./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.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_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 eb5e103dbe59a250cbe01613b667895523582d5d ............................................................................................................................ 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_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 eb5e103dbe59a250cbe01613b667895523582d5d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:16:23,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:16:23,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:16:23,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:16:23,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:16:23,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:16:23,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:16:23,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:16:23,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:16:23,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:16:23,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:16:23,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:16:23,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:16:23,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:16:23,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:16:23,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:16:23,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:16:23,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:16:23,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:16:23,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:16:23,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:16:23,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:16:23,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:16:23,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:16:23,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:16:23,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:16:23,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:16:23,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:16:23,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:16:23,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:16:23,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:16:23,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:16:23,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:16:23,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:16:23,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:16:23,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:16:23,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:16:23,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:16:23,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:16:23,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:16:23,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:16:23,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 14:16:23,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:16:23,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:16:23,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:16:23,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:16:23,785 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:16:23,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:16:23,786 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:16:23,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:16:23,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:16:23,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:16:23,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:16:23,787 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 14:16:23,787 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 14:16:23,787 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 14:16:23,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:16:23,787 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:16:23,788 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:16:23,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:16:23,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:16:23,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:16:23,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:16:23,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:16:23,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:16:23,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:16:23,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:16:23,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:16:23,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:16:23,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:16:23,790 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_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 -> eb5e103dbe59a250cbe01613b667895523582d5d [2019-12-07 14:16:23,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:16:23,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:16:23,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:16:23,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:16:23,907 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:16:23,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-12-07 14:16:23,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/4b750e100/27ba3210432241169699c5bab0915f53/FLAG30286edbc [2019-12-07 14:16:24,461 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:16:24,462 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-12-07 14:16:24,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/4b750e100/27ba3210432241169699c5bab0915f53/FLAG30286edbc [2019-12-07 14:16:24,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/4b750e100/27ba3210432241169699c5bab0915f53 [2019-12-07 14:16:24,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:16:24,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 14:16:24,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:16:24,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:16:24,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:16:24,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:16:24" (1/1) ... [2019-12-07 14:16:24,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c43023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:24, skipping insertion in model container [2019-12-07 14:16:24,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:16:24" (1/1) ... [2019-12-07 14:16:24,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:16:25,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:16:25,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:16:25,234 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 14:16:25,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40ef1eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:25, skipping insertion in model container [2019-12-07 14:16:25,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:16:25,235 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 14:16:25,237 INFO L168 Benchmark]: Toolchain (without parser) took 252.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:25,237 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:16:25,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:16:25,239 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 518]: 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 14:16:26,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:16:26,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:16:26,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:16:26,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:16:26,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:16:26,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:16:26,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:16:26,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:16:26,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:16:26,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:16:26,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:16:26,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:16:26,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:16:26,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:16:26,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:16:26,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:16:26,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:16:26,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:16:26,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:16:26,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:16:26,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:16:26,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:16:26,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:16:26,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:16:26,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:16:26,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:16:26,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:16:26,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:16:26,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:16:26,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:16:26,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:16:26,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:16:26,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:16:26,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:16:26,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:16:26,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:16:26,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:16:26,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:16:26,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:16:26,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:16:26,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 14:16:26,393 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:16:26,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:16:26,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:16:26,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:16:26,394 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:16:26,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:16:26,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 14:16:26,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:16:26,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:16:26,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:16:26,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:16:26,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:16:26,398 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_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 -> eb5e103dbe59a250cbe01613b667895523582d5d [2019-12-07 14:16:26,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:16:26,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:16:26,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:16:26,575 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:16:26,576 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:16:26,576 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-12-07 14:16:26,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/53c9fe093/86e88643cf3641f6b745ba8054d94766/FLAGd5b8456d4 [2019-12-07 14:16:27,077 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:16:27,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-12-07 14:16:27,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/53c9fe093/86e88643cf3641f6b745ba8054d94766/FLAGd5b8456d4 [2019-12-07 14:16:27,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/data/53c9fe093/86e88643cf3641f6b745ba8054d94766 [2019-12-07 14:16:27,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:16:27,099 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 14:16:27,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:16:27,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:16:27,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:16:27,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484ff3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27, skipping insertion in model container [2019-12-07 14:16:27,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:16:27,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:16:27,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:16:27,374 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:16:27,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:16:27,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:16:27,409 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:16:27,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:16:27,475 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:16:27,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27 WrapperNode [2019-12-07 14:16:27,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:16:27,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:16:27,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:16:27,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:16:27,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... [2019-12-07 14:16:27,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:16:27,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:16:27,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:16:27,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:16:27,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 14:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 14:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 14:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2019-12-07 14:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2019-12-07 14:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 14:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 14:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 14:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 14:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 14:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 14:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 14:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 14:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 14:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 14:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 14:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 14:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 14:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 14:16:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:16:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 14:16:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:16:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 14:16:27,956 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:16:27,956 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 14:16:27,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:16:27 BoogieIcfgContainer [2019-12-07 14:16:27,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:16:27,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:16:27,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:16:27,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:16:27,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:16:27" (1/3) ... [2019-12-07 14:16:27,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a06e982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:16:27, skipping insertion in model container [2019-12-07 14:16:27,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:16:27" (2/3) ... [2019-12-07 14:16:27,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a06e982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:16:27, skipping insertion in model container [2019-12-07 14:16:27,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:16:27" (3/3) ... [2019-12-07 14:16:27,962 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2019-12-07 14:16:27,969 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:16:27,973 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-12-07 14:16:27,981 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-12-07 14:16:27,993 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:16:27,993 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 14:16:27,993 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:16:27,993 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:16:27,994 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:16:27,994 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:16:27,994 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:16:27,994 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:16:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-12-07 14:16:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 14:16:28,010 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:28,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:28,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash -938857155, now seen corresponding path program 1 times [2019-12-07 14:16:28,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:28,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180017429] [2019-12-07 14:16:28,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:28,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:16:28,124 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:28,170 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 14:16:28,170 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,177 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,177 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,177 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 14:16:28,213 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,213 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 14:16:28,215 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,232 INFO L614 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-12-07 14:16:28,233 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 14:16:28,233 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-12-07 14:16:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:28,249 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:16:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:28,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180017429] [2019-12-07 14:16:28,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:16:28,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 14:16:28,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243468344] [2019-12-07 14:16:28,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:16:28,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:16:28,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:16:28,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:16:28,287 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2019-12-07 14:16:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:16:28,493 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-12-07 14:16:28,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:16:28,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 14:16:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:16:28,500 INFO L225 Difference]: With dead ends: 70 [2019-12-07 14:16:28,500 INFO L226 Difference]: Without dead ends: 67 [2019-12-07 14:16:28,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:16:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-12-07 14:16:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-12-07 14:16:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-12-07 14:16:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2019-12-07 14:16:28,528 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 9 [2019-12-07 14:16:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:16:28,528 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2019-12-07 14:16:28,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:16:28,528 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-12-07 14:16:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 14:16:28,528 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:28,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:28,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:16:28,730 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:28,731 INFO L82 PathProgramCache]: Analyzing trace with hash -938857154, now seen corresponding path program 1 times [2019-12-07 14:16:28,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:28,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414580969] [2019-12-07 14:16:28,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:28,837 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 14:16:28,838 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:28,844 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 14:16:28,844 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,850 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,853 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 14:16:28,853 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,858 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,859 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,859 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 14:16:28,891 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,891 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 14:16:28,892 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,900 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:28,904 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 14:16:28,905 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:28,918 INFO L614 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2019-12-07 14:16:28,919 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 14:16:28,919 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-12-07 14:16:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:28,934 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:16:28,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:16:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:29,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414580969] [2019-12-07 14:16:29,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:16:29,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 14:16:29,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533510326] [2019-12-07 14:16:29,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 14:16:29,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:16:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:16:29,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:16:29,138 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 8 states. [2019-12-07 14:16:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:16:29,950 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-12-07 14:16:29,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:16:29,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 14:16:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:16:29,952 INFO L225 Difference]: With dead ends: 65 [2019-12-07 14:16:29,952 INFO L226 Difference]: Without dead ends: 65 [2019-12-07 14:16:29,953 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:16:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-12-07 14:16:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-12-07 14:16:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-12-07 14:16:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-12-07 14:16:29,959 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2019-12-07 14:16:29,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:16:29,959 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2019-12-07 14:16:29,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 14:16:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-12-07 14:16:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:16:29,959 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:29,960 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:30,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:16:30,162 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:30,163 INFO L82 PathProgramCache]: Analyzing trace with hash -298593473, now seen corresponding path program 1 times [2019-12-07 14:16:30,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:30,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747800645] [2019-12-07 14:16:30,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:30,276 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 14:16:30,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:30,283 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 14:16:30,283 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,290 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,292 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 14:16:30,292 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,298 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,299 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,299 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 14:16:30,323 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 14:16:30,324 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 14:16:30,325 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,334 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 14:16:30,338 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-12-07 14:16:30,339 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,348 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,349 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 14:16:30,349 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-12-07 14:16:30,385 INFO L430 ElimStorePlain]: Different costs {1=[|v_#valid_67|], 3=[|v_#length_43|]} [2019-12-07 14:16:30,397 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,398 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 11 treesize of output 15 [2019-12-07 14:16:30,399 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,414 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,435 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,435 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 2 case distinctions, treesize of input 19 treesize of output 46 [2019-12-07 14:16:30,436 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,461 INFO L614 ElimStorePlain]: treesize reduction 28, result has 40.4 percent of original size [2019-12-07 14:16:30,462 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 14:16:30,462 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:19 [2019-12-07 14:16:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:30,474 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:16:30,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:16:30,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:16:30,611 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,612 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 14:16:30,612 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,623 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,623 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 14:16:30,624 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:30,651 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:30,652 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-12-07 14:16:30,652 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2019-12-07 14:16:30,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:16:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:30,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747800645] [2019-12-07 14:16:30,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:16:30,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 14:16:30,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242352048] [2019-12-07 14:16:30,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:16:30,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:16:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:16:30,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:16:30,894 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 10 states. [2019-12-07 14:16:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:16:31,576 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-12-07 14:16:31,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:16:31,576 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 14:16:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:16:31,577 INFO L225 Difference]: With dead ends: 63 [2019-12-07 14:16:31,577 INFO L226 Difference]: Without dead ends: 63 [2019-12-07 14:16:31,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:16:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-12-07 14:16:31,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-12-07 14:16:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-12-07 14:16:31,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-12-07 14:16:31,582 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2019-12-07 14:16:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:16:31,582 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2019-12-07 14:16:31,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:16:31,583 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-12-07 14:16:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 14:16:31,583 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:31,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:31,783 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:16:31,785 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:31,786 INFO L82 PathProgramCache]: Analyzing trace with hash 814480769, now seen corresponding path program 1 times [2019-12-07 14:16:31,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:31,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889558670] [2019-12-07 14:16:31,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:31,864 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:16:31,865 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:31,868 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 14:16:31,868 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,870 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:31,870 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,870 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 14:16:31,877 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 14:16:31,877 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,883 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:31,883 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 14:16:31,883 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-12-07 14:16:31,908 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:31,908 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 23 treesize of output 61 [2019-12-07 14:16:31,909 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,927 INFO L614 ElimStorePlain]: treesize reduction 26, result has 46.9 percent of original size [2019-12-07 14:16:31,927 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,927 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:23 [2019-12-07 14:16:31,951 INFO L343 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2019-12-07 14:16:31,952 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 1 case distinctions, treesize of input 31 treesize of output 26 [2019-12-07 14:16:31,952 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:31,963 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:31,964 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 14:16:31,964 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2019-12-07 14:16:31,986 INFO L343 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 14:16:31,986 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2019-12-07 14:16:31,987 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 14:16:31,992 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:31,993 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 14:16:31,993 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:17 [2019-12-07 14:16:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:32,007 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:16:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:32,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889558670] [2019-12-07 14:16:32,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:16:32,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-12-07 14:16:32,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279711208] [2019-12-07 14:16:32,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 14:16:32,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:16:32,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 14:16:32,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:16:32,063 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 10 states. [2019-12-07 14:16:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:16:32,564 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-12-07 14:16:32,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:16:32,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-12-07 14:16:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:16:32,565 INFO L225 Difference]: With dead ends: 62 [2019-12-07 14:16:32,565 INFO L226 Difference]: Without dead ends: 62 [2019-12-07 14:16:32,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-12-07 14:16:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-12-07 14:16:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-12-07 14:16:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 14:16:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-12-07 14:16:32,570 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2019-12-07 14:16:32,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:16:32,570 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-12-07 14:16:32,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 14:16:32,570 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-12-07 14:16:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 14:16:32,570 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:32,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:32,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:16:32,772 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:32,773 INFO L82 PathProgramCache]: Analyzing trace with hash 814480770, now seen corresponding path program 1 times [2019-12-07 14:16:32,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:32,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428592295] [2019-12-07 14:16:32,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:32,904 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 14:16:32,905 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:32,910 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 14:16:32,910 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,916 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,917 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 14:16:32,918 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,922 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,923 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,923 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 14:16:32,934 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 14:16:32,934 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,944 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,947 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 14:16:32,947 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,956 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,957 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,957 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2019-12-07 14:16:32,979 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,980 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 17 treesize of output 21 [2019-12-07 14:16:32,980 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:32,990 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:32,993 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 18 treesize of output 20 [2019-12-07 14:16:32,994 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,003 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:33,003 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,003 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:32 [2019-12-07 14:16:33,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 14:16:33,033 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-12-07 14:16:33,034 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,054 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:33,059 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 14:16:33,059 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2019-12-07 14:16:33,060 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,076 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:33,077 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,077 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:58, output treesize:46 [2019-12-07 14:16:33,102 INFO L430 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2019-12-07 14:16:33,107 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 14:16:33,107 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:33,121 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:33,123 INFO L343 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 14:16:33,123 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2019-12-07 14:16:33,124 INFO L534 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 14:16:33,131 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:33,132 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 14:16:33,132 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:60, output treesize:20 [2019-12-07 14:16:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:33,154 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:16:33,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:16:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:16:33,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428592295] [2019-12-07 14:16:33,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:16:33,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 10 [2019-12-07 14:16:33,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551198354] [2019-12-07 14:16:33,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 14:16:33,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 14:16:33,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 14:16:33,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:16:33,472 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 11 states. [2019-12-07 14:16:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:16:34,337 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-12-07 14:16:34,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:16:34,338 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-12-07 14:16:34,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:16:34,339 INFO L225 Difference]: With dead ends: 61 [2019-12-07 14:16:34,339 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 14:16:34,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-12-07 14:16:34,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 14:16:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-12-07 14:16:34,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 14:16:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-12-07 14:16:34,343 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 13 [2019-12-07 14:16:34,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:16:34,343 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2019-12-07 14:16:34,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 14:16:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-12-07 14:16:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 14:16:34,343 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:16:34,344 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:16:34,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:16:34,545 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 14:16:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:16:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1926354070, now seen corresponding path program 1 times [2019-12-07 14:16:34,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 14:16:34,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736654298] [2019-12-07 14:16:34,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/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 14:16:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:16:34,761 INFO L264 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:16:34,763 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:16:34,766 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 14:16:34,766 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,768 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,768 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,768 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 14:16:34,780 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,781 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 14:16:34,781 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,782 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,783 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,783 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:4 [2019-12-07 14:16:34,794 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 14:16:34,794 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,799 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,799 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 14:16:34,800 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2019-12-07 14:16:34,811 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 14:16:34,811 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,817 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,818 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,818 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-12-07 14:16:34,843 INFO L343 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2019-12-07 14:16:34,844 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 1 case distinctions, treesize of input 22 treesize of output 21 [2019-12-07 14:16:34,844 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:16:34,852 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:16:34,853 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 14:16:34,853 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:20 [2019-12-07 14:18:14,843 WARN L192 SmtUtils]: Spent 1.67 m on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2019-12-07 14:18:14,844 INFO L343 Elim1Store]: treesize reduction 343, result has 48.0 percent of original size [2019-12-07 14:18:14,844 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 343 [2019-12-07 14:18:14,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:14,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-12-07 14:18:14,924 INFO L534 ElimStorePlain]: Start of recursive call 2: 39 dim-0 vars, End of recursive call: 39 dim-0 vars, and 15 xjuncts. [2019-12-07 14:18:52,808 WARN L192 SmtUtils]: Spent 37.88 s on a formula simplification. DAG size of input: 308 DAG size of output: 251 [2019-12-07 14:18:52,809 INFO L614 ElimStorePlain]: treesize reduction 6873, result has 20.0 percent of original size [2019-12-07 14:18:52,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-12-07 14:18:52,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 14:18:52,825 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 27 dim-0 vars, and 28 xjuncts. [2019-12-07 14:18:52,826 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:1512 [2019-12-07 14:18:53,067 INFO L343 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 14:18:53,067 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2019-12-07 14:18:53,068 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:18:53,069 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:18:53,069 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 14:18:53,069 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:5 [2019-12-07 14:18:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:18:53,081 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:18:53,109 INFO L534 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 14:18:53,136 INFO L614 ElimStorePlain]: treesize reduction 83, result has 29.1 percent of original size [2019-12-07 14:18:53,137 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-12-07 14:18:53,137 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:34 [2019-12-07 14:18:54,900 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 215 treesize of output 146 [2019-12-07 14:18:54,900 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:18:54,910 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:18:54,911 INFO L534 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-12-07 14:18:54,911 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:75, output treesize:70 [2019-12-07 14:19:01,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736654298] [2019-12-07 14:19:01,159 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2019-12-07 14:19:01,159 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [198587543] [2019-12-07 14:19:01,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 14:19:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:19:01,315 INFO L264 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 14:19:01,316 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:19:01,317 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@fea21f6 [2019-12-07 14:19:01,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823362545] [2019-12-07 14:19:01,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8fe259e8-402b-4a03-8e50-05c8e51aa549/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:19:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:19:01,483 INFO L264 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:19:01,485 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:19:01,487 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@fea21f6 [2019-12-07 14:19:01,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:19:01,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 14:19:01,487 ERROR L206 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2019-12-07 14:19:01,488 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:19:02,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 14:19:02,106 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 14:19:02,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:19:02 BoogieIcfgContainer [2019-12-07 14:19:02,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:19:02,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:19:02,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:19:02,107 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:19:02,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:16:27" (3/4) ... [2019-12-07 14:19:02,109 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:19:02,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:19:02,110 INFO L168 Benchmark]: Toolchain (without parser) took 155010.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 947.0 MB in the beginning and 836.8 MB in the end (delta: 110.2 MB). Peak memory consumption was 312.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:19:02,110 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 14:19:02,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:19:02,110 INFO L168 Benchmark]: Boogie Preprocessor took 51.35 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 14:19:02,111 INFO L168 Benchmark]: RCFGBuilder took 429.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:19:02,111 INFO L168 Benchmark]: TraceAbstraction took 154148.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.0 GB in the beginning and 844.6 MB in the end (delta: 195.0 MB). Peak memory consumption was 266.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:19:02,111 INFO L168 Benchmark]: Witness Printer took 2.56 ms. Allocated memory is still 1.2 GB. Free memory was 844.6 MB in the beginning and 836.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:19:02,112 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 376.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.35 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 429.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 154148.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.0 GB in the beginning and 844.6 MB in the end (delta: 195.0 MB). Peak memory consumption was 266.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.56 ms. Allocated memory is still 1.2 GB. Free memory was 844.6 MB in the beginning and 836.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L535] TData data; [L536] CALL alloc_data(&data) [L518] pdata->lo = (int *)malloc(sizeof(int)) [L519] pdata->hi = (int *)malloc(sizeof(int)) [L520] EXPR pdata->lo [L520] *(pdata->lo) = 4 [L521] EXPR pdata->hi [L521] *(pdata->hi) = 8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 95 locations, 31 error locations. Result: UNKNOWN, OverallTime: 154.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 259 SDtfs, 156 SDslu, 660 SDs, 0 SdLazy, 788 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 15 QuantifiedInterpolants, 9676 SizeOfPredicates, 40 NumberOfNonLiveVariables, 345 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...