./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan --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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan --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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:41:02,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:41:02,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:41:02,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:41:02,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:41:02,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:41:02,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:41:02,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:41:02,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:41:02,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:41:02,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:41:02,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:41:02,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:41:02,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:41:02,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:41:02,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:41:02,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:41:02,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:41:02,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:41:02,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:41:02,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:41:02,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:41:02,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:41:02,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:41:02,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:41:02,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:41:02,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:41:02,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:41:02,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:41:02,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:41:02,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:41:02,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:41:02,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:41:02,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:41:02,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:41:02,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:41:02,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:41:02,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:41:02,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:41:02,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:41:02,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:41:02,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 04:41:02,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:41:02,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:41:02,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:41:02,880 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:41:02,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:41:02,880 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:41:02,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:41:02,881 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:41:02,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:41:02,886 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:41:02,886 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:41:02,886 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:41:02,887 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:41:02,887 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:41:02,887 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:41:02,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 04:41:02,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 04:41:02,888 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:41:02,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:41:02,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:41:02,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:41:02,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:41:02,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:41:02,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:41:02,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:41:02,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:41:02,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:41:02,891 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-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-12-09 04:41:03,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:41:03,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:41:03,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:41:03,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:41:03,074 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:41:03,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_14-2.c [2020-12-09 04:41:03,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/e46773a68/310339af76e046299bfb6eab8f7b5df6/FLAG803241182 [2020-12-09 04:41:03,477 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:41:03,477 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c [2020-12-09 04:41:03,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/e46773a68/310339af76e046299bfb6eab8f7b5df6/FLAG803241182 [2020-12-09 04:41:03,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/e46773a68/310339af76e046299bfb6eab8f7b5df6 [2020-12-09 04:41:03,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:41:03,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:41:03,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:41:03,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:41:03,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:41:03,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:41:03" (1/1) ... [2020-12-09 04:41:03,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d75868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:03, skipping insertion in model container [2020-12-09 04:41:03,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:41:03" (1/1) ... [2020-12-09 04:41:03,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:41:03,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:41:04,028 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2020-12-09 04:41:04,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:41:04,038 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:41:04,058 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2020-12-09 04:41:04,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:41:04,069 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:41:04,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04 WrapperNode [2020-12-09 04:41:04,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:41:04,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:41:04,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:41:04,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:41:04,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:41:04,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:41:04,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:41:04,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:41:04,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... [2020-12-09 04:41:04,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:41:04,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:41:04,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:41:04,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:41:04,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:41:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:41:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:41:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:41:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:41:04,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:41:04,578 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 04:41:04,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:04 BoogieIcfgContainer [2020-12-09 04:41:04,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:41:04,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:41:04,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:41:04,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:41:04,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:41:03" (1/3) ... [2020-12-09 04:41:04,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1826af39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:41:04, skipping insertion in model container [2020-12-09 04:41:04,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:04" (2/3) ... [2020-12-09 04:41:04,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1826af39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:41:04, skipping insertion in model container [2020-12-09 04:41:04,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:04" (3/3) ... [2020-12-09 04:41:04,589 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-12-09 04:41:04,602 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:41:04,605 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 04:41:04,615 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 04:41:04,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:41:04,632 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 04:41:04,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:41:04,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:41:04,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:41:04,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:41:04,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:41:04,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:41:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-09 04:41:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 04:41:04,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:04,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 04:41:04,648 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:04,652 INFO L82 PathProgramCache]: Analyzing trace with hash 9118541, now seen corresponding path program 1 times [2020-12-09 04:41:04,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:41:04,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676932092] [2020-12-09 04:41:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:41:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:04,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676932092] [2020-12-09 04:41:04,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:04,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:41:04,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946423967] [2020-12-09 04:41:04,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:41:04,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:41:04,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:41:04,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:41:04,794 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-09 04:41:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:04,805 INFO L93 Difference]: Finished difference Result 37 states and 64 transitions. [2020-12-09 04:41:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:41:04,806 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-09 04:41:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:04,812 INFO L225 Difference]: With dead ends: 37 [2020-12-09 04:41:04,813 INFO L226 Difference]: Without dead ends: 36 [2020-12-09 04:41:04,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:41:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-09 04:41:04,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-09 04:41:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-09 04:41:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-12-09 04:41:04,843 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 4 [2020-12-09 04:41:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:04,843 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-12-09 04:41:04,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:41:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-12-09 04:41:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 04:41:04,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:04,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 04:41:04,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:41:04,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:04,845 INFO L82 PathProgramCache]: Analyzing trace with hash 274635153, now seen corresponding path program 1 times [2020-12-09 04:41:04,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:41:04,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494724368] [2020-12-09 04:41:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:41:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:04,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494724368] [2020-12-09 04:41:04,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:04,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 04:41:04,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805670547] [2020-12-09 04:41:04,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:04,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:41:04,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:04,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:04,896 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 3 states. [2020-12-09 04:41:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:04,903 INFO L93 Difference]: Finished difference Result 35 states and 62 transitions. [2020-12-09 04:41:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:04,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 04:41:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:04,904 INFO L225 Difference]: With dead ends: 35 [2020-12-09 04:41:04,904 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 04:41:04,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 04:41:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-09 04:41:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 04:41:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 60 transitions. [2020-12-09 04:41:04,911 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 60 transitions. Word has length 5 [2020-12-09 04:41:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:04,911 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 60 transitions. [2020-12-09 04:41:04,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2020-12-09 04:41:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 04:41:04,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:04,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 04:41:04,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 04:41:04,912 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:04,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:04,913 INFO L82 PathProgramCache]: Analyzing trace with hash -67997349, now seen corresponding path program 1 times [2020-12-09 04:41:04,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:41:04,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742095914] [2020-12-09 04:41:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:41:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:04,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742095914] [2020-12-09 04:41:04,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:04,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:41:04,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369584537] [2020-12-09 04:41:04,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:41:04,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:41:04,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:41:04,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:41:04,975 INFO L87 Difference]: Start difference. First operand 33 states and 60 transitions. Second operand 4 states. [2020-12-09 04:41:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:05,004 INFO L93 Difference]: Finished difference Result 63 states and 114 transitions. [2020-12-09 04:41:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:41:05,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 04:41:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:05,005 INFO L225 Difference]: With dead ends: 63 [2020-12-09 04:41:05,006 INFO L226 Difference]: Without dead ends: 63 [2020-12-09 04:41:05,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:41:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-09 04:41:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 33. [2020-12-09 04:41:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 04:41:05,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2020-12-09 04:41:05,012 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2020-12-09 04:41:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:05,012 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2020-12-09 04:41:05,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:41:05,013 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2020-12-09 04:41:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 04:41:05,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:05,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 04:41:05,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 04:41:05,014 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:05,014 INFO L82 PathProgramCache]: Analyzing trace with hash -67990157, now seen corresponding path program 1 times [2020-12-09 04:41:05,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:41:05,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920534890] [2020-12-09 04:41:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:41:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:41:05,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:41:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:41:05,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:41:05,092 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 04:41:05,093 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:41:05,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 04:41:05,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:41:05 BoogieIcfgContainer [2020-12-09 04:41:05,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:41:05,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:41:05,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:41:05,117 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:41:05,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:04" (3/4) ... [2020-12-09 04:41:05,120 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 04:41:05,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:41:05,121 INFO L168 Benchmark]: Toolchain (without parser) took 1220.43 ms. Allocated memory is still 117.4 MB. Free memory was 95.3 MB in the beginning and 90.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,122 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 83.9 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:41:05,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.45 ms. Allocated memory is still 117.4 MB. Free memory was 95.3 MB in the beginning and 84.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 117.4 MB. Free memory was 84.4 MB in the beginning and 82.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,124 INFO L168 Benchmark]: Boogie Preprocessor took 19.72 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 81.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,124 INFO L168 Benchmark]: RCFGBuilder took 460.74 ms. Allocated memory is still 117.4 MB. Free memory was 81.0 MB in the beginning and 78.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,125 INFO L168 Benchmark]: TraceAbstraction took 534.70 ms. Allocated memory is still 117.4 MB. Free memory was 78.8 MB in the beginning and 90.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:05,125 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 117.4 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:41:05,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 83.9 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 168.45 ms. Allocated memory is still 117.4 MB. Free memory was 95.3 MB in the beginning and 84.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 117.4 MB. Free memory was 84.4 MB in the beginning and 82.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.72 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 81.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 460.74 ms. Allocated memory is still 117.4 MB. Free memory was 81.0 MB in the beginning and 78.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 534.70 ms. Allocated memory is still 117.4 MB. Free memory was 78.8 MB in the beginning and 90.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.00 ms. Allocated memory is still 117.4 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND FALSE !(p3 != 0) [L100] COND FALSE !(p4 != 0) [L104] COND TRUE p5 != 0 [L105] lk5 = 1 [L108] COND FALSE !(p6 != 0) [L112] COND FALSE !(p7 != 0) [L116] COND FALSE !(p8 != 0) [L120] COND TRUE p9 != 0 [L121] lk9 = 1 [L124] COND FALSE !(p10 != 0) [L128] COND FALSE !(p11 != 0) [L132] COND TRUE p12 != 0 [L133] lk12 = 1 [L136] COND TRUE p13 != 0 [L137] lk13 = 1 [L140] COND FALSE !(p14 != 0) [L146] COND FALSE !(p1 != 0) [L151] COND FALSE !(p2 != 0) [L219] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 114 SDslu, 108 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:41:06,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:41:06,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:41:06,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:41:06,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:41:06,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:41:06,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:41:06,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:41:06,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:41:06,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:41:06,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:41:06,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:41:06,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:41:06,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:41:06,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:41:06,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:41:06,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:41:06,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:41:06,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:41:06,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:41:06,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:41:06,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:41:06,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:41:06,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:41:06,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:41:06,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:41:06,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:41:06,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:41:06,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:41:06,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:41:06,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:41:06,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:41:06,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:41:06,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:41:06,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:41:06,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:41:06,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:41:06,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:41:06,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:41:06,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:41:06,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:41:06,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 04:41:06,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:41:06,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:41:06,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:41:06,854 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:41:06,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:41:06,855 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:41:06,855 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:41:06,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:41:06,855 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:41:06,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 04:41:06,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:41:06,856 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:41:06,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:41:06,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:41:06,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 04:41:06,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 04:41:06,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:41:06,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:41:06,859 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-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-12-09 04:41:07,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:41:07,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:41:07,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:41:07,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:41:07,115 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:41:07,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_14-2.c [2020-12-09 04:41:07,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/773dbdb47/c193d0c709b842009355e6ef39f19e69/FLAG1958c4ab4 [2020-12-09 04:41:07,528 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:41:07,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c [2020-12-09 04:41:07,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/773dbdb47/c193d0c709b842009355e6ef39f19e69/FLAG1958c4ab4 [2020-12-09 04:41:07,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/data/773dbdb47/c193d0c709b842009355e6ef39f19e69 [2020-12-09 04:41:07,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:41:07,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:41:07,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:41:07,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:41:07,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:41:07,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cd32c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07, skipping insertion in model container [2020-12-09 04:41:07,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:41:07,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:41:07,681 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2020-12-09 04:41:07,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:41:07,692 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:41:07,725 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2020-12-09 04:41:07,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:41:07,744 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:41:07,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07 WrapperNode [2020-12-09 04:41:07,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:41:07,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:41:07,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:41:07,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:41:07,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:41:07,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:41:07,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:41:07,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:41:07,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... [2020-12-09 04:41:07,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:41:07,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:41:07,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:41:07,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:41:07,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:41:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:41:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:41:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 04:41:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:41:08,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:41:08,126 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 04:41:08,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:08 BoogieIcfgContainer [2020-12-09 04:41:08,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:41:08,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:41:08,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:41:08,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:41:08,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:41:07" (1/3) ... [2020-12-09 04:41:08,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e477ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:41:08, skipping insertion in model container [2020-12-09 04:41:08,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:41:07" (2/3) ... [2020-12-09 04:41:08,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e477ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:41:08, skipping insertion in model container [2020-12-09 04:41:08,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:08" (3/3) ... [2020-12-09 04:41:08,133 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-12-09 04:41:08,142 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:41:08,145 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 04:41:08,152 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 04:41:08,166 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:41:08,166 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 04:41:08,166 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:41:08,166 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:41:08,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:41:08,167 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:41:08,167 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:41:08,167 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:41:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-12-09 04:41:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 04:41:08,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:08,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 04:41:08,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2020-12-09 04:41:08,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:08,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32637450] [2020-12-09 04:41:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:08,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 04:41:08,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:08,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:08,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32637450] [2020-12-09 04:41:08,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:08,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:41:08,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848093220] [2020-12-09 04:41:08,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:41:08,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:08,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:41:08,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:41:08,288 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2020-12-09 04:41:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:08,299 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2020-12-09 04:41:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:41:08,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-09 04:41:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:08,307 INFO L225 Difference]: With dead ends: 53 [2020-12-09 04:41:08,307 INFO L226 Difference]: Without dead ends: 51 [2020-12-09 04:41:08,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:41:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-09 04:41:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-09 04:41:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-09 04:41:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2020-12-09 04:41:08,334 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2020-12-09 04:41:08,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:08,334 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2020-12-09 04:41:08,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:41:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2020-12-09 04:41:08,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 04:41:08,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:08,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 04:41:08,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 04:41:08,535 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:08,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:08,536 INFO L82 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2020-12-09 04:41:08,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:08,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090838412] [2020-12-09 04:41:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:08,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:41:08,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:08,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:08,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090838412] [2020-12-09 04:41:08,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:08,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:41:08,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274481812] [2020-12-09 04:41:08,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:08,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:08,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:08,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:08,584 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand 3 states. [2020-12-09 04:41:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:08,594 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2020-12-09 04:41:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:08,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 04:41:08,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:08,596 INFO L225 Difference]: With dead ends: 50 [2020-12-09 04:41:08,596 INFO L226 Difference]: Without dead ends: 48 [2020-12-09 04:41:08,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-09 04:41:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-12-09 04:41:08,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-09 04:41:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2020-12-09 04:41:08,601 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2020-12-09 04:41:08,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:08,601 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2020-12-09 04:41:08,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2020-12-09 04:41:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:41:08,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:08,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:08,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 04:41:08,804 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:08,807 INFO L82 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2020-12-09 04:41:08,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:08,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770099885] [2020-12-09 04:41:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:08,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:41:08,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:08,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:08,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770099885] [2020-12-09 04:41:08,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:08,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:41:08,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016418206] [2020-12-09 04:41:08,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:08,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:08,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:08,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:08,992 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand 3 states. [2020-12-09 04:41:09,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:09,010 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2020-12-09 04:41:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:09,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 04:41:09,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:09,011 INFO L225 Difference]: With dead ends: 93 [2020-12-09 04:41:09,012 INFO L226 Difference]: Without dead ends: 93 [2020-12-09 04:41:09,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-09 04:41:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2020-12-09 04:41:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-09 04:41:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2020-12-09 04:41:09,019 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2020-12-09 04:41:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:09,019 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2020-12-09 04:41:09,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:09,019 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2020-12-09 04:41:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:41:09,020 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:09,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:09,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 04:41:09,222 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:09,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:09,224 INFO L82 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2020-12-09 04:41:09,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:09,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251073776] [2020-12-09 04:41:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:09,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:41:09,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:09,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:09,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251073776] [2020-12-09 04:41:09,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:09,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:41:09,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010783994] [2020-12-09 04:41:09,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:09,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:09,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:09,390 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand 3 states. [2020-12-09 04:41:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:09,403 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2020-12-09 04:41:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:09,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 04:41:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:09,404 INFO L225 Difference]: With dead ends: 94 [2020-12-09 04:41:09,404 INFO L226 Difference]: Without dead ends: 94 [2020-12-09 04:41:09,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-09 04:41:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2020-12-09 04:41:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-09 04:41:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2020-12-09 04:41:09,412 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2020-12-09 04:41:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:09,412 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2020-12-09 04:41:09,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2020-12-09 04:41:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:41:09,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:09,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:09,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 04:41:09,615 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:09,617 INFO L82 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2020-12-09 04:41:09,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:09,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660303357] [2020-12-09 04:41:09,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:09,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:41:09,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:09,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:09,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660303357] [2020-12-09 04:41:09,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:09,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:41:09,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050450434] [2020-12-09 04:41:09,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:09,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:09,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:09,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:09,823 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand 3 states. [2020-12-09 04:41:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:09,837 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2020-12-09 04:41:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:09,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 04:41:09,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:09,838 INFO L225 Difference]: With dead ends: 96 [2020-12-09 04:41:09,838 INFO L226 Difference]: Without dead ends: 96 [2020-12-09 04:41:09,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-09 04:41:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-12-09 04:41:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-09 04:41:09,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2020-12-09 04:41:09,846 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2020-12-09 04:41:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:09,846 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2020-12-09 04:41:09,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2020-12-09 04:41:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:41:09,847 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:09,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:10,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,048 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:10,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:10,049 INFO L82 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2020-12-09 04:41:10,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:10,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999903021] [2020-12-09 04:41:10,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:10,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:41:10,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:41:10,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:41:10,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999903021] [2020-12-09 04:41:10,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:41:10,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:41:10,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495127205] [2020-12-09 04:41:10,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:10,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:10,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:10,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:10,147 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand 3 states. [2020-12-09 04:41:10,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:10,158 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2020-12-09 04:41:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:10,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 04:41:10,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:10,159 INFO L225 Difference]: With dead ends: 127 [2020-12-09 04:41:10,159 INFO L226 Difference]: Without dead ends: 127 [2020-12-09 04:41:10,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:41:10,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-09 04:41:10,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-12-09 04:41:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-09 04:41:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2020-12-09 04:41:10,166 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2020-12-09 04:41:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:10,166 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2020-12-09 04:41:10,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2020-12-09 04:41:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:41:10,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:10,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:10,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,369 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 04:41:10,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:10,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2020-12-09 04:41:10,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:10,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93456697] [2020-12-09 04:41:10,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_235d07da-e207-4032-8cd4-a3e170a35b85/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:41:10,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:41:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:41:10,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:41:10,572 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 04:41:10,572 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:41:10,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:41:10 BoogieIcfgContainer [2020-12-09 04:41:10,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:41:10,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:41:10,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:41:10,826 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:41:10,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:41:08" (3/4) ... [2020-12-09 04:41:10,828 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 04:41:10,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:41:10,830 INFO L168 Benchmark]: Toolchain (without parser) took 3280.92 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 36.1 MB in the beginning and 60.3 MB in the end (delta: -24.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:10,830 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 39.6 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:41:10,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.11 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 40.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:10,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.81 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 38.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:41:10,831 INFO L168 Benchmark]: Boogie Preprocessor took 20.71 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 37.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:10,832 INFO L168 Benchmark]: RCFGBuilder took 331.26 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.0 MB in the beginning and 47.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:10,832 INFO L168 Benchmark]: TraceAbstraction took 2696.95 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 47.6 MB in the beginning and 60.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:41:10,833 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 92.3 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:41:10,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 39.6 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.11 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 40.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.81 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 38.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.71 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 37.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 331.26 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.0 MB in the beginning and 47.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2696.95 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 47.6 MB in the beginning and 60.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Witness Printer took 2.72 ms. Allocated memory is still 92.3 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 [L88] COND FALSE !(p1 != 0) [L92] COND FALSE !(p2 != 0) [L96] COND FALSE !(p3 != 0) [L100] COND TRUE p4 != 0 [L101] lk4 = 1 [L104] COND TRUE p5 != 0 [L105] lk5 = 1 [L108] COND TRUE p6 != 0 [L109] lk6 = 1 [L112] COND TRUE p7 != 0 [L113] lk7 = 1 [L116] COND TRUE p8 != 0 [L117] lk8 = 1 [L120] COND TRUE p9 != 0 [L121] lk9 = 1 [L124] COND TRUE p10 != 0 [L125] lk10 = 1 [L128] COND FALSE !(p11 != 0) [L132] COND TRUE p12 != 0 [L133] lk12 = 1 [L136] COND TRUE p13 != 0 [L137] lk13 = 1 [L140] COND TRUE p14 != 0 [L141] lk14 = 1 [L146] COND FALSE !(p1 != 0) [L151] COND FALSE !(p2 != 0) [L219] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 624 SDtfs, 364 SDslu, 282 SDs, 0 SdLazy, 22 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 5121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 317 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 Received shutdown request...