./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.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_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf7af2f20e563d03f4a81a8dac054ded849cb34c .................................................................................................................................. 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_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf7af2f20e563d03f4a81a8dac054ded849cb34c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:39:54,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:54,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:54,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:54,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:54,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:54,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:54,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:54,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:54,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:54,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:54,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:54,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:54,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:54,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:54,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:54,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:54,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:54,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:54,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:54,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:54,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:54,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:54,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:54,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:54,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:54,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:54,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:54,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:54,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:54,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:54,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:54,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:54,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:54,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:54,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:54,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:54,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:54,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:54,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:54,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:54,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 23:39:54,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:54,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:54,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:54,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:54,587 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:54,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:54,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:54,588 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:39:54,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:39:54,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:54,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:54,591 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:39:54,591 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:39:54,591 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 23:39:54,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:39:54,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 23:39:54,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:54,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:54,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:54,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:54,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:39:54,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:39:54,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:54,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:54,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:39:54,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:39:54,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:39:54,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:54,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2020-11-29 23:39:54,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:39:54,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:39:54,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:39:54,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:39:54,999 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:39:55,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2020-11-29 23:39:55,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/defc2429f/d35fa7cab1004c32859f0ab429e11a9e/FLAGd3d623d3e [2020-11-29 23:39:55,923 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:39:55,924 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2020-11-29 23:39:55,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/defc2429f/d35fa7cab1004c32859f0ab429e11a9e/FLAGd3d623d3e [2020-11-29 23:39:55,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/defc2429f/d35fa7cab1004c32859f0ab429e11a9e [2020-11-29 23:39:55,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:39:55,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 23:39:55,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:55,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:39:56,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:39:56,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:55" (1/1) ... [2020-11-29 23:39:56,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0cfc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:56, skipping insertion in model container [2020-11-29 23:39:56,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:55" (1/1) ... [2020-11-29 23:39:56,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:39:56,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:39:56,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:56,452 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) [2020-11-29 23:39:56,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@744fa6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:56, skipping insertion in model container [2020-11-29 23:39:56,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:56,454 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 23:39:56,456 INFO L168 Benchmark]: Toolchain (without parser) took 475.88 ms. Allocated memory is still 86.0 MB. Free memory was 47.6 MB in the beginning and 62.4 MB in the end (delta: -14.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:39:56,457 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 86.0 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:39:56,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.67 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 62.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:56,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 86.0 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 454.67 ms. Allocated memory is still 86.0 MB. Free memory was 66.2 MB in the beginning and 62.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: 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 [2020-11-29 23:39:59,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:59,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:59,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:59,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:59,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:59,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:59,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:59,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:59,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:59,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:59,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:59,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:59,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:59,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:59,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:59,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:59,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:59,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:59,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:59,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:59,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:59,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:59,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:59,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:59,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:59,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:59,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:59,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:59,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:59,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:59,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:59,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:59,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:59,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:59,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:59,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:59,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:59,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:59,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:59,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:59,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 23:39:59,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:59,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:59,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:59,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:59,546 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:59,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:59,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:59,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:39:59,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:39:59,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:59,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:59,549 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:39:59,549 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:39:59,549 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 23:39:59,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:39:59,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 23:39:59,550 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:39:59,550 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:39:59,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:59,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:59,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:59,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:59,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:39:59,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:39:59,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:59,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:59,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:39:59,553 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:39:59,553 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:39:59,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:59,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:39:59,554 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_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2020-11-29 23:40:00,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:40:00,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:40:00,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:40:00,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:40:00,073 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:40:00,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2020-11-29 23:40:00,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/e1c1d7b58/5415fef3e51447efae2a3eab6fd6d84e/FLAGb26578e48 [2020-11-29 23:40:00,836 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:40:00,836 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2020-11-29 23:40:00,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/e1c1d7b58/5415fef3e51447efae2a3eab6fd6d84e/FLAGb26578e48 [2020-11-29 23:40:01,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/data/e1c1d7b58/5415fef3e51447efae2a3eab6fd6d84e [2020-11-29 23:40:01,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:40:01,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 23:40:01,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:40:01,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:40:01,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:40:01,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:01,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538db2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01, skipping insertion in model container [2020-11-29 23:40:01,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:01,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:40:01,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:40:01,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:01,681 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 23:40:01,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:40:01,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:01,775 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:40:01,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:01,952 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:40:01,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01 WrapperNode [2020-11-29 23:40:01,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:40:01,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:40:01,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:40:01,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:40:01,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:01,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:01,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:01,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:02,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:02,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:02,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... [2020-11-29 23:40:02,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:40:02,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:40:02,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:40:02,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:40:02,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:40:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 23:40:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:40:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 23:40:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 23:40:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 23:40:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-29 23:40:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2020-11-29 23:40:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 23:40:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 23:40:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 23:40:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 23:40:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 23:40:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 23:40:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 23:40:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 23:40:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 23:40:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 23:40:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 23:40:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 23:40:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 23:40:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 23:40:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 23:40:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 23:40:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 23:40:02,135 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 23:40:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 23:40:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 23:40:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 23:40:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 23:40:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 23:40:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 23:40:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 23:40:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 23:40:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 23:40:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 23:40:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 23:40:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 23:40:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 23:40:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 23:40:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 23:40:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 23:40:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 23:40:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 23:40:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 23:40:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 23:40:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 23:40:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 23:40:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 23:40:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 23:40:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 23:40:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 23:40:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 23:40:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 23:40:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 23:40:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 23:40:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 23:40:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 23:40:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 23:40:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 23:40:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 23:40:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 23:40:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 23:40:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 23:40:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 23:40:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-29 23:40:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 23:40:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 23:40:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 23:40:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 23:40:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 23:40:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 23:40:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 23:40:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 23:40:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 23:40:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 23:40:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 23:40:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 23:40:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 23:40:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 23:40:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 23:40:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 23:40:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 23:40:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 23:40:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 23:40:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 23:40:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 23:40:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 23:40:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 23:40:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 23:40:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 23:40:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 23:40:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 23:40:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 23:40:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 23:40:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 23:40:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 23:40:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 23:40:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 23:40:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 23:40:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 23:40:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 23:40:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 23:40:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 23:40:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 23:40:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 23:40:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 23:40:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 23:40:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 23:40:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 23:40:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 23:40:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 23:40:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 23:40:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 23:40:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-29 23:40:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2020-11-29 23:40:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:40:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 23:40:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 23:40:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 23:40:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:40:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 23:40:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:40:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 23:40:03,125 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-29 23:40:03,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:40:03,358 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 23:40:03,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03 BoogieIcfgContainer [2020-11-29 23:40:03,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:40:03,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:40:03,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:40:03,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:40:03,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:40:01" (1/3) ... [2020-11-29 23:40:03,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de7f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:03, skipping insertion in model container [2020-11-29 23:40:03,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:01" (2/3) ... [2020-11-29 23:40:03,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de7f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:03, skipping insertion in model container [2020-11-29 23:40:03,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03" (3/3) ... [2020-11-29 23:40:03,375 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2020-11-29 23:40:03,394 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:40:03,404 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-29 23:40:03,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-29 23:40:03,442 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:40:03,442 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 23:40:03,442 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:40:03,442 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:40:03,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:40:03,442 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:40:03,443 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:40:03,443 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:40:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-29 23:40:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:40:03,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:03,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:03,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:40:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1580649199, now seen corresponding path program 1 times [2020-11-29 23:40:03,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:40:03,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459390293] [2020-11-29 23:40:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:40:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:03,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 23:40:03,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:40:03,849 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 [2020-11-29 23:40:03,849 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:40:03,862 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:40:03,862 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:40:03,862 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 23:40:04,092 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:40:04,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-29 23:40:04,098 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:40:04,100 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:40:04,116 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:40:04,152 INFO L625 ElimStorePlain]: treesize reduction 16, result has 51.5 percent of original size [2020-11-29 23:40:04,155 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. [2020-11-29 23:40:04,162 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2020-11-29 23:40:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:04,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:40:09,545 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-11-29 23:40:28,791 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-11-29 23:40:35,120 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 23:40:41,309 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 23:40:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:41,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459390293] [2020-11-29 23:40:41,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:40:41,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-11-29 23:40:41,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197468573] [2020-11-29 23:40:41,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 23:40:41,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:40:41,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 23:40:41,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=162, Unknown=11, NotChecked=0, Total=210 [2020-11-29 23:40:41,381 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 15 states. [2020-11-29 23:41:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:41:07,317 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-11-29 23:41:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:41:07,319 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-11-29 23:41:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:41:07,326 INFO L225 Difference]: With dead ends: 37 [2020-11-29 23:41:07,326 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 23:41:07,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=75, Invalid=294, Unknown=11, NotChecked=0, Total=380 [2020-11-29 23:41:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 23:41:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-29 23:41:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 23:41:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-11-29 23:41:07,371 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 19 [2020-11-29 23:41:07,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:41:07,373 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-11-29 23:41:07,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 23:41:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-11-29 23:41:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:41:07,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:41:07,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:41:07,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:41:07,596 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:41:07,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:41:07,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1580649198, now seen corresponding path program 1 times [2020-11-29 23:41:07,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:41:07,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071960030] [2020-11-29 23:41:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:41:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:41:07,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 23:41:07,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:41:07,850 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 [2020-11-29 23:41:07,851 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:41:07,870 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:41:07,883 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 [2020-11-29 23:41:07,883 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:41:07,897 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:41:07,897 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:41:07,898 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 23:41:08,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 23:41:08,146 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-29 23:41:08,148 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:41:08,169 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:41:08,188 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:41:08,189 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-29 23:41:08,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:41:08,196 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:41:08,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:41:08,215 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 23:41:08,216 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2020-11-29 23:41:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:41:08,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:41:08,477 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:12,914 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 23:41:12,929 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:12,932 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:12,933 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:12,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:12,948 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:24,712 WARN L193 SmtUtils]: Spent 9.04 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-29 23:41:24,793 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:41:42,784 WARN L193 SmtUtils]: Spent 14.13 s on a formula simplification that was a NOOP. DAG size: 36 [2020-11-29 23:41:44,825 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alloc_node_#t~malloc2.base_12| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_alloc_node_#t~malloc2.base_12|))) (bvule (bvadd |c_main_#t~ret3.offset| (_ bv4 32)) (select (store |c_#length| |v_alloc_node_#t~malloc2.base_12| (_ bv4 32)) |c_main_#t~ret3.base|)))) (or (forall ((v_prenex_2 (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| v_prenex_2)))) (bvule |c_main_#t~ret3.offset| (bvadd |c_main_#t~ret3.offset| (_ bv4 32))))) is different from false [2020-11-29 23:41:48,066 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 23:41:49,785 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 23:41:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:41:49,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071960030] [2020-11-29 23:41:49,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:41:49,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-11-29 23:41:49,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792210139] [2020-11-29 23:41:49,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 23:41:49,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:41:49,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 23:41:49,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=5, NotChecked=26, Total=240 [2020-11-29 23:41:49,857 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 16 states. [2020-11-29 23:42:25,042 WARN L193 SmtUtils]: Spent 18.62 s on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-11-29 23:42:50,960 WARN L193 SmtUtils]: Spent 24.72 s on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-11-29 23:43:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:43:05,036 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-11-29 23:43:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:43:05,037 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-11-29 23:43:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:43:05,038 INFO L225 Difference]: With dead ends: 27 [2020-11-29 23:43:05,038 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 23:43:05,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 87.7s TimeCoverageRelationStatistics Valid=72, Invalid=306, Unknown=6, NotChecked=36, Total=420 [2020-11-29 23:43:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 23:43:05,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 23:43:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 23:43:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-11-29 23:43:05,045 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 19 [2020-11-29 23:43:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:43:05,046 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-11-29 23:43:05,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 23:43:05,046 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-11-29 23:43:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:43:05,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:43:05,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:43:05,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:43:05,248 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:43:05,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:43:05,249 INFO L82 PathProgramCache]: Analyzing trace with hash 901162851, now seen corresponding path program 1 times [2020-11-29 23:43:05,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:43:05,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004420263] [2020-11-29 23:43:05,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:43:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:43:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:43:05,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:43:05,467 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 [2020-11-29 23:43:05,467 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:05,470 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,471 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 23:43:05,534 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 23:43:05,534 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:05,549 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,549 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2020-11-29 23:43:05,574 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-11-29 23:43:05,575 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,580 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:05,580 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:05,580 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2020-11-29 23:43:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:43:05,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:43:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:43:05,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004420263] [2020-11-29 23:43:05,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:43:05,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-11-29 23:43:05,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562124325] [2020-11-29 23:43:05,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:43:05,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:43:05,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:43:05,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:43:05,706 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2020-11-29 23:43:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:43:05,956 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-11-29 23:43:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:43:05,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-11-29 23:43:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:43:05,958 INFO L225 Difference]: With dead ends: 26 [2020-11-29 23:43:05,958 INFO L226 Difference]: Without dead ends: 26 [2020-11-29 23:43:05,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:43:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-29 23:43:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-29 23:43:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 23:43:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-11-29 23:43:05,964 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2020-11-29 23:43:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:43:05,964 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-11-29 23:43:05,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:43:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-11-29 23:43:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:43:05,965 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:43:05,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:43:06,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:43:06,174 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:43:06,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:43:06,174 INFO L82 PathProgramCache]: Analyzing trace with hash 901162852, now seen corresponding path program 1 times [2020-11-29 23:43:06,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:43:06,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079782273] [2020-11-29 23:43:06,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:43:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:43:06,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 23:43:06,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:43:06,409 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 [2020-11-29 23:43:06,409 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:06,419 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,419 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-29 23:43:06,485 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 23:43:06,485 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,505 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:06,525 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 23:43:06,525 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:06,545 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,545 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-11-29 23:43:06,592 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 23:43:06,596 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,632 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:06,642 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-11-29 23:43:06,643 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,650 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:43:06,651 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:43:06,651 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2020-11-29 23:43:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:43:06,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:43:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:43:07,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079782273] [2020-11-29 23:43:07,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:43:07,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-29 23:43:07,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816000808] [2020-11-29 23:43:07,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:43:07,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:43:07,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:43:07,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:43:07,269 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 12 states. [2020-11-29 23:43:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:43:07,655 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 23:43:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:43:07,656 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-11-29 23:43:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:43:07,657 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:43:07,657 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 23:43:07,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-11-29 23:43:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 23:43:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 23:43:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 23:43:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-11-29 23:43:07,664 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2020-11-29 23:43:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:43:07,664 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-11-29 23:43:07,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:43:07,664 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-11-29 23:43:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:43:07,665 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:43:07,665 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:43:07,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 23:43:07,866 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:43:07,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:43:07,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1584820282, now seen corresponding path program 1 times [2020-11-29 23:43:07,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:43:07,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354021202] [2020-11-29 23:43:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:43:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:43:08,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:43:08,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:43:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:43:08,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:43:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:43:08,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354021202] [2020-11-29 23:43:08,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:43:08,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2020-11-29 23:43:08,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696233107] [2020-11-29 23:43:08,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:43:08,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:43:08,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:43:08,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:43:08,462 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 12 states. [2020-11-29 23:43:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:43:08,713 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 23:43:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:43:08,713 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-11-29 23:43:08,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:43:08,715 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:43:08,715 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 23:43:08,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:43:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 23:43:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-11-29 23:43:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 23:43:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-11-29 23:43:08,720 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 26 [2020-11-29 23:43:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:43:08,720 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-11-29 23:43:08,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:43:08,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-11-29 23:43:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 23:43:08,721 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:43:08,722 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:43:08,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 23:43:08,925 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 23:43:08,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:43:08,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1701102057, now seen corresponding path program 1 times [2020-11-29 23:43:08,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:43:08,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460419181] [2020-11-29 23:43:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4136e0c-d7da-4b61-9a6e-8503553bc1fd/bin/uautomizer/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 [2020-11-29 23:43:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:43:09,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:43:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:43:09,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:43:09,221 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 23:43:09,221 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:43:09,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 23:43:09,435 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-29 23:43:09,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:43:09 BoogieIcfgContainer [2020-11-29 23:43:09,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:43:09,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:43:09,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:43:09,461 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:43:09,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03" (3/4) ... [2020-11-29 23:43:09,467 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:43:09,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:43:09,474 INFO L168 Benchmark]: Toolchain (without parser) took 188352.17 ms. Allocated memory was 54.5 MB in the beginning and 96.5 MB in the end (delta: 41.9 MB). Free memory was 31.7 MB in the beginning and 35.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:43:09,475 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:43:09,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 832.38 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.5 MB in the beginning and 48.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:43:09,481 INFO L168 Benchmark]: Boogie Preprocessor took 69.92 ms. Allocated memory is still 75.5 MB. Free memory was 48.5 MB in the beginning and 45.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:43:09,481 INFO L168 Benchmark]: RCFGBuilder took 1339.06 ms. Allocated memory is still 75.5 MB. Free memory was 45.8 MB in the beginning and 51.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:43:09,484 INFO L168 Benchmark]: TraceAbstraction took 186090.55 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 35.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:43:09,484 INFO L168 Benchmark]: Witness Printer took 9.94 ms. Allocated memory is still 96.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:43:09,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 832.38 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 31.5 MB in the beginning and 48.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.92 ms. Allocated memory is still 75.5 MB. Free memory was 48.5 MB in the beginning and 45.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1339.06 ms. Allocated memory is still 75.5 MB. Free memory was 45.8 MB in the beginning and 51.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 186090.55 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 35.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. * Witness Printer took 9.94 ms. Allocated memory is still 96.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 568]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 568. Possible FailurePath: [L569] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L566] return temp; VAL [\result={1:0}, malloc(sizeof(struct node))={1:0}, temp={1:0}] [L569] RET, EXPR alloc_node() VAL [alloc_node()={1:0}] [L569] struct node* s = alloc_node(); [L570] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={2:0}, temp={2:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={2:0}, temp={2:0}] [L566] return temp; VAL [\result={2:0}, malloc(sizeof(struct node))={2:0}, temp={2:0}] [L570] RET, EXPR alloc_node() VAL [alloc_node()={2:0}, s={1:0}] [L570] s->next = alloc_node() VAL [alloc_node()={2:0}, s={1:0}] [L571] EXPR s->next VAL [s={1:0}, s->next={2:0}] [L571] *s = *(s->next) [L572] free(s) VAL [s={1:0}] [L572] free(s) VAL [s={1:0}] [L572] free(s) [L573] return 0; VAL [\result=0, s={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 54 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 185.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 102.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 130 SDslu, 330 SDs, 0 SdLazy, 589 SolverSat, 48 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 54.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 126.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 81.1s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 206 ConstructedInterpolants, 37 QuantifiedInterpolants, 31300 SizeOfPredicates, 35 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 26/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...