./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0019_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d3944dc6902922a2302202138237203b8cd3e5 .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d3944dc6902922a2302202138237203b8cd3e5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:17:20,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:17:20,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:17:20,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:17:20,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:17:20,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:17:20,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:17:20,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:17:20,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:17:20,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:17:20,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:17:20,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:17:20,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:17:20,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:17:20,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:17:20,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:17:20,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:17:20,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:17:20,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:17:20,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:17:20,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:17:20,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:17:20,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:17:20,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:17:20,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:17:20,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:17:20,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:17:20,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:17:20,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:17:20,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:17:20,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:17:20,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:17:20,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:17:20,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:17:20,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:17:20,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:17:20,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:17:20,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:17:20,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:17:20,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:17:20,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:17:20,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 18:17:20,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:17:20,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:17:20,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:17:20,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:17:20,753 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:17:20,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:17:20,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:17:20,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:17:20,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:17:20,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:17:20,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:17:20,756 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:17:20,756 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:17:20,756 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:17:20,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:17:20,757 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:17:20,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:17:20,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:17:20,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:17:20,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:17:20,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:17:20,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:17:20,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:17:20,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:17:20,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:17:20,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:17:20,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:17:20,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:17:20,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d3944dc6902922a2302202138237203b8cd3e5 [2020-11-29 18:17:21,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:17:21,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:17:21,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:17:21,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:17:21,117 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:17:21,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-2.i [2020-11-29 18:17:21,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/ce9125277/3e0408e39f87418b9f59212e1b43627b/FLAG96893f43b [2020-11-29 18:17:21,914 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:17:21,917 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/sv-benchmarks/c/list-ext-properties/test-0019_1-2.i [2020-11-29 18:17:21,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/ce9125277/3e0408e39f87418b9f59212e1b43627b/FLAG96893f43b [2020-11-29 18:17:22,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/ce9125277/3e0408e39f87418b9f59212e1b43627b [2020-11-29 18:17:22,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:17:22,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:17:22,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:22,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:17:22,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:17:22,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:22" (1/1) ... [2020-11-29 18:17:22,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232cc5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:22, skipping insertion in model container [2020-11-29 18:17:22,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:22" (1/1) ... [2020-11-29 18:17:22,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:17:22,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:17:22,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:22,655 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-29 18:17:22,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e9282f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:22, skipping insertion in model container [2020-11-29 18:17:22,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:22,656 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 18:17:22,659 INFO L168 Benchmark]: Toolchain (without parser) took 485.69 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 70.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:22,660 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:17:22,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.71 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 70.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:17:22,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 481.71 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 70.6 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 529]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:17:25,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:17:25,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:17:25,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:17:25,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:17:25,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:17:25,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:17:25,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:17:25,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:17:25,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:17:25,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:17:25,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:17:25,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:17:25,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:17:25,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:17:25,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:17:25,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:17:25,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:17:25,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:17:25,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:17:25,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:17:25,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:17:25,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:17:25,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:17:25,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:17:25,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:17:25,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:17:25,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:17:25,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:17:25,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:17:25,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:17:25,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:17:25,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:17:25,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:17:25,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:17:25,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:17:25,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:17:25,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:17:25,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:17:25,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:17:25,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:17:25,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 18:17:25,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:17:25,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:17:25,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:17:25,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:17:25,723 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:17:25,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:17:25,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:17:25,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:17:25,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:17:25,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:17:25,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:17:25,725 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:17:25,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:17:25,725 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:17:25,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:17:25,726 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:17:25,726 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:17:25,726 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:17:25,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:17:25,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:17:25,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:17:25,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:17:25,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:17:25,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:17:25,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:17:25,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:17:25,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:17:25,729 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:17:25,740 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:17:25,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:17:25,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:17:25,740 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d3944dc6902922a2302202138237203b8cd3e5 [2020-11-29 18:17:26,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:17:26,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:17:26,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:17:26,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:17:26,189 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:17:26,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-2.i [2020-11-29 18:17:26,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/7ecf42d2a/093dfd88e0ec449f9c54bb15a92578bb/FLAG5cb6e8413 [2020-11-29 18:17:27,050 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:17:27,051 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/sv-benchmarks/c/list-ext-properties/test-0019_1-2.i [2020-11-29 18:17:27,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/7ecf42d2a/093dfd88e0ec449f9c54bb15a92578bb/FLAG5cb6e8413 [2020-11-29 18:17:27,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/data/7ecf42d2a/093dfd88e0ec449f9c54bb15a92578bb [2020-11-29 18:17:27,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:17:27,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:17:27,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:27,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:17:27,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:17:27,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:27" (1/1) ... [2020-11-29 18:17:27,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd70b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:27, skipping insertion in model container [2020-11-29 18:17:27,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:27" (1/1) ... [2020-11-29 18:17:27,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:17:27,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:17:27,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:27,862 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 18:17:27,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:17:27,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:27,953 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:17:28,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:28,122 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:17:28,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28 WrapperNode [2020-11-29 18:17:28,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:28,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:17:28,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:17:28,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:17:28,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... [2020-11-29 18:17:28,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:17:28,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:17:28,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:17:28,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:17:28,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:17:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 18:17:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:17:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:17:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 18:17:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2020-11-29 18:17:28,319 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2020-11-29 18:17:28,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 18:17:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 18:17:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 18:17:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 18:17:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 18:17:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 18:17:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 18:17:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 18:17:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 18:17:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 18:17:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 18:17:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 18:17:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 18:17:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 18:17:28,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 18:17:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 18:17:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 18:17:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 18:17:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2020-11-29 18:17:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:17:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 18:17:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 18:17:28,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:17:28,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:17:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:17:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-29 18:17:28,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-29 18:17:29,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:17:29,494 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 18:17:29,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:29 BoogieIcfgContainer [2020-11-29 18:17:29,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:17:29,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:17:29,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:17:29,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:17:29,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:17:27" (1/3) ... [2020-11-29 18:17:29,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3c938c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:17:29, skipping insertion in model container [2020-11-29 18:17:29,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:28" (2/3) ... [2020-11-29 18:17:29,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3c938c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:17:29, skipping insertion in model container [2020-11-29 18:17:29,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:29" (3/3) ... [2020-11-29 18:17:29,513 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0019_1-2.i [2020-11-29 18:17:29,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:17:29,533 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-29 18:17:29,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-29 18:17:29,586 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:17:29,586 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 18:17:29,587 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:17:29,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:17:29,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:17:29,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:17:29,588 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:17:29,588 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:17:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-29 18:17:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:17:29,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:29,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:29,628 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:17:29,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:29,637 INFO L82 PathProgramCache]: Analyzing trace with hash -378473202, now seen corresponding path program 1 times [2020-11-29 18:17:29,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:17:29,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485995428] [2020-11-29 18:17:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 18:17:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:29,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:17:29,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:17:30,030 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:30,031 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:30,045 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:30,045 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:30,046 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 18:17:30,122 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:30,123 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-29 18:17:30,124 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:30,157 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-29 18:17:30,158 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:30,159 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-11-29 18:17:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:30,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:17:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:30,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485995428] [2020-11-29 18:17:30,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:30,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 18:17:30,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165660684] [2020-11-29 18:17:30,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:17:30,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:17:30,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:17:30,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:17:30,274 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2020-11-29 18:17:30,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:30,756 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2020-11-29 18:17:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:17:30,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-29 18:17:30,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:17:30,771 INFO L225 Difference]: With dead ends: 74 [2020-11-29 18:17:30,771 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 18:17:30,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:17:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 18:17:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 18:17:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:17:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2020-11-29 18:17:30,835 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 9 [2020-11-29 18:17:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:17:30,836 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2020-11-29 18:17:30,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:17:30,837 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2020-11-29 18:17:30,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:17:30,838 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:30,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:31,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:17:31,055 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:17:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:31,056 INFO L82 PathProgramCache]: Analyzing trace with hash -378473201, now seen corresponding path program 1 times [2020-11-29 18:17:31,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:17:31,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421300541] [2020-11-29 18:17:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 18:17:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:31,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 18:17:31,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:17:31,311 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:31,311 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:31,324 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:31,331 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:31,332 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:31,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:31,343 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:31,344 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 18:17:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:31,414 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-29 18:17:31,415 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:31,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:31,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:31,448 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:17:31,453 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:31,466 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:31,468 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:31,468 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-11-29 18:17:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:31,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:17:31,594 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:17:32,481 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 18:17:32,894 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 18:17:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:32,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421300541] [2020-11-29 18:17:32,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:32,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-29 18:17:32,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247139866] [2020-11-29 18:17:32,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 18:17:32,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:17:32,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:17:32,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:17:32,925 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 8 states. [2020-11-29 18:17:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:34,620 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-11-29 18:17:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:17:34,621 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-29 18:17:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:17:34,623 INFO L225 Difference]: With dead ends: 67 [2020-11-29 18:17:34,623 INFO L226 Difference]: Without dead ends: 67 [2020-11-29 18:17:34,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:17:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-29 18:17:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-29 18:17:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-29 18:17:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2020-11-29 18:17:34,634 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 9 [2020-11-29 18:17:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:17:34,635 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2020-11-29 18:17:34,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 18:17:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2020-11-29 18:17:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:17:34,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:34,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:34,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:17:34,851 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:17:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:34,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1359473840, now seen corresponding path program 1 times [2020-11-29 18:17:34,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:17:34,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106831589] [2020-11-29 18:17:34,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 18:17:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:35,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-29 18:17:35,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:17:35,150 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:35,150 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,174 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,182 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:35,182 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,198 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,198 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 18:17:35,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:35,303 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-29 18:17:35,304 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:35,361 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:17:35,364 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,376 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,377 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:35,377 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-11-29 18:17:35,477 INFO L441 ElimStorePlain]: Different costs {1=[|v_#valid_78|], 3=[|v_#length_62|]} [2020-11-29 18:17:35,495 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,496 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-29 18:17:35,498 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,521 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,559 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:35,560 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 46 [2020-11-29 18:17:35,561 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:35,607 INFO L625 ElimStorePlain]: treesize reduction 28, result has 42.9 percent of original size [2020-11-29 18:17:35,609 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:35,609 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:21 [2020-11-29 18:17:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:35,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:17:35,705 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:17:39,347 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 18:17:39,351 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:17:39,513 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:39,513 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-29 18:17:39,514 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:39,534 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:39,534 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-29 18:17:39,535 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:39,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:39,590 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-11-29 18:17:39,590 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2020-11-29 18:17:39,670 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:17:42,686 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 18:17:46,322 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-29 18:17:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:46,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106831589] [2020-11-29 18:17:46,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:46,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-29 18:17:46,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443493611] [2020-11-29 18:17:46,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:17:46,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:17:46,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:17:46,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2020-11-29 18:17:46,344 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 10 states. [2020-11-29 18:17:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:47,624 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-11-29 18:17:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:17:47,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-29 18:17:47,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:17:47,627 INFO L225 Difference]: With dead ends: 65 [2020-11-29 18:17:47,627 INFO L226 Difference]: Without dead ends: 65 [2020-11-29 18:17:47,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2020-11-29 18:17:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-29 18:17:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-29 18:17:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 18:17:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-11-29 18:17:47,636 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 11 [2020-11-29 18:17:47,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:17:47,636 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-11-29 18:17:47,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:17:47,636 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-11-29 18:17:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:17:47,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:47,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:47,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:17:47,838 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:17:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash 784302227, now seen corresponding path program 1 times [2020-11-29 18:17:47,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:17:47,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037228215] [2020-11-29 18:17:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 18:17:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:48,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 18:17:48,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:17:48,096 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:48,096 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,115 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:48,116 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,127 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,127 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 18:17:48,179 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:17:48,179 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,203 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,211 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:17:48,211 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,268 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,268 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:28 [2020-11-29 18:17:48,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:48,329 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2020-11-29 18:17:48,330 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,376 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,377 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2020-11-29 18:17:48,379 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:17:48,386 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,412 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,412 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:30 [2020-11-29 18:17:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:48,484 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-11-29 18:17:48,485 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,532 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:17:48,547 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2020-11-29 18:17:48,548 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,589 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,589 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:42 [2020-11-29 18:17:48,657 INFO L441 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-11-29 18:17:48,669 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 18:17:48,669 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:48,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,704 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-29 18:17:48,705 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2020-11-29 18:17:48,709 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:48,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:48,731 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:48,731 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:18 [2020-11-29 18:17:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:48,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:17:48,975 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:17:52,298 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-29 18:17:53,372 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 18:17:53,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:53,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037228215] [2020-11-29 18:17:53,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:53,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 10 [2020-11-29 18:17:53,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773343525] [2020-11-29 18:17:53,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 18:17:53,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:17:53,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 18:17:53,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2020-11-29 18:17:53,390 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 11 states. [2020-11-29 18:17:53,952 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-11-29 18:17:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:54,931 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2020-11-29 18:17:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:17:54,932 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2020-11-29 18:17:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:17:54,933 INFO L225 Difference]: With dead ends: 64 [2020-11-29 18:17:54,933 INFO L226 Difference]: Without dead ends: 64 [2020-11-29 18:17:54,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=75, Invalid=164, Unknown=1, NotChecked=0, Total=240 [2020-11-29 18:17:54,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-29 18:17:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-11-29 18:17:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-29 18:17:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2020-11-29 18:17:54,942 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 13 [2020-11-29 18:17:54,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:17:54,942 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2020-11-29 18:17:54,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 18:17:54,942 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2020-11-29 18:17:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:17:54,943 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:17:54,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:55,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 18:17:55,150 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:17:55,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:55,151 INFO L82 PathProgramCache]: Analyzing trace with hash 784302226, now seen corresponding path program 1 times [2020-11-29 18:17:55,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:17:55,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912078053] [2020-11-29 18:17:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 18:17:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:55,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:17:55,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:17:55,385 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:17:55,385 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:55,388 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,389 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 18:17:55,405 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:17:55,405 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,416 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:55,416 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-11-29 18:17:55,482 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:55,483 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2020-11-29 18:17:55,484 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,523 INFO L625 ElimStorePlain]: treesize reduction 26, result has 46.9 percent of original size [2020-11-29 18:17:55,523 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,523 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:23 [2020-11-29 18:17:55,582 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-11-29 18:17:55,582 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2020-11-29 18:17:55,583 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,606 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:55,607 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:17:55,607 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:37 [2020-11-29 18:17:55,654 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-29 18:17:55,654 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2020-11-29 18:17:55,658 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:55,674 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:17:55,676 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:17:55,676 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:15 [2020-11-29 18:17:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:55,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:17:59,879 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 18:18:06,589 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 18:18:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:18:06,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912078053] [2020-11-29 18:18:06,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:18:06,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2020-11-29 18:18:06,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284528604] [2020-11-29 18:18:06,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:18:06,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:18:06,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:18:06,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=63, Unknown=3, NotChecked=0, Total=90 [2020-11-29 18:18:06,605 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 10 states. [2020-11-29 18:18:07,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:18:07,471 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-11-29 18:18:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:18:07,471 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-29 18:18:07,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:18:07,472 INFO L225 Difference]: With dead ends: 63 [2020-11-29 18:18:07,473 INFO L226 Difference]: Without dead ends: 63 [2020-11-29 18:18:07,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=68, Invalid=139, Unknown=3, NotChecked=0, Total=210 [2020-11-29 18:18:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-29 18:18:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-29 18:18:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-29 18:18:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-11-29 18:18:07,482 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 13 [2020-11-29 18:18:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:18:07,483 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-11-29 18:18:07,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:18:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-11-29 18:18:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:18:07,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:18:07,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:18:07,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 18:18:07,684 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr15ASSERT_VIOLATIONMEMORY_FREE, free_dataErr6REQUIRES_VIOLATION, free_dataErr16ASSERT_VIOLATIONMEMORY_FREE, free_dataErr5REQUIRES_VIOLATION, free_dataErr17ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr14ASSERT_VIOLATIONMEMORY_FREE, free_dataErr3REQUIRES_VIOLATION, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-29 18:18:07,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:18:07,685 INFO L82 PathProgramCache]: Analyzing trace with hash 525559316, now seen corresponding path program 1 times [2020-11-29 18:18:07,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:18:07,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406174871] [2020-11-29 18:18:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 18:18:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:18:08,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:18:08,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:18:08,016 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:18:08,016 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,020 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,020 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,020 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 18:18:08,056 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,057 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-29 18:18:08,057 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,061 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,061 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-11-29 18:18:08,087 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 18:18:08,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,095 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,096 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,096 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-11-29 18:18:08,120 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:18:08,120 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,128 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,129 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,129 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-11-29 18:18:08,185 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-11-29 18:18:08,185 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2020-11-29 18:18:08,186 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,199 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:08,200 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:08,201 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2020-11-29 18:19:27,757 WARN L193 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-11-29 18:19:27,758 INFO L350 Elim1Store]: treesize reduction 367, result has 44.3 percent of original size [2020-11-29 18:19:27,759 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 319 [2020-11-29 18:19:27,763 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-29 18:19:27,767 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 5, 2, 1] term [2020-11-29 18:19:27,767 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 9 disjuncts [2020-11-29 18:19:27,769 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-29 18:19:27,772 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-29 18:19:27,774 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:27,911 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 17 [2020-11-29 18:19:27,912 INFO L625 ElimStorePlain]: treesize reduction 263, result has 8.0 percent of original size [2020-11-29 18:19:27,913 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:27,913 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:20 [2020-11-29 18:19:27,928 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-29 18:19:27,928 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2020-11-29 18:19:27,930 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:27,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:27,932 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:27,932 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:5 [2020-11-29 18:19:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:27,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:27,988 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:28,042 INFO L625 ElimStorePlain]: treesize reduction 83, result has 29.1 percent of original size [2020-11-29 18:19:28,043 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:28,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:34 [2020-11-29 18:19:30,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|alloc_data_#t~mem7.offset| (_ BitVec 32))) (= (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem7.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem7.base|) |alloc_data_#t~mem7.offset| v_DerPreprocessor_1) (bvadd |alloc_data_#t~mem7.offset| (_ bv1 32)) v_DerPreprocessor_2) (bvadd |alloc_data_#t~mem7.offset| (_ bv2 32)) v_DerPreprocessor_3) (bvadd |alloc_data_#t~mem7.offset| (_ bv3 32)) v_DerPreprocessor_4)) c_alloc_data_~pdata.base) (bvadd c_alloc_data_~pdata.offset (_ bv4 32)))))) is different from false [2020-11-29 18:19:39,110 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 33 [2020-11-29 18:19:41,803 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-11-29 18:19:41,818 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 148 [2020-11-29 18:19:41,824 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:41,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:41,860 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:41,860 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:77, output treesize:70 [2020-11-29 18:19:50,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406174871] [2020-11-29 18:19:50,168 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2020-11-29 18:19:50,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1309076916] [2020-11-29 18:19:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-29 18:19:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:50,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:19:50,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:50,548 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@663d34e3 [2020-11-29 18:19:50,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943162651] [2020-11-29 18:19:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bebaf12e-e950-4361-b812-5d101ead9c4b/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:19:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:50,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:19:50,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:50,723 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@663d34e3 [2020-11-29 18:19:50,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:50,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-29 18:19:50,724 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-11-29 18:19:50,724 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:19:51,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-29 18:19:51,345 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-29 18:19:51,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:19:51 BoogieIcfgContainer [2020-11-29 18:19:51,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:19:51,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:19:51,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:19:51,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:19:51,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:29" (3/4) ... [2020-11-29 18:19:51,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:19:51,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:19:51,356 INFO L168 Benchmark]: Toolchain (without parser) took 143991.00 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 36.1 MB in the beginning and 32.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:51,357 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:19:51,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.15 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 39.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:51,364 INFO L168 Benchmark]: Boogie Preprocessor took 93.44 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 36.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:51,365 INFO L168 Benchmark]: RCFGBuilder took 1276.05 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 36.8 MB in the beginning and 37.4 MB in the end (delta: -576.0 kB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:51,365 INFO L168 Benchmark]: TraceAbstraction took 141842.00 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 36.9 MB in the beginning and 33.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:51,366 INFO L168 Benchmark]: Witness Printer took 8.20 ms. Allocated memory is still 111.1 MB. Free memory is still 32.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:19:51,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 761.15 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 39.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.44 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 36.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1276.05 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 36.8 MB in the beginning and 37.4 MB in the end (delta: -576.0 kB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 141842.00 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 36.9 MB in the beginning and 33.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * Witness Printer took 8.20 ms. Allocated memory is still 111.1 MB. Free memory is still 32.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L544] TData data; [L545] CALL alloc_data(&data) [L529] pdata->lo = (int *)malloc(sizeof(int)) [L530] pdata->hi = (int *)malloc(sizeof(int)) [L531] EXPR pdata->lo [L531] *(pdata->lo) = 4 [L532] EXPR pdata->hi [L532] *(pdata->hi) = 8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 106 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 141.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 155 SDslu, 707 SDs, 0 SdLazy, 954 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 28.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 29.7s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 15 QuantifiedInterpolants, 9496 SizeOfPredicates, 40 NumberOfNonLiveVariables, 450 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...