./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 86b203c3a804c103d90401bd32cfcff28939b920 ........................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 86b203c3a804c103d90401bd32cfcff28939b920 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:36:37,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:36:37,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:36:37,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:36:37,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:36:37,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:36:37,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:36:37,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:36:37,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:36:37,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:36:37,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:36:37,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:36:37,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:36:37,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:36:37,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:36:37,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:36:37,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:36:37,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:36:37,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:36:37,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:36:37,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:36:37,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:36:37,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:36:37,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:36:37,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:36:37,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:36:37,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:36:37,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:36:37,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:36:37,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:36:37,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:36:37,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:36:37,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:36:37,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:36:37,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:36:37,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:36:37,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:36:37,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:36:37,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:36:37,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:36:37,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:36:37,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 16:36:37,507 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:36:37,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:36:37,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:36:37,507 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:36:37,508 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:36:37,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:36:37,509 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:36:37,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:36:37,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:36:37,509 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:36:37,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:36:37,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:36:37,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:36:37,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:36:37,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:36:37,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:36:37,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:36:37,511 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:36:37,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:36:37,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:36:37,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:36:37,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:36:37,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:36:37,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:36:37,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:36:37,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:36:37,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:36:37,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:36:37,513 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_f18feb5b-acd8-4758-bab9-983b26029782/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 -> 86b203c3a804c103d90401bd32cfcff28939b920 [2019-12-07 16:36:37,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:36:37,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:36:37,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:36:37,624 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:36:37,624 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:36:37,625 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 16:36:37,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/44c7491c5/414181c90e144c0f85f747db105a2602/FLAG4ca681323 [2019-12-07 16:36:38,161 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:36:38,162 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 16:36:38,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/44c7491c5/414181c90e144c0f85f747db105a2602/FLAG4ca681323 [2019-12-07 16:36:38,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/44c7491c5/414181c90e144c0f85f747db105a2602 [2019-12-07 16:36:38,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:36:38,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:36:38,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:36:38,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:36:38,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:36:38,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:36:38" (1/1) ... [2019-12-07 16:36:38,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ac8ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:38, skipping insertion in model container [2019-12-07 16:36:38,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:36:38" (1/1) ... [2019-12-07 16:36:38,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:36:38,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:36:38,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:36:38,413 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 16:36:38,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66316a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:38, skipping insertion in model container [2019-12-07 16:36:38,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:36:38,414 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 16:36:38,416 INFO L168 Benchmark]: Toolchain (without parser) took 231.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:38,416 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:36:38,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:38,418 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 18.1 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 16:36:39,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:36:39,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:36:39,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:36:39,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:36:39,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:36:39,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:36:39,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:36:39,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:36:39,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:36:39,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:36:39,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:36:39,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:36:39,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:36:39,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:36:39,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:36:39,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:36:39,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:36:39,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:36:39,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:36:39,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:36:39,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:36:39,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:36:39,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:36:39,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:36:39,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:36:39,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:36:39,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:36:39,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:36:39,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:36:39,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:36:39,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:36:39,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:36:39,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:36:39,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:36:39,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:36:39,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:36:39,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:36:39,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:36:39,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:36:39,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:36:39,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 16:36:39,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:36:39,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:36:39,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:36:39,646 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:36:39,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:36:39,646 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:36:39,646 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:36:39,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:36:39,646 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:36:39,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:36:39,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:36:39,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:36:39,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 16:36:39,648 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:36:39,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:36:39,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:36:39,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:36:39,650 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:36:39,651 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:36:39,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:36:39,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:36:39,651 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_f18feb5b-acd8-4758-bab9-983b26029782/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 -> 86b203c3a804c103d90401bd32cfcff28939b920 [2019-12-07 16:36:39,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:36:39,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:36:39,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:36:39,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:36:39,828 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:36:39,828 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 16:36:39,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/5cda40cc7/b23dc7f18546458fa7d0a7b4f6498dff/FLAGed62ea69e [2019-12-07 16:36:40,336 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:36:40,337 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2019-12-07 16:36:40,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/5cda40cc7/b23dc7f18546458fa7d0a7b4f6498dff/FLAGed62ea69e [2019-12-07 16:36:40,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/data/5cda40cc7/b23dc7f18546458fa7d0a7b4f6498dff [2019-12-07 16:36:40,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:36:40,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:36:40,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:36:40,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:36:40,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:36:40,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7867ea24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40, skipping insertion in model container [2019-12-07 16:36:40,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:36:40,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:36:40,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:36:40,609 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:36:40,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:36:40,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:36:40,634 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:36:40,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:36:40,689 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:36:40,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40 WrapperNode [2019-12-07 16:36:40,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:36:40,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:36:40,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:36:40,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:36:40,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:36:40,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:36:40,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:36:40,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:36:40,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... [2019-12-07 16:36:40,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:36:40,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:36:40,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:36:40,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:36:40,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 16:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 16:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 16:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:36:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:36:40,990 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:36:40,990 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 16:36:40,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:36:40 BoogieIcfgContainer [2019-12-07 16:36:40,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:36:40,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:36:40,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:36:40,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:36:40,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:36:40" (1/3) ... [2019-12-07 16:36:40,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d855a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:36:40, skipping insertion in model container [2019-12-07 16:36:40,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:36:40" (2/3) ... [2019-12-07 16:36:40,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d855a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:36:40, skipping insertion in model container [2019-12-07 16:36:40,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:36:40" (3/3) ... [2019-12-07 16:36:40,996 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2019-12-07 16:36:41,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:36:41,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-12-07 16:36:41,016 INFO L249 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-12-07 16:36:41,033 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:36:41,033 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 16:36:41,033 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:36:41,033 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:36:41,033 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:36:41,033 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:36:41,033 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:36:41,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:36:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-12-07 16:36:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:36:41,049 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:41,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:41,050 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:41,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:41,055 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131947, now seen corresponding path program 1 times [2019-12-07 16:36:41,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:41,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787734121] [2019-12-07 16:36:41,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:41,121 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:36:41,125 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:41,167 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 16:36:41,167 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,174 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,174 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,175 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 16:36:41,213 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,214 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 12 treesize of output 28 [2019-12-07 16:36:41,215 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,233 INFO L614 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-12-07 16:36:41,234 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 16:36:41,234 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2019-12-07 16:36:41,252 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 16:36:41,252 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:41,268 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 16:36:41,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787734121] [2019-12-07 16:36:41,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:41,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 16:36:41,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216059635] [2019-12-07 16:36:41,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:36:41,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:41,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:36:41,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:36:41,285 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 5 states. [2019-12-07 16:36:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:41,403 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-12-07 16:36:41,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:36:41,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 16:36:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:41,410 INFO L225 Difference]: With dead ends: 36 [2019-12-07 16:36:41,410 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 16:36:41,412 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 16:36:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 16:36:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 16:36:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 16:36:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2019-12-07 16:36:41,436 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 9 [2019-12-07 16:36:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:41,436 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2019-12-07 16:36:41,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:36:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2019-12-07 16:36:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:36:41,437 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:41,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:41,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:36:41,639 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:41,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:41,640 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131948, now seen corresponding path program 1 times [2019-12-07 16:36:41,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:41,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510920950] [2019-12-07 16:36:41,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:41,714 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 16:36:41,715 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:41,721 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 16:36:41,722 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,728 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,730 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 16:36:41,731 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,736 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,737 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,737 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 16:36:41,769 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,769 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 16:36:41,770 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,778 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,783 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 16:36:41,784 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:41,795 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:41,796 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 16:36:41,796 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:20 [2019-12-07 16:36:41,822 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 16:36:41,823 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:41,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:36:42,024 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 16:36:42,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510920950] [2019-12-07 16:36:42,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:42,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 16:36:42,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67394552] [2019-12-07 16:36:42,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:36:42,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:42,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:36:42,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:36:42,027 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 8 states. [2019-12-07 16:36:42,338 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 16:36:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:44,717 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2019-12-07 16:36:44,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:36:44,718 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 16:36:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:44,719 INFO L225 Difference]: With dead ends: 27 [2019-12-07 16:36:44,719 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 16:36:44,720 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 16:36:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 16:36:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 16:36:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 16:36:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2019-12-07 16:36:44,723 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 9 [2019-12-07 16:36:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:44,723 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2019-12-07 16:36:44,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:36:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2019-12-07 16:36:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:36:44,724 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:44,724 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:44,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:36:44,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:44,927 INFO L82 PathProgramCache]: Analyzing trace with hash 711566546, now seen corresponding path program 1 times [2019-12-07 16:36:44,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:44,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008983761] [2019-12-07 16:36:44,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:45,001 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:36:45,002 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:45,042 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 16:36:45,042 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:45,075 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 16:36:45,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008983761] [2019-12-07 16:36:45,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:45,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-07 16:36:45,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947460360] [2019-12-07 16:36:45,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 16:36:45,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:45,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 16:36:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:36:45,077 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 9 states. [2019-12-07 16:36:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:45,195 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2019-12-07 16:36:45,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:36:45,196 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-12-07 16:36:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:45,196 INFO L225 Difference]: With dead ends: 26 [2019-12-07 16:36:45,197 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 16:36:45,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 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 16:36:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 16:36:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 16:36:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 16:36:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2019-12-07 16:36:45,200 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 17 [2019-12-07 16:36:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:45,201 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2019-12-07 16:36:45,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 16:36:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2019-12-07 16:36:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 16:36:45,201 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:45,202 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:45,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:36:45,404 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:45,405 INFO L82 PathProgramCache]: Analyzing trace with hash 915652980, now seen corresponding path program 1 times [2019-12-07 16:36:45,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:45,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819851091] [2019-12-07 16:36:45,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:45,498 INFO L264 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 16:36:45,500 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:45,517 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 16:36:45,517 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:45,520 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:45,520 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:45,520 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-12-07 16:36:45,546 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-12-07 16:36:45,546 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:45,548 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:45,549 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:45,549 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:7 [2019-12-07 16:36:45,553 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 16:36:45,553 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:45,554 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:45,555 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 16:36:45,555 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-12-07 16:36:45,571 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 16:36:45,571 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:45,584 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 16:36:45,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819851091] [2019-12-07 16:36:45,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:45,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2019-12-07 16:36:45,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054148699] [2019-12-07 16:36:45,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 16:36:45,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:45,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:36:45,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:36:45,586 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 10 states. [2019-12-07 16:36:45,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:45,769 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-12-07 16:36:45,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 16:36:45,770 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-12-07 16:36:45,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:45,770 INFO L225 Difference]: With dead ends: 25 [2019-12-07 16:36:45,770 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 16:36:45,771 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2019-12-07 16:36:45,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 16:36:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 16:36:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 16:36:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-12-07 16:36:45,774 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 19 [2019-12-07 16:36:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:45,774 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-12-07 16:36:45,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 16:36:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-12-07 16:36:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 16:36:45,775 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:45,775 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:45,975 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:36:45,977 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:45,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1679528615, now seen corresponding path program 1 times [2019-12-07 16:36:45,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:45,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808073761] [2019-12-07 16:36:45,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:46,058 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 16:36:46,060 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:46,137 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 16:36:46,137 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:46,150 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:46,150 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 16:36:46,150 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:15 [2019-12-07 16:36:46,219 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-12-07 16:36:46,219 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:46,228 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:46,229 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 16:36:46,229 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2019-12-07 16:36:46,234 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 16:36:46,235 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:46,243 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:46,243 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 16:36:46,244 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:22, output treesize:11 [2019-12-07 16:36:46,317 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 16:36:46,317 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:46,498 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 16:36:46,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808073761] [2019-12-07 16:36:46,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:46,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 17 [2019-12-07 16:36:46,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849226705] [2019-12-07 16:36:46,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 16:36:46,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:46,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 16:36:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2019-12-07 16:36:46,501 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 18 states. [2019-12-07 16:36:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:47,279 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-12-07 16:36:47,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 16:36:47,281 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 20 [2019-12-07 16:36:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:47,281 INFO L225 Difference]: With dead ends: 24 [2019-12-07 16:36:47,281 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 16:36:47,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2019-12-07 16:36:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 16:36:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-07 16:36:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 16:36:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-12-07 16:36:47,284 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2019-12-07 16:36:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:47,284 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-12-07 16:36:47,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 16:36:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-12-07 16:36:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 16:36:47,284 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:47,284 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:47,485 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 16:36:47,486 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:47,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:47,487 INFO L82 PathProgramCache]: Analyzing trace with hash -525779434, now seen corresponding path program 1 times [2019-12-07 16:36:47,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:47,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316104653] [2019-12-07 16:36:47,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/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 16:36:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:47,580 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 16:36:47,582 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:47,586 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 16:36:47,586 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,588 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:47,588 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,589 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 16:36:47,615 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:47,615 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 17 treesize of output 39 [2019-12-07 16:36:47,616 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,632 INFO L614 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-12-07 16:36:47,632 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,632 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2019-12-07 16:36:47,677 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 16:36:47,677 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,687 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:47,687 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 16:36:47,687 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:27 [2019-12-07 16:36:47,740 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2019-12-07 16:36:47,740 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,749 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:47,749 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,749 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:25 [2019-12-07 16:36:47,769 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 27 treesize of output 15 [2019-12-07 16:36:47,769 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,776 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:47,776 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 16:36:47,777 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:19 [2019-12-07 16:36:47,830 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2019-12-07 16:36:47,831 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:47,842 INFO L614 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-12-07 16:36:47,842 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 16:36:47,842 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:13 [2019-12-07 16:36:47,874 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 16:36:47,874 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:48,054 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 16:36:48,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316104653] [2019-12-07 16:36:48,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:48,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 19 [2019-12-07 16:36:48,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895066631] [2019-12-07 16:36:48,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-12-07 16:36:48,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:36:48,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-12-07 16:36:48,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2019-12-07 16:36:48,056 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 20 states. [2019-12-07 16:36:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:48,554 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-12-07 16:36:48,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 16:36:48,555 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2019-12-07 16:36:48,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:48,555 INFO L225 Difference]: With dead ends: 23 [2019-12-07 16:36:48,555 INFO L226 Difference]: Without dead ends: 23 [2019-12-07 16:36:48,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2019-12-07 16:36:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-07 16:36:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 16:36:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 16:36:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-12-07 16:36:48,557 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 21 [2019-12-07 16:36:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:48,558 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-12-07 16:36:48,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-12-07 16:36:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-12-07 16:36:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:36:48,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:48,558 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:48,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 16:36:48,760 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 16:36:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:48,761 INFO L82 PathProgramCache]: Analyzing trace with hash 880706812, now seen corresponding path program 1 times [2019-12-07 16:36:48,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:36:48,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441113196] [2019-12-07 16:36:48,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 16:36:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:48,885 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2019-12-07 16:36:48,886 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:48,889 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 16:36:48,889 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:48,891 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:48,891 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:48,891 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 16:36:48,979 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 16:36:48,979 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:48,994 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:48,995 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 16:36:48,995 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:44 [2019-12-07 16:36:49,070 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2019-12-07 16:36:49,070 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:49,081 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:49,081 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:36:49,081 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:44 [2019-12-07 16:36:49,085 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2019-12-07 16:36:49,085 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:36:49,094 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:36:49,095 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 16:36:49,095 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:32 [2019-12-07 16:36:49,208 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:36:49,278 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 16:36:49,278 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:49,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:37:06,195 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 16:37:06,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441113196] [2019-12-07 16:37:06,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:37:06,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 24 [2019-12-07 16:37:06,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161003880] [2019-12-07 16:37:06,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-12-07 16:37:06,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:37:06,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-12-07 16:37:06,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=535, Unknown=3, NotChecked=0, Total=600 [2019-12-07 16:37:06,197 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 25 states. [2019-12-07 16:37:07,782 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-12-07 16:37:10,491 WARN L192 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-12-07 16:37:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:37:10,492 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-12-07 16:37:10,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 16:37:10,492 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 22 [2019-12-07 16:37:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:37:10,493 INFO L225 Difference]: With dead ends: 22 [2019-12-07 16:37:10,493 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:37:10,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=194, Invalid=1135, Unknown=3, NotChecked=0, Total=1332 [2019-12-07 16:37:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:37:10,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:37:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:37:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:37:10,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-07 16:37:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:37:10,494 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:37:10,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-12-07 16:37:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:37:10,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:37:10,695 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 16:37:10,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:37:10 BoogieIcfgContainer [2019-12-07 16:37:10,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:37:10,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:37:10,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:37:10,703 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:37:10,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:36:40" (3/4) ... [2019-12-07 16:37:10,705 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:37:10,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 16:37:10,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:37:10,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:37:10,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:37:10,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f18feb5b-acd8-4758-bab9-983b26029782/bin/utaipan/witness.graphml [2019-12-07 16:37:10,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:37:10,746 INFO L168 Benchmark]: Toolchain (without parser) took 30388.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 285.7 MB). Free memory was 948.4 MB in the beginning and 1.3 GB in the end (delta: -303.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:37:10,746 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 16:37:10,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:37:10,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.02 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 16:37:10,747 INFO L168 Benchmark]: Boogie Preprocessor took 18.32 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 16:37:10,747 INFO L168 Benchmark]: RCFGBuilder took 252.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:37:10,748 INFO L168 Benchmark]: TraceAbstraction took 29710.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -169.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:37:10,748 INFO L168 Benchmark]: Witness Printer took 42.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:37:10,750 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 331.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.02 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. * Boogie Preprocessor took 18.32 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 252.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29710.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -169.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 15 error locations. Result: SAFE, OverallTime: 29.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 491 SDslu, 129 SDs, 0 SdLazy, 742 SolverSat, 97 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 137 SyntacticMatches, 4 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 220 ConstructedInterpolants, 35 QuantifiedInterpolants, 50564 SizeOfPredicates, 52 NumberOfNonLiveVariables, 411 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 proved your program to be correct! Received shutdown request...