./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf7af2f20e563d03f4a81a8dac054ded849cb34c ........................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf7af2f20e563d03f4a81a8dac054ded849cb34c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:54:00,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:54:00,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:54:00,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:54:00,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:54:00,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:54:00,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:54:00,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:54:00,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:54:00,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:54:00,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:54:00,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:54:00,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:54:00,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:54:00,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:54:00,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:54:00,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:54:00,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:54:00,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:54:00,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:54:00,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:54:00,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:54:00,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:54:00,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:54:00,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:54:00,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:54:00,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:54:00,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:54:00,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:54:00,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:54:00,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:54:00,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:54:00,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:54:00,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:54:00,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:54:00,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:54:00,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:54:00,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:54:00,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:54:00,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:54:00,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:54:00,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 12:54:00,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:54:00,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:54:00,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:54:00,492 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:54:00,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:54:00,493 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:54:00,494 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:54:00,494 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:54:00,494 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:54:00,494 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:54:00,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:54:00,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:54:00,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:54:00,495 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:54:00,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:54:00,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:00,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:54:00,497 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-12-07 12:54:00,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:54:00,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:54:00,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:54:00,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:54:00,609 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:54:00,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 12:54:00,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/cf7767b42/2737133175754b57b9e4627418e5fc9e/FLAGcaaf33249 [2019-12-07 12:54:01,091 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:54:01,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 12:54:01,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/cf7767b42/2737133175754b57b9e4627418e5fc9e/FLAGcaaf33249 [2019-12-07 12:54:01,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/cf7767b42/2737133175754b57b9e4627418e5fc9e [2019-12-07 12:54:01,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:54:01,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:54:01,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:01,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:54:01,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:54:01,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:01" (1/1) ... [2019-12-07 12:54:01,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542f2740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:01, skipping insertion in model container [2019-12-07 12:54:01,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:01" (1/1) ... [2019-12-07 12:54:01,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:54:01,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:54:01,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:01,378 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 12:54:01,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6de70cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:01, skipping insertion in model container [2019-12-07 12:54:01,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:01,379 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:54:01,381 INFO L168 Benchmark]: Toolchain (without parser) took 267.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:01,382 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:01,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:01,384 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:54:02,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:54:02,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:54:02,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:54:02,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:54:02,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:54:02,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:54:02,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:54:02,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:54:02,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:54:02,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:54:02,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:54:02,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:54:02,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:54:02,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:54:02,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:54:02,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:54:02,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:54:02,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:54:02,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:54:02,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:54:02,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:54:02,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:54:02,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:54:02,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:54:02,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:54:02,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:54:02,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:54:02,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:54:02,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:54:02,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:54:02,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:54:02,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:54:02,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:54:02,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:54:02,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:54:02,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:54:02,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:54:02,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:54:02,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:54:02,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:54:02,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 12:54:02,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:54:02,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:54:02,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:54:02,602 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:54:02,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:54:02,602 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:54:02,602 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:54:02,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:54:02,602 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:54:02,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:54:02,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:54:02,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:54:02,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:54:02,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:54:02,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:54:02,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:54:02,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:54:02,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:54:02,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:54:02,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:54:02,607 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_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-12-07 12:54:02,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:54:02,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:54:02,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:54:02,780 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:54:02,780 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:54:02,781 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 12:54:02,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/fccd145c1/fd56afde65264217acc4ffa60c3dc1e1/FLAGa946162e6 [2019-12-07 12:54:03,280 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:54:03,281 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 12:54:03,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/fccd145c1/fd56afde65264217acc4ffa60c3dc1e1/FLAGa946162e6 [2019-12-07 12:54:03,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/data/fccd145c1/fd56afde65264217acc4ffa60c3dc1e1 [2019-12-07 12:54:03,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:54:03,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:54:03,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:03,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:54:03,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:54:03,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e0bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03, skipping insertion in model container [2019-12-07 12:54:03,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:54:03,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:54:03,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:03,870 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:54:03,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:54:03,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:03,899 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:54:03,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:54:03,956 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:54:03,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03 WrapperNode [2019-12-07 12:54:03,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:54:03,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:03,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:54:03,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:54:03,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:54:03,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:54:03,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:54:03,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:54:03,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:03,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:04,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:04,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:04,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... [2019-12-07 12:54:04,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:54:04,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:54:04,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:54:04,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:54:04,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:54:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 12:54:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:54:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:54:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:54:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:54:04,234 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:54:04,234 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 12:54:04,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:04 BoogieIcfgContainer [2019-12-07 12:54:04,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:54:04,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:54:04,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:54:04,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:54:04,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:54:03" (1/3) ... [2019-12-07 12:54:04,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@853150d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:04, skipping insertion in model container [2019-12-07 12:54:04,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:54:03" (2/3) ... [2019-12-07 12:54:04,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@853150d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:54:04, skipping insertion in model container [2019-12-07 12:54:04,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:04" (3/3) ... [2019-12-07 12:54:04,239 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-12-07 12:54:04,246 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:54:04,249 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-12-07 12:54:04,257 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-12-07 12:54:04,270 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:54:04,271 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 12:54:04,271 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:54:04,271 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:54:04,271 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:54:04,271 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:54:04,271 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:54:04,271 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:54:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 12:54:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:54:04,285 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:04,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:04,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:04,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:04,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131947, now seen corresponding path program 1 times [2019-12-07 12:54:04,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:04,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949854750] [2019-12-07 12:54:04,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:04,352 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 12:54:04,356 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:04,394 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 12:54:04,395 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,400 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:04,400 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,401 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 12:54:04,433 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:04,434 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 12:54:04,437 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,454 INFO L614 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-12-07 12:54:04,455 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 12:54:04,455 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-12-07 12:54:04,469 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 12:54:04,469 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:04,484 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 12:54:04,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949854750] [2019-12-07 12:54:04,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:04,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 12:54:04,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943993182] [2019-12-07 12:54:04,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:54:04,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:54:04,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:54:04,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:54:04,500 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2019-12-07 12:54:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:04,619 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-12-07 12:54:04,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:54:04,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 12:54:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:04,626 INFO L225 Difference]: With dead ends: 30 [2019-12-07 12:54:04,626 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 12:54:04,627 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:54:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 12:54:04,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 12:54:04,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 12:54:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2019-12-07 12:54:04,648 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 9 [2019-12-07 12:54:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:04,648 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2019-12-07 12:54:04,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:54:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2019-12-07 12:54:04,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:54:04,649 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:04,649 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:04,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:54:04,851 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:04,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131948, now seen corresponding path program 1 times [2019-12-07 12:54:04,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:04,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602961768] [2019-12-07 12:54:04,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:04,932 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 12:54:04,933 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:04,940 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 12:54:04,940 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,947 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:04,950 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 12:54:04,950 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,956 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:04,956 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:54:04,956 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 12:54:04,990 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:04,990 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 12:54:04,991 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,000 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,004 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 12:54:05,005 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,014 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,014 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 12:54:05,015 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:20 [2019-12-07 12:54:05,040 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 12:54:05,040 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:05,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:54:05,253 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 12:54:05,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602961768] [2019-12-07 12:54:05,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:05,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:54:05,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531213262] [2019-12-07 12:54:05,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:54:05,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:54:05,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:54:05,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:54:05,256 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 8 states. [2019-12-07 12:54:05,584 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 12:54:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:05,603 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-12-07 12:54:05,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:54:05,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 12:54:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:05,605 INFO L225 Difference]: With dead ends: 22 [2019-12-07 12:54:05,605 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 12:54:05,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:54:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 12:54:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 12:54:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 12:54:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2019-12-07 12:54:05,608 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 9 [2019-12-07 12:54:05,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:05,608 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2019-12-07 12:54:05,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:54:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2019-12-07 12:54:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:54:05,609 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:05,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:05,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:54:05,810 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1063541525, now seen corresponding path program 1 times [2019-12-07 12:54:05,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:05,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67394552] [2019-12-07 12:54:05,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:05,848 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 12:54:05,850 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:05,854 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 12:54:05,855 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,859 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,860 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,860 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 12:54:05,888 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 12:54:05,888 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,897 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,901 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 12:54:05,902 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,909 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,910 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 12:54:05,910 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2019-12-07 12:54:05,928 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 17 treesize of output 9 [2019-12-07 12:54:05,929 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,936 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,938 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 12:54:05,939 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:05,944 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:05,944 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 12:54:05,944 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2019-12-07 12:54:05,957 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 12:54:05,957 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:06,200 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 12:54:06,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67394552] [2019-12-07 12:54:06,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:06,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 12:54:06,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882571832] [2019-12-07 12:54:06,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 12:54:06,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:54:06,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 12:54:06,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:54:06,202 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 12 states. [2019-12-07 12:54:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:06,570 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-12-07 12:54:06,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:54:06,571 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2019-12-07 12:54:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:06,571 INFO L225 Difference]: With dead ends: 21 [2019-12-07 12:54:06,571 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 12:54:06,572 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2019-12-07 12:54:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 12:54:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 12:54:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 12:54:06,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-12-07 12:54:06,574 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 12 [2019-12-07 12:54:06,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:06,574 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-12-07 12:54:06,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 12:54:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-12-07 12:54:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:54:06,575 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:06,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:06,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:54:06,777 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:06,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:06,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1063541524, now seen corresponding path program 1 times [2019-12-07 12:54:06,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:06,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592786385] [2019-12-07 12:54:06,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:06,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:54:06,848 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:06,852 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 12:54:06,852 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:06,855 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:06,855 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:54:06,855 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 12:54:06,874 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 12:54:06,874 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:06,879 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:06,880 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 12:54:06,880 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2019-12-07 12:54:06,892 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 19 treesize of output 11 [2019-12-07 12:54:06,892 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:54:06,895 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:54:06,895 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 12:54:06,895 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:5 [2019-12-07 12:54:06,904 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 12:54:06,904 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:06,912 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 12:54:06,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592786385] [2019-12-07 12:54:06,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:06,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-12-07 12:54:06,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091176045] [2019-12-07 12:54:06,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:54:06,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:54:06,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:54:06,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:54:06,913 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 7 states. [2019-12-07 12:54:07,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:07,063 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-12-07 12:54:07,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:54:07,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-12-07 12:54:07,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:07,064 INFO L225 Difference]: With dead ends: 20 [2019-12-07 12:54:07,064 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 12:54:07,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:54:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 12:54:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 12:54:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 12:54:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-12-07 12:54:07,066 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 12 [2019-12-07 12:54:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:07,066 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-12-07 12:54:07,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:54:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-12-07 12:54:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 12:54:07,067 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:07,067 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:07,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:54:07,268 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:07,269 INFO L82 PathProgramCache]: Analyzing trace with hash -254138953, now seen corresponding path program 1 times [2019-12-07 12:54:07,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:07,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111455436] [2019-12-07 12:54:07,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:54:07,369 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:54:07,371 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:54:07,408 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 12:54:07,408 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:54:07,440 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 12:54:07,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111455436] [2019-12-07 12:54:07,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:54:07,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-07 12:54:07,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262026006] [2019-12-07 12:54:07,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 12:54:07,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:54:07,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 12:54:07,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:54:07,441 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 9 states. [2019-12-07 12:54:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:54:07,548 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-07 12:54:07,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:54:07,549 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-12-07 12:54:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:54:07,550 INFO L225 Difference]: With dead ends: 19 [2019-12-07 12:54:07,550 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 12:54:07,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:54:07,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 12:54:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 12:54:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 12:54:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-12-07 12:54:07,552 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2019-12-07 12:54:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:54:07,552 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-12-07 12:54:07,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 12:54:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-12-07 12:54:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:54:07,553 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:54:07,553 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:54:07,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:54:07,755 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2019-12-07 12:54:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:54:07,756 INFO L82 PathProgramCache]: Analyzing trace with hash 585604346, now seen corresponding path program 1 times [2019-12-07 12:54:07,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:54:07,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825988260] [2019-12-07 12:54:07,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af9e2ec-ff78-460e-82ea-8c0c2c696d82/bin/utaipan/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 12:54:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:54:07,940 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:54:07,940 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:54:08,141 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:54:08,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:54:08 BoogieIcfgContainer [2019-12-07 12:54:08,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:54:08,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:54:08,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:54:08,170 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:54:08,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:54:04" (3/4) ... [2019-12-07 12:54:08,173 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:54:08,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:54:08,174 INFO L168 Benchmark]: Toolchain (without parser) took 4558.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -232.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:08,175 INFO L168 Benchmark]: CDTParser took 0.13 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 12:54:08,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:08,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:08,176 INFO L168 Benchmark]: Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:08,176 INFO L168 Benchmark]: RCFGBuilder took 230.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:08,177 INFO L168 Benchmark]: TraceAbstraction took 3933.72 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -111.3 MB). Peak memory consumption was 288.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:54:08,177 INFO L168 Benchmark]: Witness Printer took 3.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:54:08,179 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 338.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 230.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3933.72 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -111.3 MB). Peak memory consumption was 288.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 568]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 568. Possible FailurePath: [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); [L563] COND FALSE !(((void *)0) == temp) [L566] return temp; [L569] struct node* s = alloc_node(); [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); [L563] COND FALSE !(((void *)0) == temp) [L566] return temp; [L570] s->next = alloc_node() [L571] EXPR s->next [L571] *s = *(s->next) [L572] free(s) [L572] free(s) [L572] free(s) [L573] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 12 error locations. Result: UNSAFE, OverallTime: 3.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 227 SDslu, 50 SDs, 0 SdLazy, 235 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 106 ConstructedInterpolants, 7 QuantifiedInterpolants, 8822 SizeOfPredicates, 38 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 45 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...