./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-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04dfa849b43716e8587b0fc4953cadbe3968c4e3 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 [2020-12-09 08:39:52,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:39:52,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:39:52,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:39:52,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:39:52,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:39:52,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:39:52,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:39:52,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:39:52,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:39:52,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:39:52,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:39:52,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:39:52,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:39:52,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:39:52,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:39:52,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:39:52,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:39:52,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:39:52,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:39:52,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:39:52,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:39:52,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:39:52,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:39:52,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:39:52,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:39:52,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:39:52,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:39:52,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:39:52,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:39:52,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:39:52,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:39:52,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:39:52,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:39:52,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:39:52,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:39:52,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:39:52,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:39:52,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:39:52,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:39:52,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:39:52,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 08:39:52,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:39:52,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:39:52,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:39:52,100 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:39:52,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:39:52,100 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:39:52,100 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:39:52,100 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:39:52,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:39:52,101 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:39:52,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:39:52,101 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:39:52,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:39:52,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:39:52,101 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:39:52,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 08:39:52,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:39:52,102 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:39:52,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:39:52,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:39:52,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:39:52,104 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2020-12-09 08:39:52,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:39:52,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:39:52,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:39:52,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:39:52,298 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:39:52,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-09 08:39:52,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/e2840cf82/dfb7938c4956430e92840ee3fa06cb78/FLAG65f38159c [2020-12-09 08:39:52,711 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:39:52,712 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-09 08:39:52,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/e2840cf82/dfb7938c4956430e92840ee3fa06cb78/FLAG65f38159c [2020-12-09 08:39:53,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/e2840cf82/dfb7938c4956430e92840ee3fa06cb78 [2020-12-09 08:39:53,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:39:53,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:39:53,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:39:53,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:39:53,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:39:53,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb42ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53, skipping insertion in model container [2020-12-09 08:39:53,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:39:53,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:39:53,274 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-09 08:39:53,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:39:53,283 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:39:53,303 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-09 08:39:53,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:39:53,313 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:39:53,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53 WrapperNode [2020-12-09 08:39:53,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:39:53,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:39:53,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:39:53,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:39:53,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:39:53,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:39:53,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:39:53,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:39:53,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... [2020-12-09 08:39:53,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:39:53,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:39:53,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:39:53,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:39:53,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:39:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:39:53,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:39:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 08:39:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:39:53,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:39:53,915 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 08:39:53,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:53 BoogieIcfgContainer [2020-12-09 08:39:53,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:39:53,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:39:53,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:39:53,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:39:53,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:39:53" (1/3) ... [2020-12-09 08:39:53,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89846bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:39:53, skipping insertion in model container [2020-12-09 08:39:53,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:53" (2/3) ... [2020-12-09 08:39:53,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89846bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:39:53, skipping insertion in model container [2020-12-09 08:39:53,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:53" (3/3) ... [2020-12-09 08:39:53,925 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-12-09 08:39:53,934 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:39:53,937 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 08:39:53,944 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 08:39:53,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:39:53,958 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 08:39:53,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:39:53,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:39:53,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:39:53,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:39:53,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:39:53,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:39:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-12-09 08:39:53,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 08:39:53,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:53,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 08:39:53,972 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:53,976 INFO L82 PathProgramCache]: Analyzing trace with hash 9647635, now seen corresponding path program 1 times [2020-12-09 08:39:53,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:39:53,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863799954] [2020-12-09 08:39:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:39:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:54,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863799954] [2020-12-09 08:39:54,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:54,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:39:54,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385177437] [2020-12-09 08:39:54,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 08:39:54,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:39:54,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 08:39:54,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:39:54,092 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-12-09 08:39:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:54,101 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2020-12-09 08:39:54,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 08:39:54,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-09 08:39:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:54,109 INFO L225 Difference]: With dead ends: 39 [2020-12-09 08:39:54,109 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 08:39:54,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:39:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 08:39:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-09 08:39:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-09 08:39:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 67 transitions. [2020-12-09 08:39:54,133 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 67 transitions. Word has length 4 [2020-12-09 08:39:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:54,134 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 67 transitions. [2020-12-09 08:39:54,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 08:39:54,134 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2020-12-09 08:39:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 08:39:54,134 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:54,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 08:39:54,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 08:39:54,135 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:54,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:54,135 INFO L82 PathProgramCache]: Analyzing trace with hash 290335554, now seen corresponding path program 1 times [2020-12-09 08:39:54,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:39:54,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169089310] [2020-12-09 08:39:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:39:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:54,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169089310] [2020-12-09 08:39:54,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:54,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 08:39:54,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677461586] [2020-12-09 08:39:54,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:54,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:39:54,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:54,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:54,174 INFO L87 Difference]: Start difference. First operand 38 states and 67 transitions. Second operand 3 states. [2020-12-09 08:39:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:54,179 INFO L93 Difference]: Finished difference Result 37 states and 66 transitions. [2020-12-09 08:39:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:54,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 08:39:54,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:54,180 INFO L225 Difference]: With dead ends: 37 [2020-12-09 08:39:54,180 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 08:39:54,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 08:39:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 08:39:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 08:39:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 64 transitions. [2020-12-09 08:39:54,185 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 64 transitions. Word has length 5 [2020-12-09 08:39:54,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:54,185 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 64 transitions. [2020-12-09 08:39:54,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2020-12-09 08:39:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 08:39:54,185 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:54,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 08:39:54,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 08:39:54,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:54,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:54,186 INFO L82 PathProgramCache]: Analyzing trace with hash 419277408, now seen corresponding path program 1 times [2020-12-09 08:39:54,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:39:54,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066956081] [2020-12-09 08:39:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:39:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:39:54,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:39:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:39:54,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:39:54,254 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 08:39:54,255 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 08:39:54,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 08:39:54,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:39:54 BoogieIcfgContainer [2020-12-09 08:39:54,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:39:54,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:39:54,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:39:54,285 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:39:54,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:53" (3/4) ... [2020-12-09 08:39:54,288 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 08:39:54,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:39:54,290 INFO L168 Benchmark]: Toolchain (without parser) took 1157.85 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 83.7 MB in the end (delta: -11.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:54,291 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 88.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:54,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.34 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 84.5 MB in the end (delta: -12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:54,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.88 ms. Allocated memory is still 109.1 MB. Free memory was 84.0 MB in the beginning and 82.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:54,293 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 ms. Allocated memory is still 109.1 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:54,293 INFO L168 Benchmark]: RCFGBuilder took 549.50 ms. Allocated memory is still 109.1 MB. Free memory was 81.0 MB in the beginning and 69.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:54,294 INFO L168 Benchmark]: TraceAbstraction took 364.83 ms. Allocated memory is still 109.1 MB. Free memory was 68.8 MB in the beginning and 83.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:54,294 INFO L168 Benchmark]: Witness Printer took 3.74 ms. Allocated memory is still 109.1 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:54,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 88.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 181.34 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 84.5 MB in the end (delta: -12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.88 ms. Allocated memory is still 109.1 MB. Free memory was 84.0 MB in the beginning and 82.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.69 ms. Allocated memory is still 109.1 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 549.50 ms. Allocated memory is still 109.1 MB. Free memory was 81.0 MB in the beginning and 69.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 364.83 ms. Allocated memory is still 109.1 MB. Free memory was 68.8 MB in the beginning and 83.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.74 ms. Allocated memory is still 109.1 MB. Free memory is still 83.7 MB. 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: 0.2s, 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, 0.0s 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 [2020-12-09 08:39:55,950 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-12-09 08:39:55,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:39:55,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:39:55,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:39:55,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:39:55,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:39:55,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:39:55,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:39:55,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:39:55,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:39:55,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:39:55,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:39:55,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:39:56,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:39:56,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:39:56,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:39:56,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:39:56,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:39:56,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:39:56,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:39:56,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:39:56,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:39:56,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:39:56,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:39:56,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:39:56,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:39:56,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:39:56,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:39:56,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:39:56,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:39:56,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 08:39:56,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:39:56,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:39:56,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:39:56,029 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:39:56,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:39:56,030 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:39:56,030 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:39:56,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:39:56,030 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:39:56,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 08:39:56,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:39:56,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:39:56,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:39:56,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:39:56,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 08:39:56,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:39:56,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:39:56,034 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2020-12-09 08:39:56,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:39:56,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:39:56,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:39:56,280 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:39:56,280 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:39:56,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-09 08:39:56,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/82afbb4dc/fe35f49926004004b0db8a9dc00c061f/FLAG49095b80e [2020-12-09 08:39:56,726 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:39:56,727 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c [2020-12-09 08:39:56,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/82afbb4dc/fe35f49926004004b0db8a9dc00c061f/FLAG49095b80e [2020-12-09 08:39:56,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/data/82afbb4dc/fe35f49926004004b0db8a9dc00c061f [2020-12-09 08:39:56,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:39:56,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:39:56,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:39:56,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:39:56,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:39:56,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:56,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d627072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56, skipping insertion in model container [2020-12-09 08:39:56,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:56,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:39:56,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:39:56,893 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-09 08:39:56,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:39:56,909 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:39:56,946 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/sv-benchmarks/c/locks/test_locks_15-1.c[5654,5667] [2020-12-09 08:39:56,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:39:56,959 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:39:56,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56 WrapperNode [2020-12-09 08:39:56,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:39:56,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:39:56,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:39:56,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:39:56,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:56,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:39:57,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:39:57,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:39:57,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:39:57,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... [2020-12-09 08:39:57,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:39:57,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:39:57,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:39:57,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:39:57,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:39:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:39:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:39:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 08:39:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:39:57,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:39:57,394 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 08:39:57,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:57 BoogieIcfgContainer [2020-12-09 08:39:57,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:39:57,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:39:57,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:39:57,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:39:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:39:56" (1/3) ... [2020-12-09 08:39:57,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a30ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:39:57, skipping insertion in model container [2020-12-09 08:39:57,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:39:56" (2/3) ... [2020-12-09 08:39:57,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a30ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:39:57, skipping insertion in model container [2020-12-09 08:39:57,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:57" (3/3) ... [2020-12-09 08:39:57,401 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-12-09 08:39:57,411 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:39:57,413 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 08:39:57,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 08:39:57,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:39:57,436 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 08:39:57,437 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:39:57,437 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:39:57,437 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:39:57,437 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:39:57,437 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:39:57,437 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:39:57,447 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-12-09 08:39:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 08:39:57,451 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:57,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 08:39:57,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:57,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:57,456 INFO L82 PathProgramCache]: Analyzing trace with hash 28959891, now seen corresponding path program 1 times [2020-12-09 08:39:57,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:57,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019184292] [2020-12-09 08:39:57,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 08:39:57,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:57,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:57,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019184292] [2020-12-09 08:39:57,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:57,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:39:57,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816828244] [2020-12-09 08:39:57,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 08:39:57,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:57,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 08:39:57,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:39:57,545 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-12-09 08:39:57,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:57,556 INFO L93 Difference]: Finished difference Result 56 states and 100 transitions. [2020-12-09 08:39:57,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 08:39:57,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-09 08:39:57,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:57,563 INFO L225 Difference]: With dead ends: 56 [2020-12-09 08:39:57,563 INFO L226 Difference]: Without dead ends: 54 [2020-12-09 08:39:57,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 08:39:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-09 08:39:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-09 08:39:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-09 08:39:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-12-09 08:39:57,590 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 5 [2020-12-09 08:39:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:57,590 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-12-09 08:39:57,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 08:39:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-12-09 08:39:57,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 08:39:57,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:57,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 08:39:57,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 08:39:57,792 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:57,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:57,793 INFO L82 PathProgramCache]: Analyzing trace with hash 889700683, now seen corresponding path program 1 times [2020-12-09 08:39:57,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:57,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328527850] [2020-12-09 08:39:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:57,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:39:57,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:57,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:57,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328527850] [2020-12-09 08:39:57,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:57,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:39:57,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672799958] [2020-12-09 08:39:57,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:57,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:57,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:57,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:57,844 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 3 states. [2020-12-09 08:39:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:57,855 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-12-09 08:39:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:57,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 08:39:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:57,857 INFO L225 Difference]: With dead ends: 53 [2020-12-09 08:39:57,858 INFO L226 Difference]: Without dead ends: 51 [2020-12-09 08:39:57,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-09 08:39:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-09 08:39:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-09 08:39:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2020-12-09 08:39:57,863 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 6 [2020-12-09 08:39:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:57,863 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2020-12-09 08:39:57,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2020-12-09 08:39:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 08:39:57,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:57,864 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] [2020-12-09 08:39:58,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,066 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2020-12-09 08:39:58,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:58,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622179438] [2020-12-09 08:39:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:58,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:39:58,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:58,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:58,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622179438] [2020-12-09 08:39:58,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:58,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:39:58,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241948869] [2020-12-09 08:39:58,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:58,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:58,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:58,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:58,248 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand 3 states. [2020-12-09 08:39:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:58,265 INFO L93 Difference]: Finished difference Result 99 states and 184 transitions. [2020-12-09 08:39:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:58,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 08:39:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:58,267 INFO L225 Difference]: With dead ends: 99 [2020-12-09 08:39:58,267 INFO L226 Difference]: Without dead ends: 99 [2020-12-09 08:39:58,267 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 [2020-12-09 08:39:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-09 08:39:58,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-12-09 08:39:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-09 08:39:58,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2020-12-09 08:39:58,277 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2020-12-09 08:39:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:58,277 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2020-12-09 08:39:58,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2020-12-09 08:39:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 08:39:58,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:58,278 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] [2020-12-09 08:39:58,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,479 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:58,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:58,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2020-12-09 08:39:58,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:58,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150621380] [2020-12-09 08:39:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:58,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:39:58,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:58,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:58,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150621380] [2020-12-09 08:39:58,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:58,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:39:58,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079559857] [2020-12-09 08:39:58,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:58,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:58,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:58,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:58,662 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2020-12-09 08:39:58,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:58,673 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2020-12-09 08:39:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:58,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 08:39:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:58,674 INFO L225 Difference]: With dead ends: 98 [2020-12-09 08:39:58,674 INFO L226 Difference]: Without dead ends: 98 [2020-12-09 08:39:58,675 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 [2020-12-09 08:39:58,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-09 08:39:58,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-12-09 08:39:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-09 08:39:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2020-12-09 08:39:58,682 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2020-12-09 08:39:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:58,682 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2020-12-09 08:39:58,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2020-12-09 08:39:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 08:39:58,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:58,683 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] [2020-12-09 08:39:58,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2020-12-09 08:39:58,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:58,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505177735] [2020-12-09 08:39:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:58,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:39:58,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:58,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:58,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505177735] [2020-12-09 08:39:58,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:58,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:39:58,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103814204] [2020-12-09 08:39:58,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:58,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:58,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:58,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:58,988 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand 3 states. [2020-12-09 08:39:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:58,999 INFO L93 Difference]: Finished difference Result 137 states and 251 transitions. [2020-12-09 08:39:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:58,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 08:39:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:59,000 INFO L225 Difference]: With dead ends: 137 [2020-12-09 08:39:59,000 INFO L226 Difference]: Without dead ends: 137 [2020-12-09 08:39:59,001 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 [2020-12-09 08:39:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-09 08:39:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2020-12-09 08:39:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-09 08:39:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2020-12-09 08:39:59,008 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2020-12-09 08:39:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:59,008 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2020-12-09 08:39:59,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2020-12-09 08:39:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 08:39:59,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:59,009 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] [2020-12-09 08:39:59,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 08:39:59,210 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:59,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:59,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2020-12-09 08:39:59,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:59,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077907212] [2020-12-09 08:39:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:39:59,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:39:59,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:39:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:39:59,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:39:59,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077907212] [2020-12-09 08:39:59,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:39:59,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:39:59,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242529593] [2020-12-09 08:39:59,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:39:59,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:39:59,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:39:59,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:39:59,329 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand 3 states. [2020-12-09 08:39:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:39:59,338 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2020-12-09 08:39:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:39:59,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 08:39:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:39:59,340 INFO L225 Difference]: With dead ends: 135 [2020-12-09 08:39:59,340 INFO L226 Difference]: Without dead ends: 135 [2020-12-09 08:39:59,340 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 [2020-12-09 08:39:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-12-09 08:39:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-12-09 08:39:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-09 08:39:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2020-12-09 08:39:59,346 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2020-12-09 08:39:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:39:59,347 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2020-12-09 08:39:59,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:39:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2020-12-09 08:39:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 08:39:59,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:39:59,348 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] [2020-12-09 08:39:59,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 08:39:59,549 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-12-09 08:39:59,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:39:59,551 INFO L82 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2020-12-09 08:39:59,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:39:59,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375517154] [2020-12-09 08:39:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee00fa5c-c359-472a-8ee6-caa779358478/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 08:39:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:39:59,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:39:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 08:39:59,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 08:39:59,685 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 08:39:59,685 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 08:39:59,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 08:39:59,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:39:59 BoogieIcfgContainer [2020-12-09 08:39:59,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:39:59,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:39:59,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:39:59,948 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:39:59,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:39:57" (3/4) ... [2020-12-09 08:39:59,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 08:39:59,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:39:59,952 INFO L168 Benchmark]: Toolchain (without parser) took 3205.85 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 50.8 MB in the beginning and 47.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:59,952 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 67.1 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 94.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:59,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.74 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 50.0 MB in the end (delta: 612.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:59,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:59,954 INFO L168 Benchmark]: Boogie Preprocessor took 31.48 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 46.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:59,954 INFO L168 Benchmark]: RCFGBuilder took 361.87 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 62.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:59,955 INFO L168 Benchmark]: TraceAbstraction took 2550.98 ms. Allocated memory is still 88.1 MB. Free memory was 62.3 MB in the beginning and 47.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-12-09 08:39:59,955 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 88.1 MB. Free memory was 47.7 MB in the beginning and 47.0 MB in the end (delta: 659.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:39:59,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 67.1 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 94.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.74 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 50.0 MB in the end (delta: 612.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.48 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 46.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 361.87 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 62.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2550.98 ms. Allocated memory is still 88.1 MB. Free memory was 62.3 MB in the beginning and 47.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 2.84 ms. Allocated memory is still 88.1 MB. Free memory was 47.7 MB in the beginning and 47.0 MB in the end (delta: 659.7 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 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: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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...