./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 86b203c3a804c103d90401bd32cfcff28939b920 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 86b203c3a804c103d90401bd32cfcff28939b920 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:10:06,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:10:06,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:10:06,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:10:06,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:10:06,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:10:06,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:10:06,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:10:06,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:10:06,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:10:06,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:10:06,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:10:06,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:10:06,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:10:06,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:10:06,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:10:06,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:10:06,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:10:06,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:10:06,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:10:06,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:10:06,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:10:06,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:10:06,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:10:06,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:10:06,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:10:06,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:10:06,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:10:06,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:10:06,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:10:06,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:10:06,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:10:06,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:10:06,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:10:06,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:10:06,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:10:06,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:10:06,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:10:06,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:10:06,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:10:06,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:10:06,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 11:10:06,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:10:06,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:10:06,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:10:06,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:10:06,718 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:10:06,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:10:06,718 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:10:06,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:10:06,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:10:06,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:10:06,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:10:06,719 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:10:06,720 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:10:06,720 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:10:06,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:10:06,720 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:10:06,721 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:10:06,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:10:06,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:10:06,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:10:06,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:10:06,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:10:06,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:10:06,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:10:06,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:10:06,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:10:06,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:10:06,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:10:06,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 -> 86b203c3a804c103d90401bd32cfcff28939b920 [2019-12-07 11:10:06,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:10:06,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:10:06,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:10:06,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:10:06,834 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:10:06,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 11:10:06,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/ea9b0d083/e1b3ca818ac54c41b2549b10e9348dc5/FLAGc72c88279 [2019-12-07 11:10:07,303 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:10:07,303 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 11:10:07,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/ea9b0d083/e1b3ca818ac54c41b2549b10e9348dc5/FLAGc72c88279 [2019-12-07 11:10:07,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/ea9b0d083/e1b3ca818ac54c41b2549b10e9348dc5 [2019-12-07 11:10:07,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:10:07,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:10:07,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:10:07,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:10:07,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:10:07,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:10:07" (1/1) ... [2019-12-07 11:10:07,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9050c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:07, skipping insertion in model container [2019-12-07 11:10:07,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:10:07" (1/1) ... [2019-12-07 11:10:07,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:10:07,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:10:07,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:10:07,587 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) [2019-12-07 11:10:07,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31391c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:07, skipping insertion in model container [2019-12-07 11:10:07,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:10:07,588 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 11:10:07,590 INFO L168 Benchmark]: Toolchain (without parser) took 266.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:10:07,590 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:10:07,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:10:07,592 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:10:08,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:10:08,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:10:08,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:10:08,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:10:08,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:10:08,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:10:08,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:10:08,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:10:08,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:10:08,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:10:08,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:10:08,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:10:08,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:10:08,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:10:08,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:10:08,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:10:08,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:10:08,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:10:08,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:10:08,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:10:08,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:10:08,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:10:08,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:10:08,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:10:08,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:10:08,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:10:08,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:10:08,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:10:08,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:10:08,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:10:08,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:10:08,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:10:08,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:10:08,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:10:08,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:10:08,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:10:08,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:10:08,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:10:08,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:10:08,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:10:08,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 11:10:08,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:10:08,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:10:08,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:10:08,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:10:08,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:10:08,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:10:08,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:10:08,726 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:10:08,726 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:10:08,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:10:08,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:10:08,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:10:08,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:10:08,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:10:08,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:10:08,728 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 -> 86b203c3a804c103d90401bd32cfcff28939b920 [2019-12-07 11:10:08,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:10:08,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:10:08,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:10:08,907 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:10:08,908 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:10:08,908 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 11:10:08,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/fca141afe/228588ac89b24b199c4ac92d9acb6d5b/FLAGa2aa941db [2019-12-07 11:10:09,330 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:10:09,331 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 11:10:09,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/fca141afe/228588ac89b24b199c4ac92d9acb6d5b/FLAGa2aa941db [2019-12-07 11:10:09,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/data/fca141afe/228588ac89b24b199c4ac92d9acb6d5b [2019-12-07 11:10:09,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:10:09,351 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:10:09,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:10:09,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:10:09,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:10:09,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7867ea24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09, skipping insertion in model container [2019-12-07 11:10:09,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:10:09,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:10:09,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:10:09,587 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:10:09,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:10:09,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:10:09,610 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:10:09,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:10:09,666 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:10:09,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09 WrapperNode [2019-12-07 11:10:09,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:10:09,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:10:09,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:10:09,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:10:09,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... [2019-12-07 11:10:09,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:10:09,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:10:09,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:10:09,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:10:09,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2019-12-07 11:10:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 11:10:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 11:10:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 11:10:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 11:10:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 11:10:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 11:10:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 11:10:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 11:10:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 11:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 11:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 11:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 11:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 11:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 11:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 11:10:09,946 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 11:10:10,034 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:10:10,034 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 11:10:10,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:10:10 BoogieIcfgContainer [2019-12-07 11:10:10,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:10:10,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:10:10,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:10:10,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:10:10,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:10:09" (1/3) ... [2019-12-07 11:10:10,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6472acba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:10:10, skipping insertion in model container [2019-12-07 11:10:10,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:10:09" (2/3) ... [2019-12-07 11:10:10,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6472acba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:10:10, skipping insertion in model container [2019-12-07 11:10:10,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:10:10" (3/3) ... [2019-12-07 11:10:10,042 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2019-12-07 11:10:10,050 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:10:10,057 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-12-07 11:10:10,065 INFO L249 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-12-07 11:10:10,077 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:10:10,077 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 11:10:10,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:10:10,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:10:10,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:10:10,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:10:10,078 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:10:10,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:10:10,088 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2019-12-07 11:10:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:10:10,093 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:10,094 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:10,094 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:10,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1901459912, now seen corresponding path program 1 times [2019-12-07 11:10:10,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:10,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050886064] [2019-12-07 11:10:10,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:10,202 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 11:10:10,208 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:10,260 INFO L377 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 [2019-12-07 11:10:10,261 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:10,266 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:10,267 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:10:10,267 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 11:10:10,358 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:10,359 INFO L377 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 14 treesize of output 30 [2019-12-07 11:10:10,361 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:10,378 INFO L614 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-12-07 11:10:10,379 INFO L534 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. [2019-12-07 11:10:10,379 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-12-07 11:10:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:10,394 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:10,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050886064] [2019-12-07 11:10:10,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:10:10,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-12-07 11:10:10,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63901628] [2019-12-07 11:10:10,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 11:10:10,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:10,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 11:10:10,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:10:10,535 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 9 states. [2019-12-07 11:10:10,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:10,923 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-12-07 11:10:10,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 11:10:10,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-12-07 11:10:10,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:10,930 INFO L225 Difference]: With dead ends: 44 [2019-12-07 11:10:10,930 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 11:10:10,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-12-07 11:10:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 11:10:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-12-07 11:10:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 11:10:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-12-07 11:10:10,955 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 19 [2019-12-07 11:10:10,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:10,957 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2019-12-07 11:10:10,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 11:10:10,957 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-12-07 11:10:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:10:10,958 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:10,958 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:11,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:10:11,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:11,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1901459911, now seen corresponding path program 1 times [2019-12-07 11:10:11,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:11,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699968164] [2019-12-07 11:10:11,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:11,265 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2019-12-07 11:10:11,267 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:11,273 INFO L377 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 [2019-12-07 11:10:11,273 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:11,280 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:11,283 INFO L377 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 [2019-12-07 11:10:11,283 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:11,289 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:11,289 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:10:11,289 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 11:10:11,392 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:11,392 INFO L377 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 [2019-12-07 11:10:11,393 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:11,401 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:11,405 INFO L377 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 [2019-12-07 11:10:11,406 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:11,415 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:11,416 INFO L534 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. [2019-12-07 11:10:11,416 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2019-12-07 11:10:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:11,446 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:11,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:11,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:11,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:11,632 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:12,806 WARN L192 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2019-12-07 11:10:12,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:13,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699968164] [2019-12-07 11:10:13,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:10:13,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-12-07 11:10:13,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472439140] [2019-12-07 11:10:13,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-12-07 11:10:13,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:13,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 11:10:13,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-12-07 11:10:13,636 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 16 states. [2019-12-07 11:10:21,056 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-12-07 11:10:28,149 WARN L192 SmtUtils]: Spent 2.25 s on a formula simplification that was a NOOP. DAG size: 54 [2019-12-07 11:10:33,357 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 11:10:40,162 WARN L192 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 11:10:51,898 WARN L192 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-12-07 11:10:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:56,751 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-12-07 11:10:56,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 11:10:56,752 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2019-12-07 11:10:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:56,754 INFO L225 Difference]: With dead ends: 34 [2019-12-07 11:10:56,754 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:10:56,754 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=85, Invalid=374, Unknown=3, NotChecked=0, Total=462 [2019-12-07 11:10:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:10:56,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:10:56,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:10:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-12-07 11:10:56,759 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 19 [2019-12-07 11:10:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:56,759 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-12-07 11:10:56,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-12-07 11:10:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-12-07 11:10:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 11:10:56,760 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:56,760 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:56,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:10:56,961 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:56,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1941874086, now seen corresponding path program 1 times [2019-12-07 11:10:56,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:56,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074348170] [2019-12-07 11:10:56,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:57,040 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:10:57,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:57,076 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:57,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:10:57,119 INFO L377 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 8 treesize of output 6 [2019-12-07 11:10:57,120 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 11:10:57,135 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:57,136 INFO L534 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. [2019-12-07 11:10:57,136 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2019-12-07 11:10:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:57,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074348170] [2019-12-07 11:10:57,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:10:57,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-12-07 11:10:57,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537283045] [2019-12-07 11:10:57,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 11:10:57,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 11:10:57,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 11:10:57,298 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 12 states. [2019-12-07 11:10:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:57,441 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-12-07 11:10:57,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:10:57,441 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-12-07 11:10:57,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:57,442 INFO L225 Difference]: With dead ends: 32 [2019-12-07 11:10:57,442 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 11:10:57,443 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-12-07 11:10:57,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 11:10:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 11:10:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 11:10:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-12-07 11:10:57,446 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2019-12-07 11:10:57,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:57,446 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-12-07 11:10:57,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 11:10:57,446 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-12-07 11:10:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 11:10:57,446 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:57,447 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:57,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:10:57,648 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:57,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:57,648 INFO L82 PathProgramCache]: Analyzing trace with hash 294926047, now seen corresponding path program 1 times [2019-12-07 11:10:57,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:57,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434498610] [2019-12-07 11:10:57,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:57,758 INFO L264 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:10:57,759 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:57,855 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:57,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434498610] [2019-12-07 11:10:57,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:10:57,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2019-12-07 11:10:57,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627394781] [2019-12-07 11:10:57,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 11:10:57,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:57,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 11:10:57,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-12-07 11:10:57,964 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 12 states. [2019-12-07 11:10:58,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:58,141 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-12-07 11:10:58,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:10:58,142 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2019-12-07 11:10:58,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:58,143 INFO L225 Difference]: With dead ends: 32 [2019-12-07 11:10:58,143 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 11:10:58,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 11:10:58,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 11:10:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-12-07 11:10:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 11:10:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-12-07 11:10:58,147 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2019-12-07 11:10:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:58,148 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-12-07 11:10:58,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 11:10:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-12-07 11:10:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 11:10:58,149 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:58,149 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:58,349 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:10:58,350 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:58,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash -43907359, now seen corresponding path program 1 times [2019-12-07 11:10:58,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:58,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665277849] [2019-12-07 11:10:58,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:58,444 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 11:10:58,446 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:58,459 INFO L377 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 [2019-12-07 11:10:58,459 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,461 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:58,461 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,462 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-12-07 11:10:58,488 INFO L377 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 0 case distinctions, treesize of input 23 treesize of output 11 [2019-12-07 11:10:58,488 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,490 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:58,491 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,491 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:7 [2019-12-07 11:10:58,494 INFO L377 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 [2019-12-07 11:10:58,494 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,496 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:58,496 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:10:58,496 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-12-07 11:10:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:58,513 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:58,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665277849] [2019-12-07 11:10:58,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:10:58,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2019-12-07 11:10:58,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168598304] [2019-12-07 11:10:58,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 11:10:58,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:58,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 11:10:58,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-12-07 11:10:58,551 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 10 states. [2019-12-07 11:10:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:58,664 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-12-07 11:10:58,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 11:10:58,664 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-12-07 11:10:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:58,665 INFO L225 Difference]: With dead ends: 30 [2019-12-07 11:10:58,665 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 11:10:58,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-12-07 11:10:58,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 11:10:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 11:10:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 11:10:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-12-07 11:10:58,669 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 29 [2019-12-07 11:10:58,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:58,669 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-12-07 11:10:58,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 11:10:58,669 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-12-07 11:10:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 11:10:58,670 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:10:58,670 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:10:58,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:10:58,871 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:10:58,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:10:58,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1361128031, now seen corresponding path program 1 times [2019-12-07 11:10:58,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:10:58,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733817114] [2019-12-07 11:10:58,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/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 [2019-12-07 11:10:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:10:58,965 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 11:10:58,967 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:10:59,041 INFO L377 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 [2019-12-07 11:10:59,041 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:59,053 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:59,054 INFO L534 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. [2019-12-07 11:10:59,054 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:15 [2019-12-07 11:10:59,121 INFO L377 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 0 case distinctions, treesize of input 23 treesize of output 11 [2019-12-07 11:10:59,122 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:59,131 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:59,132 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 11:10:59,132 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2019-12-07 11:10:59,137 INFO L377 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 [2019-12-07 11:10:59,137 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:10:59,145 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:10:59,146 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 11:10:59,146 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:22, output treesize:11 [2019-12-07 11:10:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:10:59,207 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:10:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:10:59,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733817114] [2019-12-07 11:10:59,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:10:59,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-12-07 11:10:59,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063668359] [2019-12-07 11:10:59,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 11:10:59,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:10:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 11:10:59,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2019-12-07 11:10:59,411 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 18 states. [2019-12-07 11:10:59,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:10:59,994 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-12-07 11:10:59,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 11:10:59,995 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2019-12-07 11:10:59,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:10:59,996 INFO L225 Difference]: With dead ends: 30 [2019-12-07 11:10:59,996 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 11:10:59,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2019-12-07 11:10:59,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 11:10:59,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-12-07 11:10:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 11:10:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-12-07 11:10:59,999 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 30 [2019-12-07 11:10:59,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:10:59,999 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-12-07 11:11:00,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 11:11:00,000 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-12-07 11:11:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 11:11:00,000 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:11:00,000 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:11:00,201 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:11:00,202 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:11:00,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:11:00,202 INFO L82 PathProgramCache]: Analyzing trace with hash 754704099, now seen corresponding path program 1 times [2019-12-07 11:11:00,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:11:00,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054542771] [2019-12-07 11:11:00,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 11:11:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:11:00,298 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2019-12-07 11:11:00,300 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:11:00,304 INFO L377 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 [2019-12-07 11:11:00,304 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,306 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:00,306 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,306 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 11:11:00,370 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:00,370 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-12-07 11:11:00,371 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,385 INFO L614 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-12-07 11:11:00,386 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,386 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-12-07 11:11:00,405 INFO L377 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 [2019-12-07 11:11:00,406 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,414 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:00,414 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,414 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:25 [2019-12-07 11:11:00,461 INFO L377 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 0 case distinctions, treesize of input 33 treesize of output 17 [2019-12-07 11:11:00,462 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,469 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:00,469 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,469 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:27 [2019-12-07 11:11:00,487 INFO L377 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 25 treesize of output 13 [2019-12-07 11:11:00,488 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,498 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:00,498 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,498 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:17 [2019-12-07 11:11:00,542 INFO L377 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 0 case distinctions, treesize of input 21 treesize of output 21 [2019-12-07 11:11:00,543 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:00,551 INFO L614 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-12-07 11:11:00,551 INFO L534 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. [2019-12-07 11:11:00,552 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:11 [2019-12-07 11:11:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:11:00,574 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:11:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:11:00,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054542771] [2019-12-07 11:11:00,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 11:11:00,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 23 [2019-12-07 11:11:00,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643572675] [2019-12-07 11:11:00,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-12-07 11:11:00,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:11:00,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 11:11:00,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2019-12-07 11:11:00,864 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 15 states. [2019-12-07 11:11:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:11:01,270 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-12-07 11:11:01,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 11:11:01,271 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2019-12-07 11:11:01,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:11:01,272 INFO L225 Difference]: With dead ends: 28 [2019-12-07 11:11:01,272 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 11:11:01,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2019-12-07 11:11:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 11:11:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 11:11:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 11:11:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-12-07 11:11:01,276 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 31 [2019-12-07 11:11:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:11:01,277 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-12-07 11:11:01,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-12-07 11:11:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-12-07 11:11:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:11:01,278 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:11:01,278 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:11:01,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:11:01,479 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:11:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:11:01,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1920990692, now seen corresponding path program 1 times [2019-12-07 11:11:01,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:11:01,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088693567] [2019-12-07 11:11:01,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 11:11:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:11:01,574 INFO L264 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 11:11:01,575 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:11:01,578 INFO L377 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 [2019-12-07 11:11:01,579 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,580 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:01,580 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,580 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 11:11:01,694 INFO L377 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 [2019-12-07 11:11:01,694 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,707 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:01,708 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,708 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:44 [2019-12-07 11:11:01,789 INFO L377 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 0 case distinctions, treesize of input 49 treesize of output 29 [2019-12-07 11:11:01,789 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,799 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:01,800 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,800 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:44 [2019-12-07 11:11:01,803 INFO L377 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 41 treesize of output 25 [2019-12-07 11:11:01,804 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,813 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:11:01,813 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:11:01,813 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:32 [2019-12-07 11:11:01,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:11:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 11:11:04,015 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:11:04,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:11:12,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:11:16,519 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-12-07 11:11:18,718 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-12-07 11:11:24,126 WARN L192 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 55 [2019-12-07 11:11:24,129 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-12-07 11:11:24,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:11:24,134 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-12-07 11:11:24,140 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_main_~s~0.base_BEFORE_CALL_10 (_ BitVec 32)) (|v_alloc_node_#t~malloc2.base_57| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_3| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse1 (store (store |c_#valid| |v_alloc_node_#t~malloc2.base_57| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_10 (_ bv0 1)))) (or (not (= (select |c_#valid| |v_alloc_node_#t~malloc2.base_57|) (_ bv0 1))) (= |v_alloc_node_#t~malloc2.base_57| (_ bv0 32)) (exists ((|v_alloc_node_#t~malloc2.base_56| (_ BitVec 32))) (let ((.cse0 (store (store |c_old(#valid)| |v_alloc_node_#t~malloc2.base_56| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_10 (_ bv0 1)))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_alloc_node_#t~malloc2.base_56|)) (not (= (store .cse0 |v_alloc_node_#t~malloc2.base_56| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_3|)) (= (_ bv1 1) (select .cse0 |v_alloc_node_#t~malloc2.base_56|)) (not (= |v_alloc_node_#t~malloc2.base_56| (_ bv0 32)))))) (not (= (_ bv1 1) (select .cse1 |v_alloc_node_#t~malloc2.base_57|))) (= (store .cse1 |v_alloc_node_#t~malloc2.base_57| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_3|)))) is different from false [2019-12-07 11:11:52,972 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_alloc_node_~temp~0.base_63 (_ BitVec 32)) (|v_alloc_node_#t~malloc2.base_56| (_ BitVec 32))) (let ((.cse1 (store |c_old(#valid)| v_alloc_node_~temp~0.base_63 (_ bv1 1)))) (let ((.cse0 (store (store .cse1 |v_alloc_node_#t~malloc2.base_56| (_ bv1 1)) v_alloc_node_~temp~0.base_63 (_ bv0 1)))) (and (= (_ bv1 1) (select .cse0 |v_alloc_node_#t~malloc2.base_56|)) (not (= |v_alloc_node_#t~malloc2.base_56| (_ bv0 32))) (not (= (store .cse0 |v_alloc_node_#t~malloc2.base_56| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|)) (= (_ bv0 1) (select .cse1 |v_alloc_node_#t~malloc2.base_56|)) (= (_ bv0 1) (select |c_old(#valid)| v_alloc_node_~temp~0.base_63)))))) (forall ((v_prenex_6 (_ BitVec 32))) (let ((.cse2 (store (store |c_#valid| v_prenex_6 (_ bv1 1)) |c_alloc_node_#res.base| (_ bv0 1)))) (or (not (= (select |c_#valid| v_prenex_6) (_ bv0 1))) (not (= (bvadd (select .cse2 v_prenex_6) (_ bv1 1)) (_ bv0 1))) (= v_prenex_6 (_ bv0 32)) (= (store .cse2 v_prenex_6 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|)))))) is different from false [2019-12-07 11:11:55,283 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_prenex_6 (_ BitVec 32)) (|v_alloc_node_#t~malloc2.base_61| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse0 (store |c_#valid| |v_alloc_node_#t~malloc2.base_61| (_ bv1 1)))) (let ((.cse3 (store (store .cse0 v_prenex_6 (_ bv1 1)) |v_alloc_node_#t~malloc2.base_61| (_ bv0 1)))) (or (not (= (select |c_#valid| |v_alloc_node_#t~malloc2.base_61|) (_ bv0 1))) (not (= (_ bv0 1) (select .cse0 v_prenex_6))) (exists ((v_alloc_node_~temp~0.base_63 (_ BitVec 32)) (|v_alloc_node_#t~malloc2.base_56| (_ BitVec 32))) (let ((.cse2 (store |c_old(#valid)| v_alloc_node_~temp~0.base_63 (_ bv1 1)))) (let ((.cse1 (store (store .cse2 |v_alloc_node_#t~malloc2.base_56| (_ bv1 1)) v_alloc_node_~temp~0.base_63 (_ bv0 1)))) (and (= (_ bv1 1) (select .cse1 |v_alloc_node_#t~malloc2.base_56|)) (not (= |v_alloc_node_#t~malloc2.base_56| (_ bv0 32))) (not (= (store .cse1 |v_alloc_node_#t~malloc2.base_56| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|)) (= (_ bv0 1) (select .cse2 |v_alloc_node_#t~malloc2.base_56|)) (= (_ bv0 1) (select |c_old(#valid)| v_alloc_node_~temp~0.base_63)))))) (= (store .cse3 v_prenex_6 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|) (= v_prenex_6 (_ bv0 32)) (not (= (_ bv1 1) (select .cse3 v_prenex_6))))))) is different from false [2019-12-07 11:11:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2019-12-07 11:11:55,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088693567] [2019-12-07 11:11:55,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 11:11:55,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18] total 33 [2019-12-07 11:11:55,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328628269] [2019-12-07 11:11:55,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 11:11:55,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:11:55,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 11:11:55,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=794, Unknown=57, NotChecked=180, Total=1122 [2019-12-07 11:11:55,306 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 18 states. [2019-12-07 11:12:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:12:02,566 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-12-07 11:12:02,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 11:12:02,567 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-07 11:12:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:12:02,568 INFO L225 Difference]: With dead ends: 27 [2019-12-07 11:12:02,568 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:12:02,569 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 54.2s TimeCoverageRelationStatistics Valid=163, Invalid=1431, Unknown=58, NotChecked=240, Total=1892 [2019-12-07 11:12:02,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:12:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:12:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:12:02,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:12:02,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-07 11:12:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:12:02,569 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:12:02,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 11:12:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:12:02,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:12:02,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 11:12:02,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:12:02 BoogieIcfgContainer [2019-12-07 11:12:02,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:12:02,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:12:02,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:12:02,777 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:12:02,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:10:10" (3/4) ... [2019-12-07 11:12:02,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:12:02,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 11:12:02,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-12-07 11:12:02,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2019-12-07 11:12:02,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-12-07 11:12:02,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-12-07 11:12:02,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-12-07 11:12:02,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_node [2019-12-07 11:12:02,787 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-12-07 11:12:02,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 11:12:02,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:12:02,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:12:02,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5e7f1a1a-14e6-4944-90c3-b01f93c76de2/bin/uautomizer/witness.graphml [2019-12-07 11:12:02,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:12:02,816 INFO L168 Benchmark]: Toolchain (without parser) took 113465.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.2 MB). Free memory was 945.7 MB in the beginning and 846.3 MB in the end (delta: 99.4 MB). Peak memory consumption was 383.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:02,816 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:12:02,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:02,817 INFO L168 Benchmark]: Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:12:02,817 INFO L168 Benchmark]: RCFGBuilder took 329.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:02,817 INFO L168 Benchmark]: TraceAbstraction took 112739.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 855.2 MB in the end (delta: 197.7 MB). Peak memory consumption was 356.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:02,817 INFO L168 Benchmark]: Witness Printer took 38.70 ms. Allocated memory is still 1.3 GB. Free memory was 855.2 MB in the beginning and 846.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:02,819 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 329.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 112739.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 855.2 MB in the end (delta: 197.7 MB). Peak memory consumption was 356.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.70 ms. Allocated memory is still 1.3 GB. Free memory was 855.2 MB in the beginning and 846.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 61 locations, 15 error locations. Result: SAFE, OverallTime: 112.6s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 52.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 236 SDslu, 650 SDs, 0 SdLazy, 1315 SolverSat, 73 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 22.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 280 SyntacticMatches, 9 SemanticMatches, 155 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 86.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 8 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 58.0s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 400 ConstructedInterpolants, 78 QuantifiedInterpolants, 125928 SizeOfPredicates, 52 NumberOfNonLiveVariables, 717 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 39/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...