./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0 --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 b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:16:03,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:16:03,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:16:03,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:16:03,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:16:03,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:16:03,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:16:03,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:16:03,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:16:03,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:16:03,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:16:03,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:16:03,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:16:03,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:16:03,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:16:03,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:16:03,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:16:03,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:16:03,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:16:03,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:16:03,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:16:03,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:16:03,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:16:03,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:16:03,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:16:03,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:16:03,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:16:03,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:16:03,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:16:03,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:16:03,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:16:03,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:16:03,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:16:03,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:16:03,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:16:03,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:16:03,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:16:03,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:16:03,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:16:03,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:16:03,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:16:03,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 15:16:03,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:16:03,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:16:03,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:16:03,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:16:03,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:16:03,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:16:03,554 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:16:03,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:16:03,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:16:03,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:16:03,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:16:03,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:16:03,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:16:03,556 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:16:03,557 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:16:03,557 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:16:03,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:16:03,558 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:16:03,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:16:03,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:16:03,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:16:03,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:16:03,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:16:03,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:16:03,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:16:03,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:16:03,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:16:03,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:16:03,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:16:03,563 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_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2021-11-22 15:16:03,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:16:03,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:16:03,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:16:03,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:16:03,928 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:16:03,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2021-11-22 15:16:04,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/b2b247703/4b6b141af5fb442797c6469cae62020a/FLAGa5b7691c8 [2021-11-22 15:16:04,724 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:16:04,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2021-11-22 15:16:04,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/b2b247703/4b6b141af5fb442797c6469cae62020a/FLAGa5b7691c8 [2021-11-22 15:16:05,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/b2b247703/4b6b141af5fb442797c6469cae62020a [2021-11-22 15:16:05,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:16:05,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:16:05,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:05,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:16:05,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:16:05,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:05" (1/1) ... [2021-11-22 15:16:05,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a20d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:05, skipping insertion in model container [2021-11-22 15:16:05,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:05" (1/1) ... [2021-11-22 15:16:05,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:16:05,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:16:05,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:05,746 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) [2021-11-22 15:16:05,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50fad148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:05, skipping insertion in model container [2021-11-22 15:16:05,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:05,747 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-22 15:16:05,751 INFO L158 Benchmark]: Toolchain (without parser) took 739.86ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 114.2MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:16:05,753 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory was 116.9MB in the beginning and 116.9MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:16:05,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.89ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 115.1MB in the end (delta: -8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:16:05,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory was 116.9MB in the beginning and 116.9MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.89ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 115.1MB in the end (delta: -8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0 --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 b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:16:08,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:16:08,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:16:08,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:16:08,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:16:08,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:16:08,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:16:08,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:16:08,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:16:08,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:16:08,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:16:08,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:16:08,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:16:08,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:16:08,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:16:08,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:16:08,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:16:08,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:16:08,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:16:08,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:16:08,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:16:08,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:16:08,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:16:08,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:16:08,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:16:08,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:16:08,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:16:08,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:16:08,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:16:08,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:16:08,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:16:08,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:16:08,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:16:08,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:16:08,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:16:08,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:16:08,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:16:08,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:16:08,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:16:08,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:16:08,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:16:08,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-22 15:16:08,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:16:08,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:16:08,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:16:08,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:16:08,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:16:08,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:16:08,791 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:16:08,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:16:08,792 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:16:08,792 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:16:08,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:16:08,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:16:08,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:16:08,794 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:16:08,795 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:16:08,795 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:16:08,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:16:08,796 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:16:08,796 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:16:08,796 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:16:08,796 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:16:08,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:16:08,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:16:08,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:16:08,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:16:08,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:16:08,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:16:08,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:16:08,799 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:16:08,799 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:16:08,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:16:08,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:16:08,800 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2021-11-22 15:16:09,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:16:09,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:16:09,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:16:09,325 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:16:09,326 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:16:09,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2021-11-22 15:16:09,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/439c93a11/2500a9e6969747ec92a68ac6f8365f93/FLAGd3c95a4f7 [2021-11-22 15:16:10,097 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:16:10,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2021-11-22 15:16:10,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/439c93a11/2500a9e6969747ec92a68ac6f8365f93/FLAGd3c95a4f7 [2021-11-22 15:16:10,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/data/439c93a11/2500a9e6969747ec92a68ac6f8365f93 [2021-11-22 15:16:10,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:16:10,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:16:10,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:10,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:16:10,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:16:10,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:10" (1/1) ... [2021-11-22 15:16:10,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721ff07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:10, skipping insertion in model container [2021-11-22 15:16:10,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:10" (1/1) ... [2021-11-22 15:16:10,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:16:10,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:16:10,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:11,025 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 15:16:11,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:16:11,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:11,123 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:16:11,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:11,329 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:16:11,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11 WrapperNode [2021-11-22 15:16:11,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:11,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:16:11,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:16:11,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:16:11,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,433 INFO L137 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 29, calls inlined = 4, statements flattened = 32 [2021-11-22 15:16:11,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:16:11,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:16:11,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:16:11,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:16:11,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:16:11,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:16:11,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:16:11,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:16:11,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (1/1) ... [2021-11-22 15:16:11,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:16:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:11,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:16:11,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:16:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:16:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:16:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:16:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:16:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:16:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:16:11,801 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:16:11,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:16:11,991 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:16:11,999 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:16:12,000 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:16:12,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:12 BoogieIcfgContainer [2021-11-22 15:16:12,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:16:12,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:16:12,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:16:12,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:16:12,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:16:10" (1/3) ... [2021-11-22 15:16:12,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6300ad4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:12, skipping insertion in model container [2021-11-22 15:16:12,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:11" (2/3) ... [2021-11-22 15:16:12,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6300ad4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:12, skipping insertion in model container [2021-11-22 15:16:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:12" (3/3) ... [2021-11-22 15:16:12,013 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test1-2.i [2021-11-22 15:16:12,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:16:12,027 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-22 15:16:12,120 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:16:12,128 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:16:12,129 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-22 15:16:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 15:16:12,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:12,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 15:16:12,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2021-11-22 15:16:12,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:12,169 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2021-11-22 15:16:12,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:16:12,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061095094] [2021-11-22 15:16:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:12,187 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:16:12,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:16:12,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:16:12,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:16:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:12,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:16:12,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:12,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:12,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:12,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:16:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061095094] [2021-11-22 15:16:12,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061095094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:12,436 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:12,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:16:12,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82817699] [2021-11-22 15:16:12,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:12,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:16:12,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:16:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:16:12,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:16:12,500 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:12,555 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-11-22 15:16:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:16:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 15:16:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:12,569 INFO L225 Difference]: With dead ends: 19 [2021-11-22 15:16:12,569 INFO L226 Difference]: Without dead ends: 17 [2021-11-22 15:16:12,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:16:12,584 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:12,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:16:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-22 15:16:12,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-22 15:16:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-22 15:16:12,651 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2021-11-22 15:16:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:12,653 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-22 15:16:12,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-22 15:16:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 15:16:12,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:12,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 15:16:12,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 15:16:12,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:16:12,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2021-11-22 15:16:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:12,875 INFO L85 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2021-11-22 15:16:12,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:16:12,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012437480] [2021-11-22 15:16:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:12,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:16:12,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:16:12,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:16:12,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:16:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:12,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:16:12,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:13,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:13,192 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:16:13,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012437480] [2021-11-22 15:16:13,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012437480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:13,193 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:13,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-22 15:16:13,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384365461] [2021-11-22 15:16:13,194 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:13,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:16:13,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:16:13,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:16:13,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:16:13,199 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:13,406 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-11-22 15:16:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 15:16:13,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 15:16:13,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:13,410 INFO L225 Difference]: With dead ends: 27 [2021-11-22 15:16:13,410 INFO L226 Difference]: Without dead ends: 27 [2021-11-22 15:16:13,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:16:13,412 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 61 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:13,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 16 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:16:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-22 15:16:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-11-22 15:16:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-22 15:16:13,425 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2021-11-22 15:16:13,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:13,431 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-22 15:16:13,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-22 15:16:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:16:13,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:13,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:13,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:13,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:16:13,648 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2021-11-22 15:16:13,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:13,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965349, now seen corresponding path program 1 times [2021-11-22 15:16:13,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:16:13,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313701386] [2021-11-22 15:16:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:13,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:16:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:16:13,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:16:13,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 15:16:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:13,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:16:13,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:13,804 INFO L388 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 [2021-11-22 15:16:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:13,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:13,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:16:13,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313701386] [2021-11-22 15:16:13,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313701386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:13,874 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:13,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:16:13,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819299947] [2021-11-22 15:16:13,875 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:13,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:16:13,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:16:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:16:13,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:16:13,877 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:13,931 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-11-22 15:16:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:16:13,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 15:16:13,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:13,933 INFO L225 Difference]: With dead ends: 19 [2021-11-22 15:16:13,933 INFO L226 Difference]: Without dead ends: 19 [2021-11-22 15:16:13,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:16:13,944 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:13,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:16:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-22 15:16:13,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-22 15:16:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-22 15:16:13,950 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 7 [2021-11-22 15:16:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:13,950 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-22 15:16:13,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-22 15:16:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:16:13,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:13,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:13,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:14,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:16:14,153 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2021-11-22 15:16:14,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812391, now seen corresponding path program 1 times [2021-11-22 15:16:14,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:16:14,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940611058] [2021-11-22 15:16:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:14,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:16:14,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:16:14,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:16:14,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 15:16:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:14,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:16:14,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:14,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:14,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:16:14,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940611058] [2021-11-22 15:16:14,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940611058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:14,263 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:14,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:16:14,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149617177] [2021-11-22 15:16:14,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:14,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:16:14,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:16:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:16:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:16:14,266 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:16:14,313 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-11-22 15:16:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:16:14,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 15:16:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:16:14,317 INFO L225 Difference]: With dead ends: 24 [2021-11-22 15:16:14,317 INFO L226 Difference]: Without dead ends: 24 [2021-11-22 15:16:14,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:16:14,320 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:16:14,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:16:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-22 15:16:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-11-22 15:16:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-22 15:16:14,336 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 7 [2021-11-22 15:16:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:16:14,337 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-22 15:16:14,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-22 15:16:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 15:16:14,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:16:14,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:14,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-22 15:16:14,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:16:14,553 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2021-11-22 15:16:14,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:14,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1267787124, now seen corresponding path program 1 times [2021-11-22 15:16:14,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:16:14,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044484613] [2021-11-22 15:16:14,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:14,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:16:14,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:16:14,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:16:14,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 15:16:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:16:14,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:16:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:16:14,680 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 15:16:14,680 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:16:14,682 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (6 of 7 remaining) [2021-11-22 15:16:14,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (5 of 7 remaining) [2021-11-22 15:16:14,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (4 of 7 remaining) [2021-11-22 15:16:14,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (3 of 7 remaining) [2021-11-22 15:16:14,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (2 of 7 remaining) [2021-11-22 15:16:14,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (1 of 7 remaining) [2021-11-22 15:16:14,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2021-11-22 15:16:14,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:14,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:16:14,895 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-22 15:16:14,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:16:14,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:16:14 BoogieIcfgContainer [2021-11-22 15:16:14,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:16:14,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:16:14,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:16:14,933 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:16:14,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:12" (3/4) ... [2021-11-22 15:16:14,936 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:16:14,995 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:16:14,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:16:14,996 INFO L158 Benchmark]: Toolchain (without parser) took 4666.78ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 54.4MB in the beginning and 75.3MB in the end (delta: -20.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-22 15:16:14,997 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:16:14,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.46ms. Allocated memory is still 90.2MB. Free memory was 54.2MB in the beginning and 57.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-22 15:16:14,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.16ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:16:14,998 INFO L158 Benchmark]: Boogie Preprocessor took 59.78ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 53.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:16:14,999 INFO L158 Benchmark]: RCFGBuilder took 506.60ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 43.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:16:14,999 INFO L158 Benchmark]: TraceAbstraction took 2926.29ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 43.1MB in the beginning and 76.8MB in the end (delta: -33.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:16:15,000 INFO L158 Benchmark]: Witness Printer took 62.94ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:16:15,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1000.46ms. Allocated memory is still 90.2MB. Free memory was 54.2MB in the beginning and 57.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.16ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.78ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 53.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.60ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 43.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2926.29ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 43.1MB in the beginning and 76.8MB in the end (delta: -33.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.94ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 760]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L763] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L759] free(p) [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 53 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 4 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-22 15:16:15,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d1580af-ffb7-4d25-a300-ecb25eeb1733/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)