./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.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_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 a3c246dc22ee025e6722717057cde618bbb130ed .............................................................................................................................................. 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_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 a3c246dc22ee025e6722717057cde618bbb130ed ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:07:37,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:37,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:37,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:37,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:37,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:37,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:37,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:37,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:37,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:37,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:37,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:37,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:37,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:37,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:37,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:37,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:37,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:37,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:37,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:37,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:37,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:37,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:37,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:37,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:37,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:37,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:37,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:37,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:37,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:37,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:37,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:37,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:37,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:37,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:37,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:37,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:37,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:37,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:37,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:37,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:37,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 13:07:37,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:37,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:37,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:37,291 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:37,291 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:37,291 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:37,291 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:37,291 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:37,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:37,292 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:37,292 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:37,292 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:37,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:37,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:37,293 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:37,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:07:37,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:07:37,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:37,294 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:37,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:07:37,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:37,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:37,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:37,295 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:07:37,295 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:07:37,295 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:07:37,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:37,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:37,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:37,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:37,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:37,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:37,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:37,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:37,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:37,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:37,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:37,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:37,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:37,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:37,298 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_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c246dc22ee025e6722717057cde618bbb130ed [2020-11-22 13:07:37,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:37,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:37,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:37,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:37,551 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:37,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-11-22 13:07:37,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/8b8f9b520/7141fb029f264273b680656e8d7fbfa0/FLAGe6522037c [2020-11-22 13:07:38,205 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:38,206 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-11-22 13:07:38,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/8b8f9b520/7141fb029f264273b680656e8d7fbfa0/FLAGe6522037c [2020-11-22 13:07:38,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/8b8f9b520/7141fb029f264273b680656e8d7fbfa0 [2020-11-22 13:07:38,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:38,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:38,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:38,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:38,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:38,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a514353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:38, skipping insertion in model container [2020-11-22 13:07:38,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:38" (1/1) ... [2020-11-22 13:07:38,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:38,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:39,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:39,128 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 13:07:39,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@587ae852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:39, skipping insertion in model container [2020-11-22 13:07:39,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:39,130 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:07:39,133 INFO L168 Benchmark]: Toolchain (without parser) took 627.12 ms. Allocated memory is still 104.9 MB. Free memory was 73.4 MB in the beginning and 80.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:39,134 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 75.5 MB. Free memory is still 36.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:39,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.47 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 80.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:39,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 75.5 MB. Free memory is still 36.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.47 ms. Allocated memory is still 104.9 MB. Free memory was 73.2 MB in the beginning and 80.1 MB in the end (delta: -6.9 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 13:07:41,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:41,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:41,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:41,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:41,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:41,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:41,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:41,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:41,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:41,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:41,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:41,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:41,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:41,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:41,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:41,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:41,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:41,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:41,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:41,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:41,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:41,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:41,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:41,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:41,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:41,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:41,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:41,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:41,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:41,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:41,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:41,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:41,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:41,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:41,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:41,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:41,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:41,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:41,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:41,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:41,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-22 13:07:41,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:41,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:41,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:41,434 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:41,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:41,435 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:41,435 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:41,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:41,435 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:41,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:07:41,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:07:41,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:41,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:41,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:07:41,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:41,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:41,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:41,437 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:07:41,438 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:07:41,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:41,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:41,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:41,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:07:41,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:41,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:41,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:41,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:41,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:41,441 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:07:41,441 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:07:41,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:41,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:41,441 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_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c246dc22ee025e6722717057cde618bbb130ed [2020-11-22 13:07:41,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:41,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:41,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:41,834 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:41,835 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:41,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-11-22 13:07:41,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/a7dbfa58b/d0a225eaab57483ca350600c24d247c8/FLAG6a30e5303 [2020-11-22 13:07:42,447 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:42,448 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-11-22 13:07:42,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/a7dbfa58b/d0a225eaab57483ca350600c24d247c8/FLAG6a30e5303 [2020-11-22 13:07:42,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/data/a7dbfa58b/d0a225eaab57483ca350600c24d247c8 [2020-11-22 13:07:42,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:42,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:42,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:42,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:42,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:42,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:42" (1/1) ... [2020-11-22 13:07:42,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ade599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:42, skipping insertion in model container [2020-11-22 13:07:42,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:42" (1/1) ... [2020-11-22 13:07:42,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:42,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:43,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:43,323 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:07:43,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:43,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:43,436 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:43,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:43,631 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:43,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43 WrapperNode [2020-11-22 13:07:43,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:43,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:43,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:43,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:43,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:43,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:43,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:43,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:43,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... [2020-11-22 13:07:43,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:43,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:43,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:43,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:43,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:07:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:07:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-22 13:07:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:44,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:44,209 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-22 13:07:44,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:44 BoogieIcfgContainer [2020-11-22 13:07:44,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:44,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:44,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:44,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:44,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:42" (1/3) ... [2020-11-22 13:07:44,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6647e60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:44, skipping insertion in model container [2020-11-22 13:07:44,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:43" (2/3) ... [2020-11-22 13:07:44,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6647e60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:44, skipping insertion in model container [2020-11-22 13:07:44,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:44" (3/3) ... [2020-11-22 13:07:44,221 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test5.i [2020-11-22 13:07:44,231 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:44,236 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-22 13:07:44,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:07:44,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:44,280 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:07:44,280 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:44,280 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:44,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:44,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:44,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:44,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-22 13:07:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:07:44,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:44,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:44,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:44,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965640, now seen corresponding path program 1 times [2020-11-22 13:07:44,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:44,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087155382] [2020-11-22 13:07:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:44,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:07:44,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:44,503 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 13:07:44,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:44,515 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 13:07:44,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087155382] [2020-11-22 13:07:44,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:44,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:07:44,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333930324] [2020-11-22 13:07:44,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:44,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:44,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:44,536 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-11-22 13:07:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:44,705 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-22 13:07:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:44,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-22 13:07:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:44,716 INFO L225 Difference]: With dead ends: 29 [2020-11-22 13:07:44,716 INFO L226 Difference]: Without dead ends: 25 [2020-11-22 13:07:44,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-22 13:07:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-11-22 13:07:44,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:07:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-22 13:07:44,750 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-11-22 13:07:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:44,751 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-22 13:07:44,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-22 13:07:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:07:44,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:44,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:44,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:07:44,971 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-11-22 13:07:44,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:44,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831346700] [2020-11-22 13:07:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:45,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:07:45,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:45,056 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 13:07:45,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:45,074 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 13:07:45,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831346700] [2020-11-22 13:07:45,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:45,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:07:45,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550007887] [2020-11-22 13:07:45,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:45,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:45,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:45,078 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-11-22 13:07:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:45,115 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-22 13:07:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:45,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-22 13:07:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:45,117 INFO L225 Difference]: With dead ends: 16 [2020-11-22 13:07:45,117 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:07:45,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:07:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:07:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:07:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-22 13:07:45,121 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-11-22 13:07:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:45,121 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-22 13:07:45,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-22 13:07:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:07:45,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:45,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:45,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:07:45,323 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:45,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812682, now seen corresponding path program 1 times [2020-11-22 13:07:45,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:45,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205340033] [2020-11-22 13:07:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:45,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:45,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:45,389 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 13:07:45,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:45,391 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 13:07:45,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205340033] [2020-11-22 13:07:45,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:45,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:07:45,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124287813] [2020-11-22 13:07:45,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:07:45,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:45,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:07:45,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:45,399 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2020-11-22 13:07:45,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:45,435 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-22 13:07:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:45,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-22 13:07:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:45,436 INFO L225 Difference]: With dead ends: 22 [2020-11-22 13:07:45,437 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:07:45,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:45,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:07:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2020-11-22 13:07:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-22 13:07:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-22 13:07:45,440 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-22 13:07:45,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:45,440 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-22 13:07:45,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:07:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-22 13:07:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:07:45,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:45,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:45,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:07:45,658 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:45,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:45,659 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2020-11-22 13:07:45,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:45,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314617603] [2020-11-22 13:07:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:45,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-22 13:07:45,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:45,784 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 13:07:45,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:46,002 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 13:07:46,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314617603] [2020-11-22 13:07:46,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:46,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2020-11-22 13:07:46,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026200430] [2020-11-22 13:07:46,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:07:46,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:07:46,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:07:46,004 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2020-11-22 13:07:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:46,229 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-22 13:07:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-22 13:07:46,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2020-11-22 13:07:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:46,230 INFO L225 Difference]: With dead ends: 21 [2020-11-22 13:07:46,231 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:07:46,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-11-22 13:07:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:07:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 12. [2020-11-22 13:07:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-22 13:07:46,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-22 13:07:46,235 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2020-11-22 13:07:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:46,235 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-22 13:07:46,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:07:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-22 13:07:46,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:07:46,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:46,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:46,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:07:46,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:46,443 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2020-11-22 13:07:46,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:46,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063272339] [2020-11-22 13:07:46,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:46,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:07:46,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:46,570 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 13:07:46,570 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:07:46,574 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:07:46,575 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:07:46,575 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-22 13:07:46,594 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 13:07:46,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:46,622 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 13:07:46,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063272339] [2020-11-22 13:07:46,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:46,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:07:46,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134676925] [2020-11-22 13:07:46,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:46,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:46,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:46,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:46,624 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-11-22 13:07:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:46,714 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-22 13:07:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:46,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 13:07:46,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:46,716 INFO L225 Difference]: With dead ends: 18 [2020-11-22 13:07:46,716 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 13:07:46,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 13:07:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-22 13:07:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-22 13:07:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-22 13:07:46,720 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-11-22 13:07:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:46,720 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-22 13:07:46,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-22 13:07:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:07:46,721 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:46,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:46,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:07:46,933 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:46,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1179952457, now seen corresponding path program 1 times [2020-11-22 13:07:46,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:46,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642055876] [2020-11-22 13:07:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 13:07:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:46,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-22 13:07:46,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:47,061 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 13:07:47,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:47,066 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 13:07:47,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642055876] [2020-11-22 13:07:47,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:47,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:07:47,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349310664] [2020-11-22 13:07:47,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:47,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:47,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:47,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:47,069 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-22 13:07:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:47,140 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-22 13:07:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:47,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 13:07:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:47,141 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:07:47,142 INFO L226 Difference]: Without dead ends: 11 [2020-11-22 13:07:47,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-22 13:07:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-22 13:07:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-22 13:07:47,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-11-22 13:07:47,144 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2020-11-22 13:07:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:47,144 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-11-22 13:07:47,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-11-22 13:07:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:47,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:47,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:47,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:07:47,358 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:07:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:47,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832814, now seen corresponding path program 1 times [2020-11-22 13:07:47,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:47,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996002572] [2020-11-22 13:07:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/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 [2020-11-22 13:07:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:47,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-22 13:07:47,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:47,469 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:07:47,470 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 13:07:47,470 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:07:47,502 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-22 13:07:47,506 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:07:47,508 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 13:07:47,509 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-11-22 13:07:47,509 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:07:47,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:07:49,910 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-22 13:07:49,912 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 13:07:49,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:56,070 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 13:07:56,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996002572] [2020-11-22 13:07:56,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:56,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2020-11-22 13:07:56,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952479669] [2020-11-22 13:07:56,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-22 13:07:56,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:56,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-22 13:07:56,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=115, Unknown=4, NotChecked=0, Total=156 [2020-11-22 13:07:56,074 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 13 states. [2020-11-22 13:07:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,402 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-22 13:07:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:07:58,403 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2020-11-22 13:07:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,403 INFO L225 Difference]: With dead ends: 10 [2020-11-22 13:07:58,403 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:07:58,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=64, Invalid=172, Unknown=4, NotChecked=0, Total=240 [2020-11-22 13:07:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:07:58,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:07:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:07:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:07:58,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-22 13:07:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,404 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:07:58,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-22 13:07:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:07:58,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:07:58,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:07:58,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:58 BoogieIcfgContainer [2020-11-22 13:07:58,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:58,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:58,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:58,609 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:58,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:44" (3/4) ... [2020-11-22 13:07:58,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:07:58,627 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-22 13:07:58,629 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:07:58,629 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:07:58,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b3c7aa9-0ca8-46eb-9958-59e4bbfe4049/bin/utaipan/witness.graphml [2020-11-22 13:07:58,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:58,691 INFO L168 Benchmark]: Toolchain (without parser) took 15934.20 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 48.5 MB in the beginning and 62.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,692 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.3 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:58,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.69 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 43.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.63 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,696 INFO L168 Benchmark]: Boogie Preprocessor took 23.17 ms. Allocated memory is still 73.4 MB. Free memory was 40.6 MB in the beginning and 39.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:58,697 INFO L168 Benchmark]: RCFGBuilder took 494.90 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 69.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,697 INFO L168 Benchmark]: TraceAbstraction took 14393.63 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 64.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,697 INFO L168 Benchmark]: Witness Printer took 80.74 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 62.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:58,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.3 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 873.69 ms. Allocated memory is still 73.4 MB. Free memory was 48.4 MB in the beginning and 43.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.63 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 40.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.17 ms. Allocated memory is still 73.4 MB. Free memory was 40.6 MB in the beginning and 39.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 494.90 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 39.3 MB in the beginning and 69.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14393.63 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 64.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 80.74 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 62.3 MB in the end (delta: 1.9 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: 770]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: 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, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 135 SDslu, 92 SDs, 0 SdLazy, 150 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 10 QuantifiedInterpolants, 4099 SizeOfPredicates, 45 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...