./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 .............................................................................................................................................. 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_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:29,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:29,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:29,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:29,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:29,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:29,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:29,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:29,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:29,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:29,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:29,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:29,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:29,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:29,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:29,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:29,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:29,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:29,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:29,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:29,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:29,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:29,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:29,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:29,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:29,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:29,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:29,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:29,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:29,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:29,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:29,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:29,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:29,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:29,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:29,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:29,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:29,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:29,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:29,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:29,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:29,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 13:06:29,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:29,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:29,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:29,471 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:29,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:29,472 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:29,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:29,472 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:29,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:29,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:29,474 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:29,474 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:29,474 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:29,474 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:29,475 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:29,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:06:29,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:06:29,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:29,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:29,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:29,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:29,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:29,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:29,478 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:06:29,478 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:06:29,478 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:06:29,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:29,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:29,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:29,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:29,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:29,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:29,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:29,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:29,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:29,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:29,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:29,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:29,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:29,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:29,483 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_641c772e-b891-4ada-966e-cc83d8e00503/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 [2020-11-22 13:06:29,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:29,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:29,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:29,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:29,775 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:29,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2020-11-22 13:06:29,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/6b14da09e/e90412dc262e483b8483a1171563d174/FLAG3b75b8ad8 [2020-11-22 13:06:30,419 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:30,424 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2020-11-22 13:06:30,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/6b14da09e/e90412dc262e483b8483a1171563d174/FLAG3b75b8ad8 [2020-11-22 13:06:30,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/6b14da09e/e90412dc262e483b8483a1171563d174 [2020-11-22 13:06:30,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:30,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:30,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:30,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:30,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:30,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c276180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30, skipping insertion in model container [2020-11-22 13:06:30,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:30,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:31,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:31,234 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:06:31,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ad638f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31, skipping insertion in model container [2020-11-22 13:06:31,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:31,235 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:06:31,238 INFO L168 Benchmark]: Toolchain (without parser) took 549.11 ms. Allocated memory is still 88.1 MB. Free memory was 62.4 MB in the beginning and 49.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:31,240 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 71.3 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:31,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.86 ms. Allocated memory is still 88.1 MB. Free memory was 62.2 MB in the beginning and 49.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:31,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 71.3 MB. Free memory was 37.8 MB in the beginning and 37.8 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.86 ms. Allocated memory is still 88.1 MB. Free memory was 62.2 MB in the beginning and 49.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:33,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:33,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:33,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:33,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:33,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:33,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:33,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:33,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:33,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:33,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:33,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:33,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:33,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:33,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:33,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:33,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:33,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:33,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:33,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:33,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:33,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:33,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:33,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:33,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:33,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:33,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:33,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:33,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:33,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:33,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:33,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:33,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:33,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:33,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:33,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:33,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:33,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:33,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:33,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:33,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:33,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:33,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:33,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:33,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:33,627 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:33,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:33,628 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:33,628 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:33,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:33,629 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:33,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:06:33,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:06:33,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:33,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:33,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:33,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:33,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:33,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:33,633 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:06:33,633 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:06:33,633 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:06:33,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:33,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:33,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:33,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:33,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:33,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:33,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:33,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:33,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:33,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:33,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:33,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:33,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:33,646 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:33,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:33,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:33,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:33,647 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_641c772e-b891-4ada-966e-cc83d8e00503/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 [2020-11-22 13:06:34,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:34,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:34,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:34,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:34,039 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:34,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2020-11-22 13:06:34,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/fe9d1af3d/45a1235b0fe84237bb362fe5e9e91972/FLAG4794e5e45 [2020-11-22 13:06:34,650 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:34,651 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2020-11-22 13:06:34,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/fe9d1af3d/45a1235b0fe84237bb362fe5e9e91972/FLAG4794e5e45 [2020-11-22 13:06:34,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/data/fe9d1af3d/45a1235b0fe84237bb362fe5e9e91972 [2020-11-22 13:06:34,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:34,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:34,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:34,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:34,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:34,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:34" (1/1) ... [2020-11-22 13:06:34,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12890864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:34, skipping insertion in model container [2020-11-22 13:06:34,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:34" (1/1) ... [2020-11-22 13:06:34,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:35,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:35,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:35,560 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:06:35,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:35,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:35,645 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:35,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:35,828 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:35,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35 WrapperNode [2020-11-22 13:06:35,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:35,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:35,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:35,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:35,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:35,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:35,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:35,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:35,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:35,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:35,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:35,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:35,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:06:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-22 13:06:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:36,394 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:36,395 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-22 13:06:36,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36 BoogieIcfgContainer [2020-11-22 13:06:36,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:36,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:36,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:36,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:36,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:34" (1/3) ... [2020-11-22 13:06:36,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765bcef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (2/3) ... [2020-11-22 13:06:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765bcef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/3) ... [2020-11-22 13:06:36,405 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test1-3.i [2020-11-22 13:06:36,416 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:36,420 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-22 13:06:36,432 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:06:36,465 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:36,466 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:06:36,466 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:36,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:36,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:36,466 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:36,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:36,466 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-22 13:06:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:06:36,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:36,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:06:36,485 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:36,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:36,491 INFO L82 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2020-11-22 13:06:36,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:36,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317419860] [2020-11-22 13:06:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:36,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:06:36,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:36,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:36,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317419860] [2020-11-22 13:06:36,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:36,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:06:36,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037347525] [2020-11-22 13:06:36,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:36,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:36,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:36,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:36,755 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-11-22 13:06:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:36,802 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-11-22 13:06:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:36,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-22 13:06:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:36,811 INFO L225 Difference]: With dead ends: 13 [2020-11-22 13:06:36,811 INFO L226 Difference]: Without dead ends: 11 [2020-11-22 13:06:36,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-22 13:06:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-22 13:06:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-22 13:06:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-22 13:06:36,840 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2020-11-22 13:06:36,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:36,841 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-22 13:06:36,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-22 13:06:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:06:36,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:36,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:06:37,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:37,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:37,062 INFO L82 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2020-11-22 13:06:37,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:37,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126444343] [2020-11-22 13:06:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:37,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-22 13:06:37,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126444343] [2020-11-22 13:06:37,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:37,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2020-11-22 13:06:37,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754754894] [2020-11-22 13:06:37,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:06:37,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:37,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:06:37,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:37,246 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2020-11-22 13:06:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:37,392 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-11-22 13:06:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:06:37,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-11-22 13:06:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:37,395 INFO L225 Difference]: With dead ends: 17 [2020-11-22 13:06:37,395 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 13:06:37,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 13:06:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2020-11-22 13:06:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-22 13:06:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-22 13:06:37,399 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2020-11-22 13:06:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:37,399 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-22 13:06:37,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:06:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-22 13:06:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:06:37,400 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:37,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:37,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:37,611 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:37,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:37,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965349, now seen corresponding path program 1 times [2020-11-22 13:06:37,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:37,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546453753] [2020-11-22 13:06:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:37,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:06:37,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:37,708 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-22 13:06:37,709 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:37,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:37,713 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:37,713 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-22 13:06:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546453753] [2020-11-22 13:06:37,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:37,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:06:37,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503085439] [2020-11-22 13:06:37,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:37,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:37,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:37,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:37,770 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2020-11-22 13:06:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:37,843 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-22 13:06:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:37,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-22 13:06:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:37,845 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:06:37,845 INFO L226 Difference]: Without dead ends: 14 [2020-11-22 13:06:37,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-22 13:06:37,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-22 13:06:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-22 13:06:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-22 13:06:37,849 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2020-11-22 13:06:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:37,849 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-11-22 13:06:37,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-22 13:06:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:06:37,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:37,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:38,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:06:38,051 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:38,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812391, now seen corresponding path program 1 times [2020-11-22 13:06:38,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:38,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006319973] [2020-11-22 13:06:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:38,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:06:38,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006319973] [2020-11-22 13:06:38,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:38,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:06:38,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973548437] [2020-11-22 13:06:38,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:38,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:38,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:38,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:38,127 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2020-11-22 13:06:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:38,163 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-11-22 13:06:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:38,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-22 13:06:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:38,164 INFO L225 Difference]: With dead ends: 15 [2020-11-22 13:06:38,164 INFO L226 Difference]: Without dead ends: 15 [2020-11-22 13:06:38,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-22 13:06:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 9. [2020-11-22 13:06:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-22 13:06:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-22 13:06:38,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-22 13:06:38,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:38,167 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-22 13:06:38,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-22 13:06:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:38,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:38,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:38,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:06:38,369 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:38,370 INFO L82 PathProgramCache]: Analyzing trace with hash 119351020, now seen corresponding path program 1 times [2020-11-22 13:06:38,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:38,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062798906] [2020-11-22 13:06:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:38,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:06:38,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:38,488 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:38,489 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-22 13:06:38,489 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:38,513 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-22 13:06:38,517 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:38,522 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-22 13:06:38,522 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-11-22 13:06:38,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:38,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:42,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062798906] [2020-11-22 13:06:42,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:42,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2020-11-22 13:06:42,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765197482] [2020-11-22 13:06:42,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-22 13:06:42,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:42,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-22 13:06:42,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=77, Unknown=2, NotChecked=0, Total=110 [2020-11-22 13:06:42,860 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 11 states. [2020-11-22 13:06:53,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:53,276 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-22 13:06:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:53,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2020-11-22 13:06:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:53,278 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:06:53,278 INFO L226 Difference]: Without dead ends: 9 [2020-11-22 13:06:53,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=47, Invalid=107, Unknown=2, NotChecked=0, Total=156 [2020-11-22 13:06:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-22 13:06:53,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-22 13:06:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-22 13:06:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-11-22 13:06:53,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2020-11-22 13:06:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:53,281 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-11-22 13:06:53,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-22 13:06:53,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-11-22 13:06:53,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:53,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:53,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:53,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:06:53,482 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash 176609322, now seen corresponding path program 1 times [2020-11-22 13:06:53,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:53,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150898340] [2020-11-22 13:06:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/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 [2020-11-22 13:06:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:53,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:53,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:53,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:53,542 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-11-22 13:06:53,543 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,555 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-11-22 13:06:53,557 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-22 13:06:53,557 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-11-22 13:06:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:53,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:53,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150898340] [2020-11-22 13:06:53,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:53,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 9 [2020-11-22 13:06:53,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949351305] [2020-11-22 13:06:53,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-22 13:06:53,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:53,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-22 13:06:53,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:06:53,763 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 11 states. [2020-11-22 13:06:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:53,826 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-11-22 13:06:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:53,826 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2020-11-22 13:06:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:53,827 INFO L225 Difference]: With dead ends: 8 [2020-11-22 13:06:53,827 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:53,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:53,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-22 13:06:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:53,828 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:53,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-22 13:06:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:53,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:54,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:06:54,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:54 BoogieIcfgContainer [2020-11-22 13:06:54,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:54,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:54,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:54,033 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:54,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/4) ... [2020-11-22 13:06:54,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:54,045 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:06:54,045 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:54,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:54,093 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_641c772e-b891-4ada-966e-cc83d8e00503/bin/utaipan/witness.graphml [2020-11-22 13:06:54,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:54,095 INFO L168 Benchmark]: Toolchain (without parser) took 19130.20 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 57.3 MB in the beginning and 33.8 MB in the end (delta: 23.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,095 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:54,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.18 ms. Allocated memory is still 73.4 MB. Free memory was 57.0 MB in the beginning and 52.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.17 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 50.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,097 INFO L168 Benchmark]: Boogie Preprocessor took 57.48 ms. Allocated memory is still 73.4 MB. Free memory was 50.7 MB in the beginning and 49.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,097 INFO L168 Benchmark]: RCFGBuilder took 438.90 ms. Allocated memory is still 73.4 MB. Free memory was 49.4 MB in the beginning and 35.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,098 INFO L168 Benchmark]: TraceAbstraction took 17634.17 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 36.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,098 INFO L168 Benchmark]: Witness Printer took 61.04 ms. Allocated memory is still 88.1 MB. Free memory was 36.6 MB in the beginning and 33.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:54,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 864.18 ms. Allocated memory is still 73.4 MB. Free memory was 57.0 MB in the beginning and 52.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.17 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 50.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.48 ms. Allocated memory is still 73.4 MB. Free memory was 50.7 MB in the beginning and 49.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 438.90 ms. Allocated memory is still 73.4 MB. Free memory was 49.4 MB in the beginning and 35.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17634.17 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 36.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 61.04 ms. Allocated memory is still 88.1 MB. Free memory was 36.6 MB in the beginning and 33.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 761]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 759]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 759]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 759]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 76 SDslu, 37 SDs, 0 SdLazy, 120 SolverSat, 14 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 15 QuantifiedInterpolants, 3051 SizeOfPredicates, 15 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 proved your program to be correct! Received shutdown request...