difference]: Start difference. First operand 255 states and 330 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:41,579 INFO L93 Difference]: Finished difference Result 259 states and 342 transitions. [2021-10-24 09:46:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:41,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:46:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:41,581 INFO L225 Difference]: With dead ends: 259 [2021-10-24 09:46:41,582 INFO L226 Difference]: Without dead ends: 259 [2021-10-24 09:46:41,582 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 [2021-10-24 09:46:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-10-24 09:46:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2021-10-24 09:46:41,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 230 states have (on average 1.4869565217391305) internal successors, (342), 258 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 342 transitions. [2021-10-24 09:46:41,591 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 342 transitions. Word has length 7 [2021-10-24 09:46:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:41,591 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 342 transitions. [2021-10-24 09:46:41,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 342 transitions. [2021-10-24 09:46:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 09:46:41,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:41,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:41,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 09:46:41,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash -909885818, now seen corresponding path program 1 times [2021-10-24 09:46:41,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:41,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502013958] [2021-10-24 09:46:41,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:41,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:41,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:41,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502013958] [2021-10-24 09:46:41,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502013958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:41,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:41,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:41,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805330485] [2021-10-24 09:46:41,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:41,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:41,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,703 INFO L87 Difference]: Start difference. First operand 259 states and 342 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) [2021-10-24 09:46:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:41,745 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2021-10-24 09:46:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:41,746 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 [2021-10-24 09:46:41,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:41,748 INFO L225 Difference]: With dead ends: 336 [2021-10-24 09:46:41,748 INFO L226 Difference]: Without dead ends: 336 [2021-10-24 09:46:41,749 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 [2021-10-24 09:46:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-10-24 09:46:41,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 247. [2021-10-24 09:46:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 226 states have (on average 1.4380530973451326) internal successors, (325), 246 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 325 transitions. [2021-10-24 09:46:41,762 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 325 transitions. Word has length 9 [2021-10-24 09:46:41,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:41,762 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 325 transitions. [2021-10-24 09:46:41,763 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) [2021-10-24 09:46:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 325 transitions. [2021-10-24 09:46:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 09:46:41,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:41,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:41,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 09:46:41,766 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:41,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:41,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1034398014, now seen corresponding path program 1 times [2021-10-24 09:46:41,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:41,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482513876] [2021-10-24 09:46:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:41,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:41,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:41,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482513876] [2021-10-24 09:46:41,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482513876] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:41,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:41,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:41,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995102956] [2021-10-24 09:46:41,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:41,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:41,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:41,838 INFO L87 Difference]: Start difference. First operand 247 states and 325 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) [2021-10-24 09:46:41,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:41,858 INFO L93 Difference]: Finished difference Result 284 states and 369 transitions. [2021-10-24 09:46:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:41,859 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 [2021-10-24 09:46:41,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:41,861 INFO L225 Difference]: With dead ends: 284 [2021-10-24 09:46:41,861 INFO L226 Difference]: Without dead ends: 284 [2021-10-24 09:46:41,861 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 [2021-10-24 09:46:41,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-24 09:46:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 271. [2021-10-24 09:46:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.4342629482071714) internal successors, (360), 270 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 360 transitions. [2021-10-24 09:46:41,880 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 360 transitions. Word has length 13 [2021-10-24 09:46:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:41,881 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 360 transitions. [2021-10-24 09:46:41,881 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) [2021-10-24 09:46:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 360 transitions. [2021-10-24 09:46:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 09:46:41,885 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:41,885 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:41,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 09:46:41,886 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2001838400, now seen corresponding path program 1 times [2021-10-24 09:46:41,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:41,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588320534] [2021-10-24 09:46:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:41,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:41,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:41,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588320534] [2021-10-24 09:46:41,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588320534] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:41,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:41,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 09:46:41,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006092278] [2021-10-24 09:46:41,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:41,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:41,978 INFO L87 Difference]: Start difference. First operand 271 states and 360 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,004 INFO L93 Difference]: Finished difference Result 301 states and 386 transitions. [2021-10-24 09:46:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:42,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 09:46:42,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,007 INFO L225 Difference]: With dead ends: 301 [2021-10-24 09:46:42,007 INFO L226 Difference]: Without dead ends: 301 [2021-10-24 09:46:42,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-24 09:46:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2021-10-24 09:46:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 238 states have (on average 1.4243697478991597) internal successors, (339), 257 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2021-10-24 09:46:42,018 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 16 [2021-10-24 09:46:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,018 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2021-10-24 09:46:42,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2021-10-24 09:46:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 09:46:42,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 09:46:42,025 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1880136171, now seen corresponding path program 1 times [2021-10-24 09:46:42,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608137383] [2021-10-24 09:46:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608137383] [2021-10-24 09:46:42,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608137383] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880170658] [2021-10-24 09:46:42,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:42,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,077 INFO L87 Difference]: Start difference. First operand 258 states and 339 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,192 INFO L93 Difference]: Finished difference Result 284 states and 371 transitions. [2021-10-24 09:46:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:42,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 09:46:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,197 INFO L225 Difference]: With dead ends: 284 [2021-10-24 09:46:42,197 INFO L226 Difference]: Without dead ends: 284 [2021-10-24 09:46:42,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-24 09:46:42,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 281. [2021-10-24 09:46:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 261 states have (on average 1.4137931034482758) internal successors, (369), 280 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 369 transitions. [2021-10-24 09:46:42,210 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 369 transitions. Word has length 16 [2021-10-24 09:46:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,210 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 369 transitions. [2021-10-24 09:46:42,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 369 transitions. [2021-10-24 09:46:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 09:46:42,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,212 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 09:46:42,213 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1810210695, now seen corresponding path program 1 times [2021-10-24 09:46:42,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769389795] [2021-10-24 09:46:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,266 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769389795] [2021-10-24 09:46:42,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769389795] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151727485] [2021-10-24 09:46:42,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:42,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,269 INFO L87 Difference]: Start difference. First operand 281 states and 369 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,371 INFO L93 Difference]: Finished difference Result 278 states and 365 transitions. [2021-10-24 09:46:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:42,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 09:46:42,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,374 INFO L225 Difference]: With dead ends: 278 [2021-10-24 09:46:42,374 INFO L226 Difference]: Without dead ends: 278 [2021-10-24 09:46:42,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-24 09:46:42,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-10-24 09:46:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 260 states have (on average 1.4038461538461537) internal successors, (365), 277 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 365 transitions. [2021-10-24 09:46:42,382 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 365 transitions. Word has length 17 [2021-10-24 09:46:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,382 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 365 transitions. [2021-10-24 09:46:42,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 365 transitions. [2021-10-24 09:46:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 09:46:42,383 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,383 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 09:46:42,384 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,385 INFO L82 PathProgramCache]: Analyzing trace with hash 987908141, now seen corresponding path program 1 times [2021-10-24 09:46:42,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100159732] [2021-10-24 09:46:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,421 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100159732] [2021-10-24 09:46:42,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100159732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858190855] [2021-10-24 09:46:42,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:42,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,424 INFO L87 Difference]: Start difference. First operand 278 states and 365 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,540 INFO L93 Difference]: Finished difference Result 266 states and 353 transitions. [2021-10-24 09:46:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:42,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 09:46:42,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,543 INFO L225 Difference]: With dead ends: 266 [2021-10-24 09:46:42,543 INFO L226 Difference]: Without dead ends: 266 [2021-10-24 09:46:42,543 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-24 09:46:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-24 09:46:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 254 states have (on average 1.389763779527559) internal successors, (353), 265 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 353 transitions. [2021-10-24 09:46:42,550 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 353 transitions. Word has length 17 [2021-10-24 09:46:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,551 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 353 transitions. [2021-10-24 09:46:42,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 353 transitions. [2021-10-24 09:46:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 09:46:42,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,552 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 09:46:42,552 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1862900048, now seen corresponding path program 1 times [2021-10-24 09:46:42,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8261638] [2021-10-24 09:46:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,638 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8261638] [2021-10-24 09:46:42,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8261638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789218513] [2021-10-24 09:46:42,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:42,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:42,640 INFO L87 Difference]: Start difference. First operand 266 states and 353 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,765 INFO L93 Difference]: Finished difference Result 269 states and 353 transitions. [2021-10-24 09:46:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 09:46:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,770 INFO L225 Difference]: With dead ends: 269 [2021-10-24 09:46:42,770 INFO L226 Difference]: Without dead ends: 269 [2021-10-24 09:46:42,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-10-24 09:46:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 266. [2021-10-24 09:46:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 254 states have (on average 1.3818897637795275) internal successors, (351), 265 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 351 transitions. [2021-10-24 09:46:42,788 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 351 transitions. Word has length 17 [2021-10-24 09:46:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,788 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 351 transitions. [2021-10-24 09:46:42,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 351 transitions. [2021-10-24 09:46:42,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:46:42,789 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,789 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 09:46:42,791 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1028408025, now seen corresponding path program 1 times [2021-10-24 09:46:42,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952589536] [2021-10-24 09:46:42,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952589536] [2021-10-24 09:46:42,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952589536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293366847] [2021-10-24 09:46:42,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:42,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:42,847 INFO L87 Difference]: Start difference. First operand 266 states and 351 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) [2021-10-24 09:46:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:42,867 INFO L93 Difference]: Finished difference Result 264 states and 338 transitions. [2021-10-24 09:46:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:42,868 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 [2021-10-24 09:46:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:42,870 INFO L225 Difference]: With dead ends: 264 [2021-10-24 09:46:42,870 INFO L226 Difference]: Without dead ends: 264 [2021-10-24 09:46:42,870 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 [2021-10-24 09:46:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-24 09:46:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 250. [2021-10-24 09:46:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 238 states have (on average 1.361344537815126) internal successors, (324), 249 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 324 transitions. [2021-10-24 09:46:42,882 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 324 transitions. Word has length 18 [2021-10-24 09:46:42,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:42,882 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 324 transitions. [2021-10-24 09:46:42,882 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) [2021-10-24 09:46:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 324 transitions. [2021-10-24 09:46:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:46:42,883 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:42,884 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:42,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 09:46:42,884 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:42,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:42,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1382364228, now seen corresponding path program 1 times [2021-10-24 09:46:42,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:42,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609404523] [2021-10-24 09:46:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:42,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:42,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:42,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609404523] [2021-10-24 09:46:42,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609404523] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:42,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:42,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:42,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087210463] [2021-10-24 09:46:42,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:42,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:42,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:42,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:42,936 INFO L87 Difference]: Start difference. First operand 250 states and 324 transitions. Second operand has 4 states, 4 states have (on average 4.5) 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) [2021-10-24 09:46:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,055 INFO L93 Difference]: Finished difference Result 253 states and 324 transitions. [2021-10-24 09:46:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:43,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) 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 [2021-10-24 09:46:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,059 INFO L225 Difference]: With dead ends: 253 [2021-10-24 09:46:43,059 INFO L226 Difference]: Without dead ends: 253 [2021-10-24 09:46:43,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-24 09:46:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2021-10-24 09:46:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 238 states have (on average 1.3529411764705883) internal successors, (322), 249 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 322 transitions. [2021-10-24 09:46:43,065 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 322 transitions. Word has length 18 [2021-10-24 09:46:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,066 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 322 transitions. [2021-10-24 09:46:43,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) 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) [2021-10-24 09:46:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 322 transitions. [2021-10-24 09:46:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:46:43,067 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,067 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:43,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-24 09:46:43,067 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1520196833, now seen corresponding path program 1 times [2021-10-24 09:46:43,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629673224] [2021-10-24 09:46:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629673224] [2021-10-24 09:46:43,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629673224] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:43,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957189368] [2021-10-24 09:46:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:43,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:43,113 INFO L87 Difference]: Start difference. First operand 250 states and 322 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) [2021-10-24 09:46:43,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,230 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2021-10-24 09:46:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:43,231 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 [2021-10-24 09:46:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,233 INFO L225 Difference]: With dead ends: 316 [2021-10-24 09:46:43,233 INFO L226 Difference]: Without dead ends: 316 [2021-10-24 09:46:43,233 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 [2021-10-24 09:46:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-10-24 09:46:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 258. [2021-10-24 09:46:43,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 246 states have (on average 1.3577235772357723) internal successors, (334), 257 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 334 transitions. [2021-10-24 09:46:43,258 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 334 transitions. Word has length 19 [2021-10-24 09:46:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,258 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 334 transitions. [2021-10-24 09:46:43,258 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) [2021-10-24 09:46:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 334 transitions. [2021-10-24 09:46:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:46:43,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,259 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:43,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-24 09:46:43,260 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,260 INFO L82 PathProgramCache]: Analyzing trace with hash -460339961, now seen corresponding path program 1 times [2021-10-24 09:46:43,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966830850] [2021-10-24 09:46:43,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,292 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966830850] [2021-10-24 09:46:43,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966830850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 09:46:43,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584619380] [2021-10-24 09:46:43,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:43,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:43,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:43,294 INFO L87 Difference]: Start difference. First operand 258 states and 334 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-10-24 09:46:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,318 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2021-10-24 09:46:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:43,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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 [2021-10-24 09:46:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,320 INFO L225 Difference]: With dead ends: 269 [2021-10-24 09:46:43,320 INFO L226 Difference]: Without dead ends: 256 [2021-10-24 09:46:43,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-24 09:46:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-10-24 09:46:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 244 states have (on average 1.3565573770491803) internal successors, (331), 255 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 331 transitions. [2021-10-24 09:46:43,327 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 331 transitions. Word has length 19 [2021-10-24 09:46:43,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,327 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 331 transitions. [2021-10-24 09:46:43,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-10-24 09:46:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 331 transitions. [2021-10-24 09:46:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 09:46:43,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,328 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] [2021-10-24 09:46:43,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-24 09:46:43,329 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,329 INFO L82 PathProgramCache]: Analyzing trace with hash -126197454, now seen corresponding path program 1 times [2021-10-24 09:46:43,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569122529] [2021-10-24 09:46:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569122529] [2021-10-24 09:46:43,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569122529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:43,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390410205] [2021-10-24 09:46:43,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:43,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:43,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:43,373 INFO L87 Difference]: Start difference. First operand 256 states and 331 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) 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) [2021-10-24 09:46:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,391 INFO L93 Difference]: Finished difference Result 279 states and 353 transitions. [2021-10-24 09:46:43,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:43,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) 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 [2021-10-24 09:46:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,394 INFO L225 Difference]: With dead ends: 279 [2021-10-24 09:46:43,394 INFO L226 Difference]: Without dead ends: 279 [2021-10-24 09:46:43,396 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 [2021-10-24 09:46:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-10-24 09:46:43,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2021-10-24 09:46:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3319148936170213) internal successors, (313), 243 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 313 transitions. [2021-10-24 09:46:43,403 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 313 transitions. Word has length 20 [2021-10-24 09:46:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,404 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 313 transitions. [2021-10-24 09:46:43,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) 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) [2021-10-24 09:46:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 313 transitions. [2021-10-24 09:46:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 09:46:43,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,406 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] [2021-10-24 09:46:43,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-24 09:46:43,407 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1027665355, now seen corresponding path program 1 times [2021-10-24 09:46:43,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534857828] [2021-10-24 09:46:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534857828] [2021-10-24 09:46:43,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534857828] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:43,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074489373] [2021-10-24 09:46:43,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:43,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:43,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:43,485 INFO L87 Difference]: Start difference. First operand 244 states and 313 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) [2021-10-24 09:46:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,607 INFO L93 Difference]: Finished difference Result 239 states and 305 transitions. [2021-10-24 09:46:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:43,607 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 [2021-10-24 09:46:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,609 INFO L225 Difference]: With dead ends: 239 [2021-10-24 09:46:43,609 INFO L226 Difference]: Without dead ends: 239 [2021-10-24 09:46:43,609 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-10-24 09:46:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-10-24 09:46:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 231 states have (on average 1.3203463203463204) internal successors, (305), 238 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 305 transitions. [2021-10-24 09:46:43,615 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 305 transitions. Word has length 20 [2021-10-24 09:46:43,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,615 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 305 transitions. [2021-10-24 09:46:43,615 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) [2021-10-24 09:46:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 305 transitions. [2021-10-24 09:46:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 09:46:43,616 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,616 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] [2021-10-24 09:46:43,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-24 09:46:43,617 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2082399788, now seen corresponding path program 1 times [2021-10-24 09:46:43,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781514590] [2021-10-24 09:46:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781514590] [2021-10-24 09:46:43,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781514590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:43,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913970402] [2021-10-24 09:46:43,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:43,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:43,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:43,728 INFO L87 Difference]: Start difference. First operand 239 states and 305 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) [2021-10-24 09:46:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,757 INFO L93 Difference]: Finished difference Result 241 states and 300 transitions. [2021-10-24 09:46:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:43,758 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 [2021-10-24 09:46:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,760 INFO L225 Difference]: With dead ends: 241 [2021-10-24 09:46:43,760 INFO L226 Difference]: Without dead ends: 241 [2021-10-24 09:46:43,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-10-24 09:46:43,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 227. [2021-10-24 09:46:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3045454545454545) internal successors, (287), 226 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2021-10-24 09:46:43,766 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 21 [2021-10-24 09:46:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,767 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2021-10-24 09:46:43,767 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) [2021-10-24 09:46:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2021-10-24 09:46:43,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 09:46:43,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,768 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] [2021-10-24 09:46:43,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-24 09:46:43,768 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1978684297, now seen corresponding path program 1 times [2021-10-24 09:46:43,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294618053] [2021-10-24 09:46:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:43,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:43,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294618053] [2021-10-24 09:46:43,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294618053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:43,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:43,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:43,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199973515] [2021-10-24 09:46:43,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:43,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:43,818 INFO L87 Difference]: Start difference. First operand 227 states and 287 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) [2021-10-24 09:46:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:43,958 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2021-10-24 09:46:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:43,959 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 [2021-10-24 09:46:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:43,960 INFO L225 Difference]: With dead ends: 256 [2021-10-24 09:46:43,960 INFO L226 Difference]: Without dead ends: 256 [2021-10-24 09:46:43,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-24 09:46:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2021-10-24 09:46:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.290909090909091) internal successors, (284), 226 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 284 transitions. [2021-10-24 09:46:43,967 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 284 transitions. Word has length 22 [2021-10-24 09:46:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:43,967 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 284 transitions. [2021-10-24 09:46:43,968 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) [2021-10-24 09:46:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2021-10-24 09:46:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 09:46:43,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:43,969 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] [2021-10-24 09:46:43,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-24 09:46:43,969 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:43,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:43,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1612986397, now seen corresponding path program 1 times [2021-10-24 09:46:43,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:43,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944956191] [2021-10-24 09:46:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:43,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:44,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:44,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:44,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944956191] [2021-10-24 09:46:44,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944956191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:44,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:44,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 09:46:44,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427299485] [2021-10-24 09:46:44,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:44,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:44,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:44,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:44,074 INFO L87 Difference]: Start difference. First operand 227 states and 284 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2021-10-24 09:46:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:44,336 INFO L93 Difference]: Finished difference Result 299 states and 374 transitions. [2021-10-24 09:46:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:46:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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 [2021-10-24 09:46:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:44,339 INFO L225 Difference]: With dead ends: 299 [2021-10-24 09:46:44,339 INFO L226 Difference]: Without dead ends: 299 [2021-10-24 09:46:44,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-10-24 09:46:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 227. [2021-10-24 09:46:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.290909090909091) internal successors, (284), 226 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 284 transitions. [2021-10-24 09:46:44,345 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 284 transitions. Word has length 23 [2021-10-24 09:46:44,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:44,345 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 284 transitions. [2021-10-24 09:46:44,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2021-10-24 09:46:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2021-10-24 09:46:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:46:44,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:44,346 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] [2021-10-24 09:46:44,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-24 09:46:44,347 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:44,347 INFO L82 PathProgramCache]: Analyzing trace with hash 211239206, now seen corresponding path program 1 times [2021-10-24 09:46:44,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:44,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597966916] [2021-10-24 09:46:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:44,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:44,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:44,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597966916] [2021-10-24 09:46:44,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597966916] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:44,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:44,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:44,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166583957] [2021-10-24 09:46:44,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:44,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:44,393 INFO L87 Difference]: Start difference. First operand 227 states and 284 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2021-10-24 09:46:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:44,513 INFO L93 Difference]: Finished difference Result 256 states and 311 transitions. [2021-10-24 09:46:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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 [2021-10-24 09:46:44,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:44,515 INFO L225 Difference]: With dead ends: 256 [2021-10-24 09:46:44,515 INFO L226 Difference]: Without dead ends: 256 [2021-10-24 09:46:44,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-24 09:46:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2021-10-24 09:46:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2636363636363637) internal successors, (278), 226 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-10-24 09:46:44,522 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 24 [2021-10-24 09:46:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:44,522 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-10-24 09:46:44,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2021-10-24 09:46:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-10-24 09:46:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:46:44,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:44,524 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] [2021-10-24 09:46:44,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-24 09:46:44,524 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash 255990755, now seen corresponding path program 1 times [2021-10-24 09:46:44,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:44,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292496397] [2021-10-24 09:46:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:44,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:44,563 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:44,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292496397] [2021-10-24 09:46:44,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292496397] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:44,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:44,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:44,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446520300] [2021-10-24 09:46:44,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:44,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:44,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:44,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:44,565 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:44,657 INFO L93 Difference]: Finished difference Result 227 states and 272 transitions. [2021-10-24 09:46:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:44,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 09:46:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:44,659 INFO L225 Difference]: With dead ends: 227 [2021-10-24 09:46:44,659 INFO L226 Difference]: Without dead ends: 227 [2021-10-24 09:46:44,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-24 09:46:44,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-24 09:46:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2363636363636363) internal successors, (272), 226 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2021-10-24 09:46:44,665 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 25 [2021-10-24 09:46:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:44,665 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2021-10-24 09:46:44,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2021-10-24 09:46:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:46:44,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:44,666 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] [2021-10-24 09:46:44,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-24 09:46:44,667 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:44,667 INFO L82 PathProgramCache]: Analyzing trace with hash 2142918319, now seen corresponding path program 1 times [2021-10-24 09:46:44,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:44,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147415925] [2021-10-24 09:46:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:44,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:44,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:44,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147415925] [2021-10-24 09:46:44,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147415925] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:44,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:44,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 09:46:44,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58598914] [2021-10-24 09:46:44,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:44,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:44,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:44,727 INFO L87 Difference]: Start difference. First operand 227 states and 272 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-10-24 09:46:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:44,926 INFO L93 Difference]: Finished difference Result 245 states and 296 transitions. [2021-10-24 09:46:44,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:44,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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 [2021-10-24 09:46:44,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:44,929 INFO L225 Difference]: With dead ends: 245 [2021-10-24 09:46:44,930 INFO L226 Difference]: Without dead ends: 245 [2021-10-24 09:46:44,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-24 09:46:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 227. [2021-10-24 09:46:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2363636363636363) internal successors, (272), 226 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2021-10-24 09:46:44,936 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 25 [2021-10-24 09:46:44,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:44,936 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2021-10-24 09:46:44,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2021-10-24 09:46:44,936 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2021-10-24 09:46:44,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:46:44,937 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:44,937 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] [2021-10-24 09:46:44,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-24 09:46:44,938 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:44,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:44,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1464884705, now seen corresponding path program 1 times [2021-10-24 09:46:44,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:44,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834750736] [2021-10-24 09:46:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:44,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:44,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:44,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834750736] [2021-10-24 09:46:44,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834750736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:44,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:44,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 09:46:44,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413213975] [2021-10-24 09:46:44,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:44,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:44,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:44,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:44,978 INFO L87 Difference]: Start difference. First operand 227 states and 272 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) [2021-10-24 09:46:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,022 INFO L93 Difference]: Finished difference Result 243 states and 287 transitions. [2021-10-24 09:46:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:45,023 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 [2021-10-24 09:46:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,024 INFO L225 Difference]: With dead ends: 243 [2021-10-24 09:46:45,024 INFO L226 Difference]: Without dead ends: 228 [2021-10-24 09:46:45,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:46:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-24 09:46:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2021-10-24 09:46:45,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.224770642201835) internal successors, (267), 224 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 267 transitions. [2021-10-24 09:46:45,030 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 267 transitions. Word has length 26 [2021-10-24 09:46:45,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,031 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 267 transitions. [2021-10-24 09:46:45,031 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) [2021-10-24 09:46:45,031 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 267 transitions. [2021-10-24 09:46:45,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:46:45,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,032 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] [2021-10-24 09:46:45,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-24 09:46:45,032 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash -717299029, now seen corresponding path program 1 times [2021-10-24 09:46:45,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623026584] [2021-10-24 09:46:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623026584] [2021-10-24 09:46:45,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623026584] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:45,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961083885] [2021-10-24 09:46:45,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:45,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:45,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:45,061 INFO L87 Difference]: Start difference. First operand 225 states and 267 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-10-24 09:46:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,123 INFO L93 Difference]: Finished difference Result 224 states and 258 transitions. [2021-10-24 09:46:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:45,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 [2021-10-24 09:46:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,125 INFO L225 Difference]: With dead ends: 224 [2021-10-24 09:46:45,125 INFO L226 Difference]: Without dead ends: 224 [2021-10-24 09:46:45,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-24 09:46:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2021-10-24 09:46:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 212 states have (on average 1.1981132075471699) internal successors, (254), 217 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 254 transitions. [2021-10-24 09:46:45,131 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 254 transitions. Word has length 26 [2021-10-24 09:46:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,132 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 254 transitions. [2021-10-24 09:46:45,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-10-24 09:46:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 254 transitions. [2021-10-24 09:46:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 09:46:45,133 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,133 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] [2021-10-24 09:46:45,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-24 09:46:45,133 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,134 INFO L82 PathProgramCache]: Analyzing trace with hash -628442146, now seen corresponding path program 1 times [2021-10-24 09:46:45,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885831160] [2021-10-24 09:46:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885831160] [2021-10-24 09:46:45,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885831160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 09:46:45,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181099426] [2021-10-24 09:46:45,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:45,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:45,182 INFO L87 Difference]: Start difference. First operand 218 states and 254 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-24 09:46:45,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,252 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2021-10-24 09:46:45,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:45,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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 [2021-10-24 09:46:45,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,254 INFO L225 Difference]: With dead ends: 244 [2021-10-24 09:46:45,255 INFO L226 Difference]: Without dead ends: 244 [2021-10-24 09:46:45,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-24 09:46:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 204. [2021-10-24 09:46:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.195) internal successors, (239), 203 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 239 transitions. [2021-10-24 09:46:45,260 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 239 transitions. Word has length 27 [2021-10-24 09:46:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,260 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 239 transitions. [2021-10-24 09:46:45,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-24 09:46:45,261 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 239 transitions. [2021-10-24 09:46:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 09:46:45,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,262 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] [2021-10-24 09:46:45,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-24 09:46:45,262 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash -743842298, now seen corresponding path program 1 times [2021-10-24 09:46:45,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255492274] [2021-10-24 09:46:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255492274] [2021-10-24 09:46:45,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255492274] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 09:46:45,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264449916] [2021-10-24 09:46:45,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:45,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:45,327 INFO L87 Difference]: Start difference. First operand 204 states and 239 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-24 09:46:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,436 INFO L93 Difference]: Finished difference Result 219 states and 252 transitions. [2021-10-24 09:46:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:46:45,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2021-10-24 09:46:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,438 INFO L225 Difference]: With dead ends: 219 [2021-10-24 09:46:45,438 INFO L226 Difference]: Without dead ends: 218 [2021-10-24 09:46:45,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:46:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-24 09:46:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2021-10-24 09:46:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.1893203883495145) internal successors, (245), 209 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 245 transitions. [2021-10-24 09:46:45,443 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 245 transitions. Word has length 27 [2021-10-24 09:46:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,443 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 245 transitions. [2021-10-24 09:46:45,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-24 09:46:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 245 transitions. [2021-10-24 09:46:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 09:46:45,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,444 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] [2021-10-24 09:46:45,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-24 09:46:45,445 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,445 INFO L82 PathProgramCache]: Analyzing trace with hash -743854214, now seen corresponding path program 1 times [2021-10-24 09:46:45,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952123103] [2021-10-24 09:46:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,486 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952123103] [2021-10-24 09:46:45,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952123103] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:45,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224005890] [2021-10-24 09:46:45,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:45,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:45,488 INFO L87 Difference]: Start difference. First operand 210 states and 245 transitions. Second operand has 4 states, 4 states have (on average 6.75) 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) [2021-10-24 09:46:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,566 INFO L93 Difference]: Finished difference Result 215 states and 247 transitions. [2021-10-24 09:46:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:45,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) 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 [2021-10-24 09:46:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,568 INFO L225 Difference]: With dead ends: 215 [2021-10-24 09:46:45,568 INFO L226 Difference]: Without dead ends: 199 [2021-10-24 09:46:45,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-24 09:46:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2021-10-24 09:46:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.1927083333333333) internal successors, (229), 195 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 229 transitions. [2021-10-24 09:46:45,573 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 229 transitions. Word has length 27 [2021-10-24 09:46:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,573 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 229 transitions. [2021-10-24 09:46:45,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) 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) [2021-10-24 09:46:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 229 transitions. [2021-10-24 09:46:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:46:45,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,575 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] [2021-10-24 09:46:45,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-24 09:46:45,575 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1819865942, now seen corresponding path program 1 times [2021-10-24 09:46:45,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139413705] [2021-10-24 09:46:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139413705] [2021-10-24 09:46:45,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139413705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:45,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114879267] [2021-10-24 09:46:45,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:45,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:45,600 INFO L87 Difference]: Start difference. First operand 196 states and 229 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,613 INFO L93 Difference]: Finished difference Result 196 states and 224 transitions. [2021-10-24 09:46:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:45,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:46:45,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,615 INFO L225 Difference]: With dead ends: 196 [2021-10-24 09:46:45,615 INFO L226 Difference]: Without dead ends: 196 [2021-10-24 09:46:45,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-24 09:46:45,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-10-24 09:46:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 191 states have (on average 1.1675392670157068) internal successors, (223), 194 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 223 transitions. [2021-10-24 09:46:45,620 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 223 transitions. Word has length 28 [2021-10-24 09:46:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,621 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 223 transitions. [2021-10-24 09:46:45,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 223 transitions. [2021-10-24 09:46:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 09:46:45,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,622 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] [2021-10-24 09:46:45,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-24 09:46:45,622 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,623 INFO L82 PathProgramCache]: Analyzing trace with hash 985700340, now seen corresponding path program 1 times [2021-10-24 09:46:45,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567517787] [2021-10-24 09:46:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,652 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567517787] [2021-10-24 09:46:45,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567517787] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 09:46:45,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586301515] [2021-10-24 09:46:45,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:45,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:45,654 INFO L87 Difference]: Start difference. First operand 195 states and 223 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) [2021-10-24 09:46:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,676 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2021-10-24 09:46:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:45,676 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 [2021-10-24 09:46:45,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,678 INFO L225 Difference]: With dead ends: 183 [2021-10-24 09:46:45,678 INFO L226 Difference]: Without dead ends: 183 [2021-10-24 09:46:45,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-24 09:46:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-10-24 09:46:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 179 states have (on average 1.1731843575418994) internal successors, (210), 182 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 210 transitions. [2021-10-24 09:46:45,682 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 210 transitions. Word has length 30 [2021-10-24 09:46:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,683 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 210 transitions. [2021-10-24 09:46:45,683 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) [2021-10-24 09:46:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 210 transitions. [2021-10-24 09:46:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 09:46:45,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,684 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] [2021-10-24 09:46:45,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-24 09:46:45,684 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash 525809405, now seen corresponding path program 1 times [2021-10-24 09:46:45,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814539124] [2021-10-24 09:46:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814539124] [2021-10-24 09:46:45,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814539124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 09:46:45,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990741478] [2021-10-24 09:46:45,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:45,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:45,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:45,724 INFO L87 Difference]: Start difference. First operand 183 states and 210 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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) [2021-10-24 09:46:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:45,836 INFO L93 Difference]: Finished difference Result 197 states and 223 transitions. [2021-10-24 09:46:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:46:45,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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 [2021-10-24 09:46:45,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:45,838 INFO L225 Difference]: With dead ends: 197 [2021-10-24 09:46:45,838 INFO L226 Difference]: Without dead ends: 153 [2021-10-24 09:46:45,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:46:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-24 09:46:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 137. [2021-10-24 09:46:45,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 136 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:45,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2021-10-24 09:46:45,843 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 30 [2021-10-24 09:46:45,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:45,843 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2021-10-24 09:46:45,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 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) [2021-10-24 09:46:45,844 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2021-10-24 09:46:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:46:45,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:45,845 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] [2021-10-24 09:46:45,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-24 09:46:45,845 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:45,846 INFO L82 PathProgramCache]: Analyzing trace with hash -362549313, now seen corresponding path program 1 times [2021-10-24 09:46:45,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:45,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2864757] [2021-10-24 09:46:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:45,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:45,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:45,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2864757] [2021-10-24 09:46:45,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2864757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:45,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:45,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-24 09:46:45,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062536212] [2021-10-24 09:46:45,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 09:46:45,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:45,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 09:46:45,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:46:45,961 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,189 INFO L93 Difference]: Finished difference Result 174 states and 206 transitions. [2021-10-24 09:46:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 09:46:46,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:46:46,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,191 INFO L225 Difference]: With dead ends: 174 [2021-10-24 09:46:46,191 INFO L226 Difference]: Without dead ends: 174 [2021-10-24 09:46:46,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 87.9ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-24 09:46:46,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-24 09:46:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 137. [2021-10-24 09:46:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 136 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2021-10-24 09:46:46,195 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 33 [2021-10-24 09:46:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,195 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2021-10-24 09:46:46,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2021-10-24 09:46:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 09:46:46,196 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,196 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] [2021-10-24 09:46:46,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-24 09:46:46,197 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,198 INFO L82 PathProgramCache]: Analyzing trace with hash 921365570, now seen corresponding path program 1 times [2021-10-24 09:46:46,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:46,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555959102] [2021-10-24 09:46:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:46,281 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:46,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555959102] [2021-10-24 09:46:46,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555959102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:46,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:46,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 09:46:46,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782564610] [2021-10-24 09:46:46,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:46,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:46,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:46,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:46,283 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,381 INFO L93 Difference]: Finished difference Result 168 states and 203 transitions. [2021-10-24 09:46:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 09:46:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,383 INFO L225 Difference]: With dead ends: 168 [2021-10-24 09:46:46,383 INFO L226 Difference]: Without dead ends: 168 [2021-10-24 09:46:46,384 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-10-24 09:46:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 123. [2021-10-24 09:46:46,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.1735537190082646) internal successors, (142), 122 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2021-10-24 09:46:46,389 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 36 [2021-10-24 09:46:46,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,389 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2021-10-24 09:46:46,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2021-10-24 09:46:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 09:46:46,390 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,390 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] [2021-10-24 09:46:46,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-24 09:46:46,391 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:46,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2012979242, now seen corresponding path program 1 times [2021-10-24 09:46:46,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:46,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897006973] [2021-10-24 09:46:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:46,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:46,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897006973] [2021-10-24 09:46:46,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897006973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:46,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:46,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 09:46:46,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715113352] [2021-10-24 09:46:46,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:46,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:46,469 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,545 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2021-10-24 09:46:46,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:46:46,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 09:46:46,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,547 INFO L225 Difference]: With dead ends: 141 [2021-10-24 09:46:46,547 INFO L226 Difference]: Without dead ends: 125 [2021-10-24 09:46:46,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:46:46,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-24 09:46:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-24 09:46:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1626016260162602) internal successors, (143), 124 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2021-10-24 09:46:46,552 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 37 [2021-10-24 09:46:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,552 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2021-10-24 09:46:46,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2021-10-24 09:46:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 09:46:46,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,553 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] [2021-10-24 09:46:46,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-24 09:46:46,555 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:46,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,555 INFO L82 PathProgramCache]: Analyzing trace with hash 911798761, now seen corresponding path program 1 times [2021-10-24 09:46:46,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:46,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099281683] [2021-10-24 09:46:46,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:46,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:46,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099281683] [2021-10-24 09:46:46,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099281683] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:46,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:46,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 09:46:46,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545437747] [2021-10-24 09:46:46,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:46,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:46,638 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,741 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2021-10-24 09:46:46,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:46:46,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 09:46:46,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,742 INFO L225 Difference]: With dead ends: 139 [2021-10-24 09:46:46,742 INFO L226 Difference]: Without dead ends: 125 [2021-10-24 09:46:46,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 81.9ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-24 09:46:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-24 09:46:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-24 09:46:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1544715447154472) internal successors, (142), 124 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2021-10-24 09:46:46,746 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 37 [2021-10-24 09:46:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,746 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2021-10-24 09:46:46,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2021-10-24 09:46:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-24 09:46:46,747 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,748 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, 1] [2021-10-24 09:46:46,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-24 09:46:46,761 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,762 INFO L82 PathProgramCache]: Analyzing trace with hash 48951965, now seen corresponding path program 1 times [2021-10-24 09:46:46,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:46,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990498186] [2021-10-24 09:46:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:46,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:46:46,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990498186] [2021-10-24 09:46:46,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990498186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:46,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:46,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 09:46:46,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246213227] [2021-10-24 09:46:46,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:46,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:46:46,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:46,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:46,807 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,820 INFO L93 Difference]: Finished difference Result 155 states and 172 transitions. [2021-10-24 09:46:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-24 09:46:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,821 INFO L225 Difference]: With dead ends: 155 [2021-10-24 09:46:46,822 INFO L226 Difference]: Without dead ends: 155 [2021-10-24 09:46:46,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-24 09:46:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 125. [2021-10-24 09:46:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1300813008130082) internal successors, (139), 124 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2021-10-24 09:46:46,825 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 38 [2021-10-24 09:46:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,826 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2021-10-24 09:46:46,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2021-10-24 09:46:46,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 09:46:46,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,827 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, 1, 1] [2021-10-24 09:46:46,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-24 09:46:46,827 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:46,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,828 INFO L82 PathProgramCache]: Analyzing trace with hash 951085687, now seen corresponding path program 1 times [2021-10-24 09:46:46,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:46:46,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348279450] [2021-10-24 09:46:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:46:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:46:46,846 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:46:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:46:46,913 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 09:46:46,913 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:46:46,914 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:46:46,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-24 09:46:46,932 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:46:47,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:46:47 BoogieIcfgContainer [2021-10-24 09:46:47,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:46:47,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:46:47,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:46:47,027 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:46:47,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:40" (3/4) ... [2021-10-24 09:46:47,031 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 09:46:47,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:46:47,032 INFO L168 Benchmark]: Toolchain (without parser) took 9777.56 ms. Allocated memory was 96.5 MB in the beginning and 186.6 MB in the end (delta: 90.2 MB). Free memory was 62.3 MB in the beginning and 117.7 MB in the end (delta: -55.5 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,033 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 53.6 MB in the end (delta: 43.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:46:47,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.81 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.1 MB in the beginning and 84.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.80 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 75.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,034 INFO L168 Benchmark]: Boogie Preprocessor took 119.81 ms. Allocated memory is still 117.4 MB. Free memory was 75.9 MB in the beginning and 71.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,034 INFO L168 Benchmark]: RCFGBuilder took 2352.65 ms. Allocated memory is still 117.4 MB. Free memory was 71.4 MB in the beginning and 52.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,035 INFO L168 Benchmark]: TraceAbstraction took 6453.43 ms. Allocated memory was 117.4 MB in the beginning and 186.6 MB in the end (delta: 69.2 MB). Free memory was 52.5 MB in the beginning and 117.7 MB in the end (delta: -65.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:47,035 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 186.6 MB. Free memory is still 117.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:46:47,037 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 96.5 MB. Free memory was 53.7 MB in the beginning and 53.6 MB in the end (delta: 43.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 698.81 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.1 MB in the beginning and 84.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.80 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 75.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.81 ms. Allocated memory is still 117.4 MB. Free memory was 75.9 MB in the beginning and 71.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2352.65 ms. Allocated memory is still 117.4 MB. Free memory was 71.4 MB in the beginning and 52.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6453.43 ms. Allocated memory was 117.4 MB in the beginning and 186.6 MB in the end (delta: 69.2 MB). Free memory was 52.5 MB in the beginning and 117.7 MB in the end (delta: -65.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 186.6 MB. Free memory is still 117.7 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ [L196] COND TRUE PagingReferenceCount == 1 [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L [L1036] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1045] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1049] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 [L1064] return (0); [L268] COND TRUE disketteExtension__FloppyThread != 0 [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 [L970] returnVal2 = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1006] return (returnVal2); [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- [L431] COND TRUE PagingReferenceCount == 0 [L434] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 670]: 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, 259 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 6306.5ms, OverallIterations: 36, TraceHistogramMax: 1, EmptinessCheckTime: 44.9ms, AutomataDifference: 3305.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7436 SDtfs, 5179 SDslu, 6809 SDs, 0 SdLazy, 2739 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1906.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 529.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=7, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 324.8ms AutomataMinimizationTime, 35 MinimizatonAttempts, 612 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.1ms SsaConstructionTime, 570.4ms SatisfiabilityAnalysisTime, 1365.8ms InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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 [2021-10-24 09:46:47,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/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 [2021-10-24 09:46:49,589 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-24 09:46:49,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:46:49,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:46:49,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:46:49,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 09:46:49,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:46:49,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:46:49,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:46:49,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:46:49,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:46:49,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:46:49,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:46:49,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:46:49,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:46:49,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 09:46:49,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 09:46:49,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:46:49,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:46:49,780 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 09:46:49,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:46:49,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:46:49,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:46:49,781 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 09:46:49,781 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 09:46:49,781 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 09:46:49,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:46:49,782 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:46:49,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:46:49,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:46:49,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:46:49,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:46:49,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:46:49,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:46:49,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:46:49,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:49,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:46:49,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:46:49,785 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:46:49,785 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:46:49,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:46:49,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:46:49,786 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_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-10-24 09:46:50,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:46:50,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:46:50,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:46:50,192 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:46:50,192 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:46:50,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-24 09:46:50,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/f74236e83/41d56f20431c44c38ebc17683cb2a206/FLAG0700a0a7a [2021-10-24 09:46:50,878 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:46:50,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-24 09:46:50,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/f74236e83/41d56f20431c44c38ebc17683cb2a206/FLAG0700a0a7a [2021-10-24 09:46:51,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/data/f74236e83/41d56f20431c44c38ebc17683cb2a206 [2021-10-24 09:46:51,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:46:51,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:46:51,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:51,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:46:51,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:46:51,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7516a71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51, skipping insertion in model container [2021-10-24 09:46:51,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:46:51,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:46:51,432 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_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-24 09:46:51,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:51,546 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:46:51,562 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_f51f7126-4baf-4954-be9e-7b4998488100/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-24 09:46:51,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:51,678 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:46:51,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51 WrapperNode [2021-10-24 09:46:51,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:51,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:51,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:46:51,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:46:51,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:51,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:46:51,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:46:51,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:46:51,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:46:51,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:46:51,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:46:51,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:46:51,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (1/1) ... [2021-10-24 09:46:51,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:52,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:46:52,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:46:52,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:46:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:46:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:46:52,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:46:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:46:52,359 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,373 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,382 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,414 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,415 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,418 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,420 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,423 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,425 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,425 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,428 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,433 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,435 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,437 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,440 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,443 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,447 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,452 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,456 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,459 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,463 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,464 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,464 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:52,466 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 09:46:53,486 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2021-10-24 09:46:53,486 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2021-10-24 09:46:53,486 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-10-24 09:46:53,486 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-10-24 09:46:53,487 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-10-24 09:46:53,488 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-10-24 09:46:53,488 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-24 09:46:53,488 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-24 09:46:53,488 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2021-10-24 09:46:53,488 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2021-10-24 09:46:53,489 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-10-24 09:46:53,490 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-10-24 09:46:53,491 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2021-10-24 09:46:53,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-10-24 09:46:53,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-10-24 09:46:53,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2021-10-24 09:46:53,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2021-10-24 09:46:53,492 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-24 09:46:53,493 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2021-10-24 09:46:53,493 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-24 09:46:53,493 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-10-24 09:46:53,493 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-10-24 09:46:53,494 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-10-24 09:46:53,494 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-10-24 09:46:53,494 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2021-10-24 09:46:53,494 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2021-10-24 09:46:53,494 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2021-10-24 09:46:53,495 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2021-10-24 09:46:53,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:46:53,518 INFO L299 CfgBuilder]: Removed 207 assume(true) statements. [2021-10-24 09:46:53,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:53 BoogieIcfgContainer [2021-10-24 09:46:53,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:46:53,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:46:53,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:46:53,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:46:53,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:46:51" (1/3) ... [2021-10-24 09:46:53,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121d2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:53, skipping insertion in model container [2021-10-24 09:46:53,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:51" (2/3) ... [2021-10-24 09:46:53,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121d2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:53, skipping insertion in model container [2021-10-24 09:46:53,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:53" (3/3) ... [2021-10-24 09:46:53,532 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-24 09:46:53,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:46:53,537 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-10-24 09:46:53,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:46:53,586 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 [2021-10-24 09:46:53,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-24 09:46:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 379 states have (on average 1.5936675461741425) internal successors, (604), 421 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 09:46:53,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:53,617 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:53,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:53,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1805892451, now seen corresponding path program 1 times [2021-10-24 09:46:53,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:53,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711113789] [2021-10-24 09:46:53,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:53,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:53,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:53,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:53,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:46:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:53,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:53,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:53,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:53,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:53,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711113789] [2021-10-24 09:46:53,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711113789] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:53,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:53,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:46:53,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41275854] [2021-10-24 09:46:53,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:53,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:54,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:54,008 INFO L87 Difference]: Start difference. First operand has 422 states, 379 states have (on average 1.5936675461741425) internal successors, (604), 421 states have internal predecessors, (604), 0 states have call successors, (0), 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) [2021-10-24 09:46:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:54,127 INFO L93 Difference]: Finished difference Result 423 states and 560 transitions. [2021-10-24 09:46:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:54,129 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 [2021-10-24 09:46:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:54,155 INFO L225 Difference]: With dead ends: 423 [2021-10-24 09:46:54,155 INFO L226 Difference]: Without dead ends: 421 [2021-10-24 09:46:54,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:54,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-24 09:46:54,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2021-10-24 09:46:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 378 states have (on average 1.4735449735449735) internal successors, (557), 419 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 557 transitions. [2021-10-24 09:46:54,241 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 557 transitions. Word has length 7 [2021-10-24 09:46:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:54,241 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 557 transitions. [2021-10-24 09:46:54,241 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) [2021-10-24 09:46:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 557 transitions. [2021-10-24 09:46:54,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 09:46:54,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:54,243 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:54,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 09:46:54,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:54,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:54,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:54,459 INFO L82 PathProgramCache]: Analyzing trace with hash 294498135, now seen corresponding path program 1 times [2021-10-24 09:46:54,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:54,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059754592] [2021-10-24 09:46:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:54,466 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:54,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:54,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:54,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:46:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:54,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:54,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:54,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:54,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:54,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059754592] [2021-10-24 09:46:54,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059754592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:54,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:54,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:46:54,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073716867] [2021-10-24 09:46:54,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:54,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:54,693 INFO L87 Difference]: Start difference. First operand 420 states and 557 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2021-10-24 09:46:54,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:54,718 INFO L93 Difference]: Finished difference Result 419 states and 556 transitions. [2021-10-24 09:46:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:54,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2021-10-24 09:46:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:54,723 INFO L225 Difference]: With dead ends: 419 [2021-10-24 09:46:54,723 INFO L226 Difference]: Without dead ends: 416 [2021-10-24 09:46:54,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:54,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-10-24 09:46:54,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2021-10-24 09:46:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 375 states have (on average 1.456) internal successors, (546), 415 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 546 transitions. [2021-10-24 09:46:54,742 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 546 transitions. Word has length 9 [2021-10-24 09:46:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:54,742 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 546 transitions. [2021-10-24 09:46:54,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2021-10-24 09:46:54,743 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 546 transitions. [2021-10-24 09:46:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 09:46:54,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:54,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:54,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:54,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:54,958 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:54,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:54,959 INFO L82 PathProgramCache]: Analyzing trace with hash -32433196, now seen corresponding path program 1 times [2021-10-24 09:46:54,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:54,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555882044] [2021-10-24 09:46:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:54,960 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:54,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:46:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:55,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:46:55,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:55,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:55,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:55,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555882044] [2021-10-24 09:46:55,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555882044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:55,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:55,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:55,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911346141] [2021-10-24 09:46:55,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:55,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:55,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:55,195 INFO L87 Difference]: Start difference. First operand 416 states and 546 transitions. Second operand has 4 states, 4 states have (on average 3.25) 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) [2021-10-24 09:46:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:55,255 INFO L93 Difference]: Finished difference Result 573 states and 739 transitions. [2021-10-24 09:46:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:46:55,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) 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 [2021-10-24 09:46:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:55,259 INFO L225 Difference]: With dead ends: 573 [2021-10-24 09:46:55,259 INFO L226 Difference]: Without dead ends: 573 [2021-10-24 09:46:55,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:55,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-24 09:46:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 469. [2021-10-24 09:46:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 428 states have (on average 1.4532710280373833) internal successors, (622), 468 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 622 transitions. [2021-10-24 09:46:55,275 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 622 transitions. Word has length 13 [2021-10-24 09:46:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:55,275 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 622 transitions. [2021-10-24 09:46:55,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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) [2021-10-24 09:46:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 622 transitions. [2021-10-24 09:46:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 09:46:55,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:55,277 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:55,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:55,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:55,488 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:55,488 INFO L82 PathProgramCache]: Analyzing trace with hash -34280238, now seen corresponding path program 1 times [2021-10-24 09:46:55,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:55,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961168952] [2021-10-24 09:46:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:55,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:55,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:55,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:55,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:46:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:55,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:55,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:55,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:55,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:55,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961168952] [2021-10-24 09:46:55,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961168952] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:55,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:55,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:55,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375042564] [2021-10-24 09:46:55,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:55,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:55,738 INFO L87 Difference]: Start difference. First operand 469 states and 622 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) [2021-10-24 09:46:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:56,043 INFO L93 Difference]: Finished difference Result 605 states and 801 transitions. [2021-10-24 09:46:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:56,044 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 [2021-10-24 09:46:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:56,046 INFO L225 Difference]: With dead ends: 605 [2021-10-24 09:46:56,046 INFO L226 Difference]: Without dead ends: 604 [2021-10-24 09:46:56,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:56,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-24 09:46:56,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 578. [2021-10-24 09:46:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 549 states have (on average 1.4116575591985427) internal successors, (775), 577 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 775 transitions. [2021-10-24 09:46:56,063 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 775 transitions. Word has length 13 [2021-10-24 09:46:56,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:56,063 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 775 transitions. [2021-10-24 09:46:56,064 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) [2021-10-24 09:46:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 775 transitions. [2021-10-24 09:46:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 09:46:56,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:56,065 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:56,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:56,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,278 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:56,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1372974563, now seen corresponding path program 1 times [2021-10-24 09:46:56,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:56,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564940991] [2021-10-24 09:46:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:56,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:56,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:56,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:46:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:56,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:56,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:56,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:56,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:56,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564940991] [2021-10-24 09:46:56,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564940991] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:56,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:56,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:56,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443830678] [2021-10-24 09:46:56,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:56,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:56,578 INFO L87 Difference]: Start difference. First operand 578 states and 775 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:56,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:56,637 INFO L93 Difference]: Finished difference Result 743 states and 992 transitions. [2021-10-24 09:46:56,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 09:46:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:56,642 INFO L225 Difference]: With dead ends: 743 [2021-10-24 09:46:56,643 INFO L226 Difference]: Without dead ends: 743 [2021-10-24 09:46:56,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-10-24 09:46:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 572. [2021-10-24 09:46:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 551 states have (on average 1.3920145190562614) internal successors, (767), 571 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 767 transitions. [2021-10-24 09:46:56,667 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 767 transitions. Word has length 16 [2021-10-24 09:46:56,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:56,667 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 767 transitions. [2021-10-24 09:46:56,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 767 transitions. [2021-10-24 09:46:56,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:46:56,669 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:56,669 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:56,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:56,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:56,884 INFO L82 PathProgramCache]: Analyzing trace with hash -694257974, now seen corresponding path program 1 times [2021-10-24 09:46:56,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:56,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471524462] [2021-10-24 09:46:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:56,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:56,887 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:56,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 09:46:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:57,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:57,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:57,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:57,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:57,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471524462] [2021-10-24 09:46:57,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471524462] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:57,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:57,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:57,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955962694] [2021-10-24 09:46:57,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:57,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:57,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:57,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:57,182 INFO L87 Difference]: Start difference. First operand 572 states and 767 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) [2021-10-24 09:46:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:57,224 INFO L93 Difference]: Finished difference Result 666 states and 887 transitions. [2021-10-24 09:46:57,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:57,225 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 [2021-10-24 09:46:57,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:57,229 INFO L225 Difference]: With dead ends: 666 [2021-10-24 09:46:57,229 INFO L226 Difference]: Without dead ends: 666 [2021-10-24 09:46:57,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-24 09:46:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 621. [2021-10-24 09:46:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 601 states have (on average 1.399334442595674) internal successors, (841), 620 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 841 transitions. [2021-10-24 09:46:57,252 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 841 transitions. Word has length 19 [2021-10-24 09:46:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:57,253 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 841 transitions. [2021-10-24 09:46:57,253 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) [2021-10-24 09:46:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 841 transitions. [2021-10-24 09:46:57,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 09:46:57,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:57,255 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] [2021-10-24 09:46:57,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:57,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:57,467 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:57,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:57,468 INFO L82 PathProgramCache]: Analyzing trace with hash 560469428, now seen corresponding path program 1 times [2021-10-24 09:46:57,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:57,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818804150] [2021-10-24 09:46:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:57,468 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:57,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:57,469 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:57,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 09:46:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:57,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:46:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:57,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:57,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:57,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818804150] [2021-10-24 09:46:57,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818804150] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:57,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:57,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:46:57,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938297740] [2021-10-24 09:46:57,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:57,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:57,784 INFO L87 Difference]: Start difference. First operand 621 states and 841 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-24 09:46:57,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:57,834 INFO L93 Difference]: Finished difference Result 685 states and 903 transitions. [2021-10-24 09:46:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:46:57,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 22 [2021-10-24 09:46:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:57,839 INFO L225 Difference]: With dead ends: 685 [2021-10-24 09:46:57,839 INFO L226 Difference]: Without dead ends: 685 [2021-10-24 09:46:57,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:46:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-10-24 09:46:57,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 597. [2021-10-24 09:46:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 577 states have (on average 1.3934142114384749) internal successors, (804), 596 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 804 transitions. [2021-10-24 09:46:57,854 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 804 transitions. Word has length 22 [2021-10-24 09:46:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:57,855 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 804 transitions. [2021-10-24 09:46:57,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-24 09:46:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 804 transitions. [2021-10-24 09:46:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 09:46:57,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:57,857 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] [2021-10-24 09:46:57,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:58,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,069 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1375358907, now seen corresponding path program 1 times [2021-10-24 09:46:58,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:58,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578872786] [2021-10-24 09:46:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:58,071 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:58,072 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:58,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 09:46:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:58,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:58,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:58,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:58,351 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:58,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578872786] [2021-10-24 09:46:58,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578872786] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:58,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:58,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:58,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809719037] [2021-10-24 09:46:58,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:58,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:58,358 INFO L87 Difference]: Start difference. First operand 597 states and 804 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) [2021-10-24 09:46:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:58,566 INFO L93 Difference]: Finished difference Result 631 states and 846 transitions. [2021-10-24 09:46:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:58,567 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 [2021-10-24 09:46:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:58,570 INFO L225 Difference]: With dead ends: 631 [2021-10-24 09:46:58,571 INFO L226 Difference]: Without dead ends: 631 [2021-10-24 09:46:58,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-10-24 09:46:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 628. [2021-10-24 09:46:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.388157894736842) internal successors, (844), 627 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 844 transitions. [2021-10-24 09:46:58,588 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 844 transitions. Word has length 22 [2021-10-24 09:46:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:58,588 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 844 transitions. [2021-10-24 09:46:58,589 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) [2021-10-24 09:46:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 844 transitions. [2021-10-24 09:46:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 09:46:58,590 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:58,590 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] [2021-10-24 09:46:58,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:58,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,805 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:58,806 INFO L82 PathProgramCache]: Analyzing trace with hash -295967638, now seen corresponding path program 1 times [2021-10-24 09:46:58,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:58,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995840785] [2021-10-24 09:46:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:58,807 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:58,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:58,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 09:46:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:58,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:46:58,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:59,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:59,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:59,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995840785] [2021-10-24 09:46:59,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995840785] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:59,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:59,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:46:59,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603389924] [2021-10-24 09:46:59,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:59,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:59,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:59,299 INFO L87 Difference]: Start difference. First operand 628 states and 844 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:59,611 INFO L93 Difference]: Finished difference Result 640 states and 853 transitions. [2021-10-24 09:46:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:59,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:46:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:59,615 INFO L225 Difference]: With dead ends: 640 [2021-10-24 09:46:59,615 INFO L226 Difference]: Without dead ends: 640 [2021-10-24 09:46:59,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.4ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:46:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-10-24 09:46:59,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 628. [2021-10-24 09:46:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.3848684210526316) internal successors, (842), 627 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 842 transitions. [2021-10-24 09:46:59,629 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 842 transitions. Word has length 23 [2021-10-24 09:46:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:59,629 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 842 transitions. [2021-10-24 09:46:59,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 842 transitions. [2021-10-24 09:46:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:46:59,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:59,631 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] [2021-10-24 09:46:59,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:59,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:59,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:46:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:59,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1118024598, now seen corresponding path program 1 times [2021-10-24 09:46:59,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:59,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127910728] [2021-10-24 09:46:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:59,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:59,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:59,845 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:59,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 09:47:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:00,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:00,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:00,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:00,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:00,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127910728] [2021-10-24 09:47:00,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127910728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:00,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:00,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:00,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243477717] [2021-10-24 09:47:00,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:00,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:00,350 INFO L87 Difference]: Start difference. First operand 628 states and 842 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:00,644 INFO L93 Difference]: Finished difference Result 631 states and 842 transitions. [2021-10-24 09:47:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:00,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:00,649 INFO L225 Difference]: With dead ends: 631 [2021-10-24 09:47:00,649 INFO L226 Difference]: Without dead ends: 631 [2021-10-24 09:47:00,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 41.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:00,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-10-24 09:47:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 628. [2021-10-24 09:47:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.381578947368421) internal successors, (840), 627 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 840 transitions. [2021-10-24 09:47:00,666 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 840 transitions. Word has length 24 [2021-10-24 09:47:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:00,666 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 840 transitions. [2021-10-24 09:47:00,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:00,667 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 840 transitions. [2021-10-24 09:47:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:47:00,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:00,668 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] [2021-10-24 09:47:00,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:00,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:00,880 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:00,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1539134309, now seen corresponding path program 1 times [2021-10-24 09:47:00,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:00,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486388387] [2021-10-24 09:47:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:00,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:00,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:00,882 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:00,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 09:47:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:01,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:01,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:01,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:01,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:01,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486388387] [2021-10-24 09:47:01,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486388387] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:01,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:01,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:01,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031363094] [2021-10-24 09:47:01,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:01,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:01,380 INFO L87 Difference]: Start difference. First operand 628 states and 840 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) [2021-10-24 09:47:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:01,761 INFO L93 Difference]: Finished difference Result 782 states and 1018 transitions. [2021-10-24 09:47:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:01,761 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 25 [2021-10-24 09:47:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:01,766 INFO L225 Difference]: With dead ends: 782 [2021-10-24 09:47:01,766 INFO L226 Difference]: Without dead ends: 782 [2021-10-24 09:47:01,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:01,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-10-24 09:47:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 628. [2021-10-24 09:47:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 609 states have (on average 1.3579638752052545) internal successors, (827), 627 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 827 transitions. [2021-10-24 09:47:01,781 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 827 transitions. Word has length 25 [2021-10-24 09:47:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:01,782 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 827 transitions. [2021-10-24 09:47:01,782 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) [2021-10-24 09:47:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 827 transitions. [2021-10-24 09:47:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:47:01,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:01,783 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] [2021-10-24 09:47:01,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:01,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:01,999 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:01,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:01,999 INFO L82 PathProgramCache]: Analyzing trace with hash 404337224, now seen corresponding path program 1 times [2021-10-24 09:47:02,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:02,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765733679] [2021-10-24 09:47:02,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:02,000 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:02,001 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:02,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 09:47:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:02,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:02,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:02,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:02,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:02,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765733679] [2021-10-24 09:47:02,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765733679] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:02,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:02,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:02,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816015943] [2021-10-24 09:47:02,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:02,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:02,346 INFO L87 Difference]: Start difference. First operand 628 states and 827 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:02,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:02,520 INFO L93 Difference]: Finished difference Result 616 states and 813 transitions. [2021-10-24 09:47:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:02,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 09:47:02,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:02,523 INFO L225 Difference]: With dead ends: 616 [2021-10-24 09:47:02,524 INFO L226 Difference]: Without dead ends: 616 [2021-10-24 09:47:02,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-10-24 09:47:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-10-24 09:47:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 603 states have (on average 1.3482587064676617) internal successors, (813), 615 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 813 transitions. [2021-10-24 09:47:02,543 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 813 transitions. Word has length 25 [2021-10-24 09:47:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:02,545 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 813 transitions. [2021-10-24 09:47:02,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 813 transitions. [2021-10-24 09:47:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:47:02,546 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:02,546 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] [2021-10-24 09:47:02,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:02,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:02,753 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:02,753 INFO L82 PathProgramCache]: Analyzing trace with hash -662982239, now seen corresponding path program 1 times [2021-10-24 09:47:02,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:02,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528516468] [2021-10-24 09:47:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:02,754 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:02,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:02,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:02,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-24 09:47:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:02,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:47:02,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:03,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:03,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:03,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528516468] [2021-10-24 09:47:03,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528516468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:03,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:03,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:03,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581510379] [2021-10-24 09:47:03,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:03,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:03,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:03,093 INFO L87 Difference]: Start difference. First operand 616 states and 813 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:03,153 INFO L93 Difference]: Finished difference Result 627 states and 823 transitions. [2021-10-24 09:47:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:03,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:03,157 INFO L225 Difference]: With dead ends: 627 [2021-10-24 09:47:03,157 INFO L226 Difference]: Without dead ends: 614 [2021-10-24 09:47:03,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-10-24 09:47:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2021-10-24 09:47:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 601 states have (on average 1.3477537437603992) internal successors, (810), 613 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 810 transitions. [2021-10-24 09:47:03,174 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 810 transitions. Word has length 25 [2021-10-24 09:47:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:03,174 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 810 transitions. [2021-10-24 09:47:03,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 810 transitions. [2021-10-24 09:47:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:47:03,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:03,177 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] [2021-10-24 09:47:03,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:03,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:03,392 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:03,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:03,393 INFO L82 PathProgramCache]: Analyzing trace with hash -126977650, now seen corresponding path program 1 times [2021-10-24 09:47:03,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:03,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533673850] [2021-10-24 09:47:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:03,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:03,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:03,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:03,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 09:47:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:03,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:03,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:03,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:03,827 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:03,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533673850] [2021-10-24 09:47:03,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533673850] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:03,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:03,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:03,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901477609] [2021-10-24 09:47:03,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:03,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:03,836 INFO L87 Difference]: Start difference. First operand 614 states and 810 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:04,002 INFO L93 Difference]: Finished difference Result 616 states and 813 transitions. [2021-10-24 09:47:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:04,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:04,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:04,006 INFO L225 Difference]: With dead ends: 616 [2021-10-24 09:47:04,006 INFO L226 Difference]: Without dead ends: 616 [2021-10-24 09:47:04,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-10-24 09:47:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-10-24 09:47:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 605 states have (on average 1.343801652892562) internal successors, (813), 615 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 813 transitions. [2021-10-24 09:47:04,021 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 813 transitions. Word has length 28 [2021-10-24 09:47:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:04,021 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 813 transitions. [2021-10-24 09:47:04,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 813 transitions. [2021-10-24 09:47:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 09:47:04,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:04,023 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] [2021-10-24 09:47:04,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:04,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:04,232 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:04,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1735454047, now seen corresponding path program 1 times [2021-10-24 09:47:04,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:04,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085306384] [2021-10-24 09:47:04,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:04,233 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:04,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:04,234 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:04,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-24 09:47:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:04,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:04,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:04,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:04,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:04,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085306384] [2021-10-24 09:47:04,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085306384] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:04,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:04,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:04,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732113752] [2021-10-24 09:47:04,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:04,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:04,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:04,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:04,581 INFO L87 Difference]: Start difference. First operand 616 states and 813 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:04,644 INFO L93 Difference]: Finished difference Result 592 states and 770 transitions. [2021-10-24 09:47:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:04,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-24 09:47:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:04,648 INFO L225 Difference]: With dead ends: 592 [2021-10-24 09:47:04,649 INFO L226 Difference]: Without dead ends: 592 [2021-10-24 09:47:04,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:04,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-10-24 09:47:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 576. [2021-10-24 09:47:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 565 states have (on average 1.336283185840708) internal successors, (755), 575 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 755 transitions. [2021-10-24 09:47:04,664 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 755 transitions. Word has length 29 [2021-10-24 09:47:04,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:04,665 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 755 transitions. [2021-10-24 09:47:04,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 755 transitions. [2021-10-24 09:47:04,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 09:47:04,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:04,666 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] [2021-10-24 09:47:04,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:04,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:04,879 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:04,879 INFO L82 PathProgramCache]: Analyzing trace with hash 393860114, now seen corresponding path program 1 times [2021-10-24 09:47:04,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:04,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867734980] [2021-10-24 09:47:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:04,880 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:04,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:04,881 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:04,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 09:47:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:05,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:05,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:05,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:05,294 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:05,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867734980] [2021-10-24 09:47:05,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867734980] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:05,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:05,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 09:47:05,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078901525] [2021-10-24 09:47:05,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:05,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:05,296 INFO L87 Difference]: Start difference. First operand 576 states and 755 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:05,355 INFO L93 Difference]: Finished difference Result 560 states and 724 transitions. [2021-10-24 09:47:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-24 09:47:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:05,362 INFO L225 Difference]: With dead ends: 560 [2021-10-24 09:47:05,362 INFO L226 Difference]: Without dead ends: 560 [2021-10-24 09:47:05,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:47:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-24 09:47:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 544. [2021-10-24 09:47:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.3277153558052435) internal successors, (709), 543 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 709 transitions. [2021-10-24 09:47:05,375 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 709 transitions. Word has length 32 [2021-10-24 09:47:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:05,377 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 709 transitions. [2021-10-24 09:47:05,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 709 transitions. [2021-10-24 09:47:05,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:47:05,379 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:05,379 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] [2021-10-24 09:47:05,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:05,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:05,592 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:05,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1734007889, now seen corresponding path program 1 times [2021-10-24 09:47:05,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:05,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912390666] [2021-10-24 09:47:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:05,594 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:05,595 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:05,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 09:47:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:05,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:05,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:06,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:06,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:06,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912390666] [2021-10-24 09:47:06,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912390666] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:06,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:06,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:06,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77976833] [2021-10-24 09:47:06,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:06,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:06,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:06,194 INFO L87 Difference]: Start difference. First operand 544 states and 709 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:06,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:06,456 INFO L93 Difference]: Finished difference Result 573 states and 739 transitions. [2021-10-24 09:47:06,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:06,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:06,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:06,459 INFO L225 Difference]: With dead ends: 573 [2021-10-24 09:47:06,459 INFO L226 Difference]: Without dead ends: 573 [2021-10-24 09:47:06,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.0ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:06,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-24 09:47:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 544. [2021-10-24 09:47:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.3220973782771535) internal successors, (706), 543 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 706 transitions. [2021-10-24 09:47:06,473 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 706 transitions. Word has length 33 [2021-10-24 09:47:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:06,474 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 706 transitions. [2021-10-24 09:47:06,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 706 transitions. [2021-10-24 09:47:06,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:47:06,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:06,475 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] [2021-10-24 09:47:06,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:06,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:06,687 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:06,688 INFO L82 PathProgramCache]: Analyzing trace with hash -884948062, now seen corresponding path program 1 times [2021-10-24 09:47:06,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:06,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280218800] [2021-10-24 09:47:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:06,688 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:06,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:06,689 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:06,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-24 09:47:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:06,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:06,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:07,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:07,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:07,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280218800] [2021-10-24 09:47:07,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280218800] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:07,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:07,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:07,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706521513] [2021-10-24 09:47:07,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:07,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:07,273 INFO L87 Difference]: Start difference. First operand 544 states and 706 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) [2021-10-24 09:47:07,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:07,492 INFO L93 Difference]: Finished difference Result 573 states and 731 transitions. [2021-10-24 09:47:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:07,496 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 33 [2021-10-24 09:47:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:07,501 INFO L225 Difference]: With dead ends: 573 [2021-10-24 09:47:07,501 INFO L226 Difference]: Without dead ends: 573 [2021-10-24 09:47:07,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-24 09:47:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 544. [2021-10-24 09:47:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.307116104868914) internal successors, (698), 543 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 698 transitions. [2021-10-24 09:47:07,524 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 698 transitions. Word has length 33 [2021-10-24 09:47:07,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:07,524 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 698 transitions. [2021-10-24 09:47:07,525 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) [2021-10-24 09:47:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 698 transitions. [2021-10-24 09:47:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-24 09:47:07,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:07,526 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] [2021-10-24 09:47:07,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:07,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:07,739 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:07,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:07,739 INFO L82 PathProgramCache]: Analyzing trace with hash 474622568, now seen corresponding path program 1 times [2021-10-24 09:47:07,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:07,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915348394] [2021-10-24 09:47:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:07,740 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:07,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:07,741 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:07,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-24 09:47:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:08,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:08,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:08,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:08,296 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:08,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915348394] [2021-10-24 09:47:08,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915348394] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:08,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:08,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 09:47:08,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085387399] [2021-10-24 09:47:08,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:47:08,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:47:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:08,299 INFO L87 Difference]: Start difference. First operand 544 states and 698 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-10-24 09:47:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:08,382 INFO L93 Difference]: Finished difference Result 562 states and 715 transitions. [2021-10-24 09:47:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:47:08,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 34 [2021-10-24 09:47:08,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:08,385 INFO L225 Difference]: With dead ends: 562 [2021-10-24 09:47:08,385 INFO L226 Difference]: Without dead ends: 540 [2021-10-24 09:47:08,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 55.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-24 09:47:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-10-24 09:47:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2021-10-24 09:47:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 527 states have (on average 1.301707779886148) internal successors, (686), 536 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 686 transitions. [2021-10-24 09:47:08,398 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 686 transitions. Word has length 34 [2021-10-24 09:47:08,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:08,398 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 686 transitions. [2021-10-24 09:47:08,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-10-24 09:47:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 686 transitions. [2021-10-24 09:47:08,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-24 09:47:08,399 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:08,400 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] [2021-10-24 09:47:08,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:08,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:08,623 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:08,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:08,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1278502676, now seen corresponding path program 1 times [2021-10-24 09:47:08,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:08,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529737636] [2021-10-24 09:47:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:08,624 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:08,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:08,625 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:08,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-24 09:47:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:08,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:08,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:09,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:09,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:09,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529737636] [2021-10-24 09:47:09,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529737636] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:09,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:09,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:09,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498037594] [2021-10-24 09:47:09,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:09,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:09,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:09,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:09,071 INFO L87 Difference]: Start difference. First operand 537 states and 686 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:09,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:09,242 INFO L93 Difference]: Finished difference Result 926 states and 1160 transitions. [2021-10-24 09:47:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:09,257 INFO L225 Difference]: With dead ends: 926 [2021-10-24 09:47:09,257 INFO L226 Difference]: Without dead ends: 926 [2021-10-24 09:47:09,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-24 09:47:09,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 570. [2021-10-24 09:47:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 560 states have (on average 1.2982142857142858) internal successors, (727), 569 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 727 transitions. [2021-10-24 09:47:09,272 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 727 transitions. Word has length 35 [2021-10-24 09:47:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:09,273 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 727 transitions. [2021-10-24 09:47:09,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 727 transitions. [2021-10-24 09:47:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-24 09:47:09,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:09,274 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] [2021-10-24 09:47:09,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:09,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:09,487 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:09,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:09,488 INFO L82 PathProgramCache]: Analyzing trace with hash 813687739, now seen corresponding path program 1 times [2021-10-24 09:47:09,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:09,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831416932] [2021-10-24 09:47:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:09,488 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:09,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:09,489 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:09,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-24 09:47:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:09,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:09,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:09,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:10,076 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:10,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831416932] [2021-10-24 09:47:10,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831416932] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:10,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:10,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:10,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988831663] [2021-10-24 09:47:10,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:10,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:10,078 INFO L87 Difference]: Start difference. First operand 570 states and 727 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:10,258 INFO L93 Difference]: Finished difference Result 543 states and 675 transitions. [2021-10-24 09:47:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:10,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have 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 [2021-10-24 09:47:10,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:10,261 INFO L225 Difference]: With dead ends: 543 [2021-10-24 09:47:10,261 INFO L226 Difference]: Without dead ends: 543 [2021-10-24 09:47:10,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.9ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-10-24 09:47:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 527. [2021-10-24 09:47:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 517 states have (on average 1.2746615087040618) internal successors, (659), 526 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 659 transitions. [2021-10-24 09:47:10,272 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 659 transitions. Word has length 35 [2021-10-24 09:47:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:10,273 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 659 transitions. [2021-10-24 09:47:10,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 659 transitions. [2021-10-24 09:47:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-24 09:47:10,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:10,274 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] [2021-10-24 09:47:10,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:10,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:10,487 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:10,487 INFO L82 PathProgramCache]: Analyzing trace with hash -759040003, now seen corresponding path program 1 times [2021-10-24 09:47:10,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:10,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078614321] [2021-10-24 09:47:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:10,488 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:10,489 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-24 09:47:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:10,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:10,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:10,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:10,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:10,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078614321] [2021-10-24 09:47:10,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078614321] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:10,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:10,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:10,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247405215] [2021-10-24 09:47:10,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:10,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:10,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:10,982 INFO L87 Difference]: Start difference. First operand 527 states and 659 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) [2021-10-24 09:47:11,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:11,090 INFO L93 Difference]: Finished difference Result 526 states and 650 transitions. [2021-10-24 09:47:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:11,092 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 [2021-10-24 09:47:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:11,095 INFO L225 Difference]: With dead ends: 526 [2021-10-24 09:47:11,095 INFO L226 Difference]: Without dead ends: 526 [2021-10-24 09:47:11,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-10-24 09:47:11,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 520. [2021-10-24 09:47:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 511 states have (on average 1.264187866927593) internal successors, (646), 519 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:11,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 646 transitions. [2021-10-24 09:47:11,107 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 646 transitions. Word has length 35 [2021-10-24 09:47:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:11,107 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 646 transitions. [2021-10-24 09:47:11,108 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) [2021-10-24 09:47:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 646 transitions. [2021-10-24 09:47:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 09:47:11,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:11,109 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] [2021-10-24 09:47:11,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:11,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:11,321 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:11,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1588705385, now seen corresponding path program 1 times [2021-10-24 09:47:11,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:11,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39338721] [2021-10-24 09:47:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:11,322 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:11,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:11,323 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:11,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-24 09:47:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:11,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:11,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:11,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:11,882 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:11,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39338721] [2021-10-24 09:47:11,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39338721] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:11,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:11,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:11,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707015042] [2021-10-24 09:47:11,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:11,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:11,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:11,885 INFO L87 Difference]: Start difference. First operand 520 states and 646 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:11,918 INFO L93 Difference]: Finished difference Result 581 states and 718 transitions. [2021-10-24 09:47:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:11,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 09:47:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:11,922 INFO L225 Difference]: With dead ends: 581 [2021-10-24 09:47:11,922 INFO L226 Difference]: Without dead ends: 581 [2021-10-24 09:47:11,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2021-10-24 09:47:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 508. [2021-10-24 09:47:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 502 states have (on average 1.250996015936255) internal successors, (628), 507 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 628 transitions. [2021-10-24 09:47:11,935 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 628 transitions. Word has length 36 [2021-10-24 09:47:11,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:11,935 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 628 transitions. [2021-10-24 09:47:11,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 628 transitions. [2021-10-24 09:47:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 09:47:11,937 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:11,937 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] [2021-10-24 09:47:11,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:12,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:12,150 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:12,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:12,150 INFO L82 PathProgramCache]: Analyzing trace with hash -949179113, now seen corresponding path program 1 times [2021-10-24 09:47:12,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:12,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658775017] [2021-10-24 09:47:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:12,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:12,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:12,153 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:12,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-24 09:47:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:12,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:12,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:12,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:12,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:12,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658775017] [2021-10-24 09:47:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658775017] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:12,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:12,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 09:47:12,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148598738] [2021-10-24 09:47:12,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:12,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:12,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:12,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:12,695 INFO L87 Difference]: Start difference. First operand 508 states and 628 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:12,720 INFO L93 Difference]: Finished difference Result 512 states and 625 transitions. [2021-10-24 09:47:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:12,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 09:47:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:12,723 INFO L225 Difference]: With dead ends: 512 [2021-10-24 09:47:12,723 INFO L226 Difference]: Without dead ends: 512 [2021-10-24 09:47:12,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:47:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-10-24 09:47:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 490. [2021-10-24 09:47:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 484 states have (on average 1.25) internal successors, (605), 489 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:12,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 605 transitions. [2021-10-24 09:47:12,737 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 605 transitions. Word has length 36 [2021-10-24 09:47:12,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:12,737 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 605 transitions. [2021-10-24 09:47:12,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:12,738 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 605 transitions. [2021-10-24 09:47:12,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 09:47:12,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:12,739 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] [2021-10-24 09:47:12,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:12,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:12,953 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:12,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:12,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2037812492, now seen corresponding path program 1 times [2021-10-24 09:47:12,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:12,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826968735] [2021-10-24 09:47:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:12,954 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:12,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:12,954 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:12,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-24 09:47:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:13,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:13,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:13,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:13,682 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:13,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826968735] [2021-10-24 09:47:13,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826968735] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:13,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:13,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-24 09:47:13,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552546042] [2021-10-24 09:47:13,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 09:47:13,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 09:47:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-24 09:47:13,684 INFO L87 Difference]: Start difference. First operand 490 states and 605 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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) [2021-10-24 09:47:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:14,198 INFO L93 Difference]: Finished difference Result 763 states and 926 transitions. [2021-10-24 09:47:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 09:47:14,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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 36 [2021-10-24 09:47:14,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:14,203 INFO L225 Difference]: With dead ends: 763 [2021-10-24 09:47:14,203 INFO L226 Difference]: Without dead ends: 746 [2021-10-24 09:47:14,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 192.9ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-24 09:47:14,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-10-24 09:47:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 495. [2021-10-24 09:47:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 489 states have (on average 1.2453987730061349) internal successors, (609), 494 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 609 transitions. [2021-10-24 09:47:14,216 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 609 transitions. Word has length 36 [2021-10-24 09:47:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:14,217 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 609 transitions. [2021-10-24 09:47:14,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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) [2021-10-24 09:47:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 609 transitions. [2021-10-24 09:47:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 09:47:14,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:14,218 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] [2021-10-24 09:47:14,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:14,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:14,431 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:14,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:14,431 INFO L82 PathProgramCache]: Analyzing trace with hash -187266092, now seen corresponding path program 1 times [2021-10-24 09:47:14,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:14,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930509415] [2021-10-24 09:47:14,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:14,432 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:14,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:14,433 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:14,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-24 09:47:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:14,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:14,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:15,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:15,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:15,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:15,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930509415] [2021-10-24 09:47:15,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930509415] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:15,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:15,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:15,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758069060] [2021-10-24 09:47:15,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:15,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:15,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:15,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:15,276 INFO L87 Difference]: Start difference. First operand 495 states and 609 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:15,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:15,428 INFO L93 Difference]: Finished difference Result 497 states and 609 transitions. [2021-10-24 09:47:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:15,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 09:47:15,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:15,431 INFO L225 Difference]: With dead ends: 497 [2021-10-24 09:47:15,431 INFO L226 Difference]: Without dead ends: 476 [2021-10-24 09:47:15,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-24 09:47:15,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-10-24 09:47:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 470 states have (on average 1.248936170212766) internal successors, (587), 475 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 587 transitions. [2021-10-24 09:47:15,441 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 587 transitions. Word has length 37 [2021-10-24 09:47:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:15,441 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 587 transitions. [2021-10-24 09:47:15,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 587 transitions. [2021-10-24 09:47:15,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-24 09:47:15,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:15,443 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, 1] [2021-10-24 09:47:15,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:15,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:15,656 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:15,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:15,657 INFO L82 PathProgramCache]: Analyzing trace with hash -475644176, now seen corresponding path program 1 times [2021-10-24 09:47:15,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:15,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709504053] [2021-10-24 09:47:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:15,658 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:15,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:15,659 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:15,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-24 09:47:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:16,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:16,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:16,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:16,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:16,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709504053] [2021-10-24 09:47:16,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709504053] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:16,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:16,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:16,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642773425] [2021-10-24 09:47:16,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:16,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:16,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:16,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:16,326 INFO L87 Difference]: Start difference. First operand 476 states and 587 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:16,350 INFO L93 Difference]: Finished difference Result 571 states and 693 transitions. [2021-10-24 09:47:16,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:16,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-24 09:47:16,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:16,353 INFO L225 Difference]: With dead ends: 571 [2021-10-24 09:47:16,353 INFO L226 Difference]: Without dead ends: 571 [2021-10-24 09:47:16,354 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-10-24 09:47:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 477. [2021-10-24 09:47:16,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.2484076433121019) internal successors, (588), 476 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 588 transitions. [2021-10-24 09:47:16,365 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 588 transitions. Word has length 38 [2021-10-24 09:47:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:16,366 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 588 transitions. [2021-10-24 09:47:16,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 588 transitions. [2021-10-24 09:47:16,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-24 09:47:16,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:16,367 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, 1] [2021-10-24 09:47:16,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:16,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:16,580 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:16,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:16,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1329794158, now seen corresponding path program 1 times [2021-10-24 09:47:16,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:16,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994408421] [2021-10-24 09:47:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:16,581 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:16,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:16,582 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:16,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-24 09:47:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:17,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:17,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:17,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:17,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:17,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994408421] [2021-10-24 09:47:17,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994408421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:17,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:17,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 09:47:17,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837827605] [2021-10-24 09:47:17,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:47:17,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:17,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:47:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:47:17,200 INFO L87 Difference]: Start difference. First operand 477 states and 588 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:17,358 INFO L93 Difference]: Finished difference Result 662 states and 791 transitions. [2021-10-24 09:47:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:47:17,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-24 09:47:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:17,363 INFO L225 Difference]: With dead ends: 662 [2021-10-24 09:47:17,363 INFO L226 Difference]: Without dead ends: 662 [2021-10-24 09:47:17,364 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:47:17,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-10-24 09:47:17,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 477. [2021-10-24 09:47:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.2399150743099787) internal successors, (584), 476 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 584 transitions. [2021-10-24 09:47:17,375 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 584 transitions. Word has length 38 [2021-10-24 09:47:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:17,375 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 584 transitions. [2021-10-24 09:47:17,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 584 transitions. [2021-10-24 09:47:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-24 09:47:17,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:17,377 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, 1, 1, 1, 1] [2021-10-24 09:47:17,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:17,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:17,590 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:17,590 INFO L82 PathProgramCache]: Analyzing trace with hash 595887759, now seen corresponding path program 1 times [2021-10-24 09:47:17,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:17,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806177976] [2021-10-24 09:47:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:17,591 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:17,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:17,592 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:17,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-24 09:47:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:18,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:18,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:18,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:18,246 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:18,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806177976] [2021-10-24 09:47:18,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806177976] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:18,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:18,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 09:47:18,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402220978] [2021-10-24 09:47:18,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:47:18,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:47:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:47:18,248 INFO L87 Difference]: Start difference. First operand 477 states and 584 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:18,424 INFO L93 Difference]: Finished difference Result 810 states and 989 transitions. [2021-10-24 09:47:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:47:18,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-24 09:47:18,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:18,428 INFO L225 Difference]: With dead ends: 810 [2021-10-24 09:47:18,428 INFO L226 Difference]: Without dead ends: 810 [2021-10-24 09:47:18,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-10-24 09:47:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 477. [2021-10-24 09:47:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.237791932059448) internal successors, (583), 476 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 583 transitions. [2021-10-24 09:47:18,441 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 583 transitions. Word has length 41 [2021-10-24 09:47:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:18,442 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 583 transitions. [2021-10-24 09:47:18,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 583 transitions. [2021-10-24 09:47:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-24 09:47:18,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:18,443 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, 1, 1, 1, 1] [2021-10-24 09:47:18,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:18,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:18,657 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:18,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:18,657 INFO L82 PathProgramCache]: Analyzing trace with hash 768333102, now seen corresponding path program 1 times [2021-10-24 09:47:18,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:18,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538250980] [2021-10-24 09:47:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:18,658 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:18,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:18,658 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:18,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-24 09:47:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:19,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:19,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:19,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:19,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:19,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538250980] [2021-10-24 09:47:19,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538250980] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:19,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:19,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-24 09:47:19,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377924674] [2021-10-24 09:47:19,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-24 09:47:19,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:19,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-24 09:47:19,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-24 09:47:19,511 INFO L87 Difference]: Start difference. First operand 477 states and 583 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:20,159 INFO L93 Difference]: Finished difference Result 753 states and 905 transitions. [2021-10-24 09:47:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 09:47:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-24 09:47:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:20,162 INFO L225 Difference]: With dead ends: 753 [2021-10-24 09:47:20,162 INFO L226 Difference]: Without dead ends: 573 [2021-10-24 09:47:20,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 337.0ms TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-24 09:47:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-24 09:47:20,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 367. [2021-10-24 09:47:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 362 states have (on average 1.2375690607734806) internal successors, (448), 366 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 448 transitions. [2021-10-24 09:47:20,171 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 448 transitions. Word has length 41 [2021-10-24 09:47:20,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:20,172 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 448 transitions. [2021-10-24 09:47:20,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 448 transitions. [2021-10-24 09:47:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-24 09:47:20,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:20,173 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:20,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-10-24 09:47:20,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:20,386 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:20,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:20,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1022149612, now seen corresponding path program 1 times [2021-10-24 09:47:20,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:20,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119944233] [2021-10-24 09:47:20,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:20,387 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:20,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:20,388 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:20,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-24 09:47:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:20,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:20,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:20,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:21,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:21,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119944233] [2021-10-24 09:47:21,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119944233] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:21,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:21,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:21,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127144434] [2021-10-24 09:47:21,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:21,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:21,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:21,028 INFO L87 Difference]: Start difference. First operand 367 states and 448 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:21,122 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2021-10-24 09:47:21,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:21,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-24 09:47:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:21,124 INFO L225 Difference]: With dead ends: 329 [2021-10-24 09:47:21,124 INFO L226 Difference]: Without dead ends: 329 [2021-10-24 09:47:21,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-10-24 09:47:21,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2021-10-24 09:47:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 326 states have (on average 1.2239263803680982) internal successors, (399), 328 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 399 transitions. [2021-10-24 09:47:21,130 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 399 transitions. Word has length 45 [2021-10-24 09:47:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:21,130 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 399 transitions. [2021-10-24 09:47:21,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:21,130 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 399 transitions. [2021-10-24 09:47:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-24 09:47:21,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:21,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:21,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:21,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:21,341 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:21,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1401867196, now seen corresponding path program 1 times [2021-10-24 09:47:21,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:21,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081477816] [2021-10-24 09:47:21,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:21,342 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:21,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:21,343 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:21,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-24 09:47:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:21,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:21,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:21,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:22,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:22,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081477816] [2021-10-24 09:47:22,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081477816] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:22,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:22,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:22,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107326426] [2021-10-24 09:47:22,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:22,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:22,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:22,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:22,060 INFO L87 Difference]: Start difference. First operand 329 states and 399 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:22,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:22,094 INFO L93 Difference]: Finished difference Result 437 states and 529 transitions. [2021-10-24 09:47:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:22,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-24 09:47:22,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:22,097 INFO L225 Difference]: With dead ends: 437 [2021-10-24 09:47:22,097 INFO L226 Difference]: Without dead ends: 437 [2021-10-24 09:47:22,097 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:22,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-10-24 09:47:22,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 329. [2021-10-24 09:47:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 326 states have (on average 1.2116564417177915) internal successors, (395), 328 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 395 transitions. [2021-10-24 09:47:22,103 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 395 transitions. Word has length 52 [2021-10-24 09:47:22,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:22,104 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 395 transitions. [2021-10-24 09:47:22,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 395 transitions. [2021-10-24 09:47:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-24 09:47:22,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:22,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:22,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:22,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:22,320 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:22,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:22,320 INFO L82 PathProgramCache]: Analyzing trace with hash -605199811, now seen corresponding path program 1 times [2021-10-24 09:47:22,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:22,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869617228] [2021-10-24 09:47:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:22,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:22,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:22,321 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:22,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-24 09:47:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:22,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 09:47:22,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:23,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:23,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:23,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869617228] [2021-10-24 09:47:23,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869617228] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:23,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:23,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-24 09:47:23,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705071758] [2021-10-24 09:47:23,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-24 09:47:23,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-24 09:47:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-24 09:47:23,189 INFO L87 Difference]: Start difference. First operand 329 states and 395 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:23,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:23,609 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2021-10-24 09:47:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-24 09:47:23,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-24 09:47:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:23,613 INFO L225 Difference]: With dead ends: 564 [2021-10-24 09:47:23,613 INFO L226 Difference]: Without dead ends: 548 [2021-10-24 09:47:23,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 245.5ms TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2021-10-24 09:47:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-24 09:47:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 323. [2021-10-24 09:47:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.2125) internal successors, (388), 322 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 388 transitions. [2021-10-24 09:47:23,622 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 388 transitions. Word has length 52 [2021-10-24 09:47:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:23,623 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 388 transitions. [2021-10-24 09:47:23,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 388 transitions. [2021-10-24 09:47:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-24 09:47:23,624 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:23,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:23,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-10-24 09:47:23,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:23,839 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:23,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:23,839 INFO L82 PathProgramCache]: Analyzing trace with hash -158719954, now seen corresponding path program 1 times [2021-10-24 09:47:23,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:23,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558660195] [2021-10-24 09:47:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:23,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:23,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:23,841 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:23,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-24 09:47:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:24,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:24,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:24,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:24,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:24,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558660195] [2021-10-24 09:47:24,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558660195] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:24,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:24,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:47:24,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586486803] [2021-10-24 09:47:24,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:47:24,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:24,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:47:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:24,677 INFO L87 Difference]: Start difference. First operand 323 states and 388 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:24,693 INFO L93 Difference]: Finished difference Result 323 states and 386 transitions. [2021-10-24 09:47:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:24,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-24 09:47:24,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:24,694 INFO L225 Difference]: With dead ends: 323 [2021-10-24 09:47:24,696 INFO L226 Difference]: Without dead ends: 323 [2021-10-24 09:47:24,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:47:24,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-24 09:47:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-24 09:47:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.20625) internal successors, (386), 322 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 386 transitions. [2021-10-24 09:47:24,702 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 386 transitions. Word has length 53 [2021-10-24 09:47:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:24,703 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 386 transitions. [2021-10-24 09:47:24,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 386 transitions. [2021-10-24 09:47:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-24 09:47:24,706 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:24,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:24,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:24,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:24,920 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-24 09:47:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:24,920 INFO L82 PathProgramCache]: Analyzing trace with hash 273758220, now seen corresponding path program 1 times [2021-10-24 09:47:24,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:24,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609020369] [2021-10-24 09:47:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:24,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:24,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:24,921 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:24,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-24 09:47:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:47:25,498 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:47:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:47:25,731 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 09:47:25,731 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:47:25,732 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,741 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:47:25,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:25,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:25,960 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:47:26,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:47:26 BoogieIcfgContainer [2021-10-24 09:47:26,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:47:26,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:47:26,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:47:26,105 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:47:26,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:53" (3/4) ... [2021-10-24 09:47:26,109 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 09:47:26,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:47:26,110 INFO L168 Benchmark]: Toolchain (without parser) took 34943.91 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 33.2 MB in the beginning and 59.5 MB in the end (delta: -26.2 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,111 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:26,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.98 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 28.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.26 ms. Allocated memory is still 56.6 MB. Free memory was 28.1 MB in the beginning and 35.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,112 INFO L168 Benchmark]: Boogie Preprocessor took 156.09 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 30.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,114 INFO L168 Benchmark]: RCFGBuilder took 1541.58 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 30.1 MB in the beginning and 39.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,115 INFO L168 Benchmark]: TraceAbstraction took 32579.49 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 39.1 MB in the beginning and 59.5 MB in the end (delta: -20.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:26,115 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 111.1 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:26,118 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 56.6 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.98 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 28.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 144.26 ms. Allocated memory is still 56.6 MB. Free memory was 28.1 MB in the beginning and 35.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 156.09 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 30.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1541.58 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 30.1 MB in the beginning and 39.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32579.49 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 39.1 MB in the beginning and 59.5 MB in the end (delta: -20.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.99 ms. Allocated memory is still 111.1 MB. Free memory is still 59.5 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L [L1036] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1045] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1049] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1064] return (0); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1006] return (returnVal2); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 670]: 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, 422 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 32380.8ms, OverallIterations: 35, TraceHistogramMax: 1, EmptinessCheckTime: 50.4ms, AutomataDifference: 5971.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14860 SDtfs, 17917 SDslu, 22749 SDs, 0 SdLazy, 3861 SolverSat, 700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3600.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2083 GetRequests, 1917 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1304.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=8, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 510.8ms AutomataMinimizationTime, 34 MinimizatonAttempts, 2575 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 656.2ms SsaConstructionTime, 1368.2ms SatisfiabilityAnalysisTime, 7209.1ms InterpolantComputationTime, 1097 NumberOfCodeBlocks, 1097 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 2016 ConstructedInterpolants, 0 QuantifiedInterpolants, 4655 SizeOfPredicates, 49 NumberOfNonLiveVariables, 4969 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 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 [2021-10-24 09:47:26,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51f7126-4baf-4954-be9e-7b4998488100/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...