./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.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_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI --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 04dfa849b43716e8587b0fc4953cadbe3968c4e3 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI --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 04dfa849b43716e8587b0fc4953cadbe3968c4e3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:23:35,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:35,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:35,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:35,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:35,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:35,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:35,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:35,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:35,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:35,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:35,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:35,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:35,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:35,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:35,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:35,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:35,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:35,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:35,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:35,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:35,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:35,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:35,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:35,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:35,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:35,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:35,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:35,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:35,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:35,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:35,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:35,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:35,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:35,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:35,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:35,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:35,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:35,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:35,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:35,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:35,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:23:35,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:35,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:35,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:35,424 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:35,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:35,424 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:35,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:35,425 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:35,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:35,425 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:35,425 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:35,426 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:35,426 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:35,426 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:35,426 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:35,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:23:35,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:23:35,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:35,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:35,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:23:35,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:35,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:35,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:35,429 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:23:35,429 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:23:35,430 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:23:35,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:35,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:35,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:35,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:35,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:35,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:35,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:35,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:35,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:35,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:35,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:35,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:35,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:35,433 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2021-10-11 02:23:35,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:35,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:35,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:35,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:35,763 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:35,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:23:35,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/9d4fa2cca/a7bf2417405e4b86a59881ecc8bda3c3/FLAG4f9953c24 [2021-10-11 02:23:36,415 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:36,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:23:36,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/9d4fa2cca/a7bf2417405e4b86a59881ecc8bda3c3/FLAG4f9953c24 [2021-10-11 02:23:36,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/9d4fa2cca/a7bf2417405e4b86a59881ecc8bda3c3 [2021-10-11 02:23:36,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:36,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:36,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:36,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:36,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:36,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:36" (1/1) ... [2021-10-11 02:23:36,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a2cd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:36, skipping insertion in model container [2021-10-11 02:23:36,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:36" (1/1) ... [2021-10-11 02:23:36,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:36,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:37,054 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:23:37,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:37,067 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:37,096 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:23:37,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:37,111 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:37,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37 WrapperNode [2021-10-11 02:23:37,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:37,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:37,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:37,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:37,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:37,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:37,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:37,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:37,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... [2021-10-11 02:23:37,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:37,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:37,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:37,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:37,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:23:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:38,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:38,031 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:23:38,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:38 BoogieIcfgContainer [2021-10-11 02:23:38,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:38,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:38,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:38,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:36" (1/3) ... [2021-10-11 02:23:38,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505d7ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:38, skipping insertion in model container [2021-10-11 02:23:38,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:37" (2/3) ... [2021-10-11 02:23:38,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505d7ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:38, skipping insertion in model container [2021-10-11 02:23:38,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:38" (3/3) ... [2021-10-11 02:23:38,041 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-10-11 02:23:38,055 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:38,059 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:23:38,070 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:23:38,090 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:38,090 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:23:38,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:38,090 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:38,090 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:38,091 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:38,091 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:38,091 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2021-10-11 02:23:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:23:38,110 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:38,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:23:38,111 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:38,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:38,116 INFO L82 PathProgramCache]: Analyzing trace with hash 9647635, now seen corresponding path program 1 times [2021-10-11 02:23:38,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:38,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910451729] [2021-10-11 02:23:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:38,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910451729] [2021-10-11 02:23:38,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:38,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:38,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254373042] [2021-10-11 02:23:38,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:38,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:38,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:38,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:38,285 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2021-10-11 02:23:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:38,299 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2021-10-11 02:23:38,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:38,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2021-10-11 02:23:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:38,310 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:23:38,310 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 02:23:38,312 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 [2021-10-11 02:23:38,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 02:23:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-11 02:23:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 02:23:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 67 transitions. [2021-10-11 02:23:38,346 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 67 transitions. Word has length 4 [2021-10-11 02:23:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:38,346 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 67 transitions. [2021-10-11 02:23:38,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2021-10-11 02:23:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:23:38,347 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:38,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:23:38,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:23:38,348 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:38,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:38,348 INFO L82 PathProgramCache]: Analyzing trace with hash 290335554, now seen corresponding path program 1 times [2021-10-11 02:23:38,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:38,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676477506] [2021-10-11 02:23:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:38,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676477506] [2021-10-11 02:23:38,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:38,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:23:38,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886573996] [2021-10-11 02:23:38,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:38,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:38,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:38,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:38,438 INFO L87 Difference]: Start difference. First operand 38 states and 67 transitions. Second operand 3 states. [2021-10-11 02:23:38,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:38,444 INFO L93 Difference]: Finished difference Result 37 states and 66 transitions. [2021-10-11 02:23:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:38,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:23:38,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:38,446 INFO L225 Difference]: With dead ends: 37 [2021-10-11 02:23:38,446 INFO L226 Difference]: Without dead ends: 35 [2021-10-11 02:23:38,447 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 [2021-10-11 02:23:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-11 02:23:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-11 02:23:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-10-11 02:23:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 64 transitions. [2021-10-11 02:23:38,453 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 64 transitions. Word has length 5 [2021-10-11 02:23:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:38,453 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 64 transitions. [2021-10-11 02:23:38,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2021-10-11 02:23:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:38,454 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:38,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:38,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:23:38,455 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:38,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:38,455 INFO L82 PathProgramCache]: Analyzing trace with hash 419277408, now seen corresponding path program 1 times [2021-10-11 02:23:38,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:38,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475270541] [2021-10-11 02:23:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:38,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:38,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:38,547 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:23:38,547 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:38,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:23:38,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:38 BoogieIcfgContainer [2021-10-11 02:23:38,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:38,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:38,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:38,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:38,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:38" (3/4) ... [2021-10-11 02:23:38,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:23:38,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:38,603 INFO L168 Benchmark]: Toolchain (without parser) took 1809.89 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 64.1 MB in the beginning and 74.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:38,605 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 80.2 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:38,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.13 ms. Allocated memory is still 104.9 MB. Free memory was 63.9 MB in the beginning and 78.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:38,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:38,609 INFO L168 Benchmark]: Boogie Preprocessor took 27.91 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:38,611 INFO L168 Benchmark]: RCFGBuilder took 851.32 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 75.4 MB in the beginning and 103.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:38,612 INFO L168 Benchmark]: TraceAbstraction took 553.23 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 74.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:38,618 INFO L168 Benchmark]: Witness Printer took 10.18 ms. Allocated memory is still 140.5 MB. Free memory was 74.0 MB in the beginning and 74.0 MB in the end (delta: 2.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:38,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 80.2 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.13 ms. Allocated memory is still 104.9 MB. Free memory was 63.9 MB in the beginning and 78.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.91 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 851.32 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 75.4 MB in the beginning and 103.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 553.23 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 74.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 10.18 ms. Allocated memory is still 140.5 MB. Free memory was 74.0 MB in the beginning and 74.0 MB in the end (delta: 2.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. 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; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND TRUE p3 != 0 [L102] lk3 = 1 [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND FALSE !(p5 != 0) [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND FALSE !(p7 != 0) [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND FALSE !(p14 != 0) [L149] COND TRUE p15 != 0 [L150] lk15 = 1 [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L233] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 134 SDtfs, 62 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-10-11 02:23:41,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:41,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:41,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:41,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:41,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:41,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:41,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:41,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:41,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:41,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:41,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:41,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:41,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:41,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:41,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:41,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:41,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:41,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:41,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:41,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:41,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:41,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:41,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:41,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:41,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:41,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:41,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:41,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:41,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:41,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:41,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:41,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:41,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:41,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:41,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:41,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:41,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:41,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:41,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:41,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:41,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:23:41,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:41,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:41,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:41,315 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:41,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:41,316 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:41,316 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:41,316 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:41,316 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:41,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:23:41,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:23:41,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:41,320 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:23:41,321 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:23:41,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:23:41,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:41,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:41,321 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:23:41,322 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:23:41,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:41,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:41,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:41,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:23:41,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:41,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:41,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:41,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:41,324 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:23:41,324 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:23:41,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:41,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:41,324 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2021-10-11 02:23:41,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:41,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:41,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:41,783 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:41,783 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:41,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:23:41,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/0ed132dc5/3530a118f758473aad121c9d9d865225/FLAGb6b18c37a [2021-10-11 02:23:42,467 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:42,467 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c [2021-10-11 02:23:42,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/0ed132dc5/3530a118f758473aad121c9d9d865225/FLAGb6b18c37a [2021-10-11 02:23:42,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/data/0ed132dc5/3530a118f758473aad121c9d9d865225 [2021-10-11 02:23:42,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:42,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:42,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:42,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:42,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:42,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:42" (1/1) ... [2021-10-11 02:23:42,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1e5821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:42, skipping insertion in model container [2021-10-11 02:23:42,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:42" (1/1) ... [2021-10-11 02:23:42,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:42,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:43,023 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:23:43,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:43,049 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:43,115 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2021-10-11 02:23:43,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:43,129 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:43,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43 WrapperNode [2021-10-11 02:23:43,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:43,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:43,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:43,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:43,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:43,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:43,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:43,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:43,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... [2021-10-11 02:23:43,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:43,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:43,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:43,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:43,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:23:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:43,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:43,770 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:23:43,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:43 BoogieIcfgContainer [2021-10-11 02:23:43,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:43,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:43,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:43,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:43,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:42" (1/3) ... [2021-10-11 02:23:43,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9e3d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:43, skipping insertion in model container [2021-10-11 02:23:43,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:43" (2/3) ... [2021-10-11 02:23:43,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9e3d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:43, skipping insertion in model container [2021-10-11 02:23:43,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:43" (3/3) ... [2021-10-11 02:23:43,780 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2021-10-11 02:23:43,795 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:43,798 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:23:43,809 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:23:43,828 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:43,828 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:23:43,829 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:43,829 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:43,829 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:43,829 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:43,830 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:43,830 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2021-10-11 02:23:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:23:43,866 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:43,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:23:43,870 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:43,876 INFO L82 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2021-10-11 02:23:43,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:43,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017711183] [2021-10-11 02:23:43,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:44,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:23:44,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:44,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:44,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017711183] [2021-10-11 02:23:44,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:44,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:44,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766416140] [2021-10-11 02:23:44,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:44,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:44,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:44,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:44,086 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2021-10-11 02:23:44,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:44,107 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2021-10-11 02:23:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:44,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:23:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:44,132 INFO L225 Difference]: With dead ends: 56 [2021-10-11 02:23:44,132 INFO L226 Difference]: Without dead ends: 54 [2021-10-11 02:23:44,134 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 [2021-10-11 02:23:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-11 02:23:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-11 02:23:44,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-10-11 02:23:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2021-10-11 02:23:44,179 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2021-10-11 02:23:44,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:44,180 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2021-10-11 02:23:44,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2021-10-11 02:23:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:44,181 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:44,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:44,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:23:44,389 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:44,390 INFO L82 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2021-10-11 02:23:44,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:44,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073365579] [2021-10-11 02:23:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:44,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:44,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:44,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:44,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073365579] [2021-10-11 02:23:44,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:44,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:44,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106022573] [2021-10-11 02:23:44,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:44,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:44,517 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 3 states. [2021-10-11 02:23:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:44,534 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2021-10-11 02:23:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:44,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:23:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:44,536 INFO L225 Difference]: With dead ends: 53 [2021-10-11 02:23:44,537 INFO L226 Difference]: Without dead ends: 51 [2021-10-11 02:23:44,537 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 [2021-10-11 02:23:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-11 02:23:44,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-11 02:23:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-11 02:23:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2021-10-11 02:23:44,545 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2021-10-11 02:23:44,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:44,545 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2021-10-11 02:23:44,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2021-10-11 02:23:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:44,546 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:44,547 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, 1] [2021-10-11 02:23:44,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:23:44,763 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:44,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:44,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2021-10-11 02:23:44,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:44,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451660854] [2021-10-11 02:23:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:44,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:44,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:44,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:44,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451660854] [2021-10-11 02:23:44,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:44,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:44,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130977199] [2021-10-11 02:23:44,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:44,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:44,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:44,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:44,869 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand 3 states. [2021-10-11 02:23:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:44,893 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2021-10-11 02:23:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:44,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:23:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:44,896 INFO L225 Difference]: With dead ends: 99 [2021-10-11 02:23:44,897 INFO L226 Difference]: Without dead ends: 99 [2021-10-11 02:23:44,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-11 02:23:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-11 02:23:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-10-11 02:23:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2021-10-11 02:23:44,911 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2021-10-11 02:23:44,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:44,912 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2021-10-11 02:23:44,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2021-10-11 02:23:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:44,913 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:44,913 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, 1] [2021-10-11 02:23:45,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,131 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2021-10-11 02:23:45,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652741085] [2021-10-11 02:23:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:45,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:45,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652741085] [2021-10-11 02:23:45,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:45,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:45,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111848487] [2021-10-11 02:23:45,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:45,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:45,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,282 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2021-10-11 02:23:45,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,310 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2021-10-11 02:23:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:45,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:23:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,318 INFO L225 Difference]: With dead ends: 98 [2021-10-11 02:23:45,318 INFO L226 Difference]: Without dead ends: 98 [2021-10-11 02:23:45,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-11 02:23:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-10-11 02:23:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-11 02:23:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2021-10-11 02:23:45,346 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2021-10-11 02:23:45,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,347 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2021-10-11 02:23:45,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2021-10-11 02:23:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:45,351 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:45,351 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, 1] [2021-10-11 02:23:45,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,558 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2021-10-11 02:23:45,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175548321] [2021-10-11 02:23:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:45,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:45,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175548321] [2021-10-11 02:23:45,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:45,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:45,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882478360] [2021-10-11 02:23:45,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:45,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:45,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:45,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,663 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand 3 states. [2021-10-11 02:23:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,688 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2021-10-11 02:23:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:45,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:23:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,691 INFO L225 Difference]: With dead ends: 137 [2021-10-11 02:23:45,691 INFO L226 Difference]: Without dead ends: 137 [2021-10-11 02:23:45,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-11 02:23:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-10-11 02:23:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-10-11 02:23:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2021-10-11 02:23:45,715 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2021-10-11 02:23:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,719 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2021-10-11 02:23:45,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2021-10-11 02:23:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:45,722 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:45,722 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, 1] [2021-10-11 02:23:45,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,944 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2021-10-11 02:23:45,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306260310] [2021-10-11 02:23:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:46,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:23:46,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:46,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:46,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306260310] [2021-10-11 02:23:46,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:46,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:46,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069999832] [2021-10-11 02:23:46,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:46,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:46,076 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand 3 states. [2021-10-11 02:23:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:46,093 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2021-10-11 02:23:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:46,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:23:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:46,095 INFO L225 Difference]: With dead ends: 135 [2021-10-11 02:23:46,095 INFO L226 Difference]: Without dead ends: 135 [2021-10-11 02:23:46,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-11 02:23:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-10-11 02:23:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-10-11 02:23:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2021-10-11 02:23:46,120 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2021-10-11 02:23:46,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:46,120 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2021-10-11 02:23:46,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2021-10-11 02:23:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:46,124 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:46,124 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, 1] [2021-10-11 02:23:46,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:23:46,343 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:23:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:46,343 INFO L82 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2021-10-11 02:23:46,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:46,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105236666] [2021-10-11 02:23:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23ccb67-7e23-4ed9-a391-df043e9b22df/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:46,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:46,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:46,529 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:23:46,530 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:46,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:23:46,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:46 BoogieIcfgContainer [2021-10-11 02:23:46,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:46,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:46,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:46,807 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:46,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:43" (3/4) ... [2021-10-11 02:23:46,811 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:23:46,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:46,816 INFO L168 Benchmark]: Toolchain (without parser) took 3997.04 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 40.6 MB in the beginning and 40.1 MB in the end (delta: 507.9 kB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,818 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:46,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.28 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 43.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.49 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 41.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:46,820 INFO L168 Benchmark]: Boogie Preprocessor took 30.98 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 40.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,821 INFO L168 Benchmark]: RCFGBuilder took 567.23 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 35.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,823 INFO L168 Benchmark]: TraceAbstraction took 3032.23 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 34.5 MB in the beginning and 40.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,825 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 75.5 MB. Free memory was 40.4 MB in the beginning and 40.1 MB in the end (delta: 360.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:46,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.28 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 43.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.49 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 41.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.98 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 40.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 567.23 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 35.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3032.23 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 34.5 MB in the beginning and 40.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 75.5 MB. Free memory was 40.4 MB in the beginning and 40.1 MB in the end (delta: 360.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 233. 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; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND FALSE !(p3 != 0) [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND TRUE p5 != 0 [L110] lk5 = 1 [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND TRUE p15 != 0 [L150] lk15 = 1 [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L233] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 664 SDtfs, 332 SDslu, 303 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 5709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 329 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...