./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.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_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 e1d17eba51e74c24a0207e3211285d73103c6440 ........................................................................................................................................ 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_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 e1d17eba51e74c24a0207e3211285d73103c6440 .................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:04:45,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:04:45,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:04:45,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:04:45,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:04:45,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:04:45,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:04:45,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:04:45,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:04:45,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:04:45,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:04:45,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:04:45,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:04:45,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:04:45,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:04:45,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:04:45,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:04:45,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:04:45,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:04:45,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:04:45,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:04:45,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:04:45,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:04:45,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:04:45,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:04:45,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:04:45,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:04:45,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:04:45,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:04:45,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:04:45,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:04:45,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:04:45,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:04:45,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:04:45,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:04:45,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:04:45,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:04:45,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:04:45,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:04:45,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:04:45,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:04:45,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 15:04:45,615 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:04:45,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:04:45,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:04:45,616 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:04:45,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:04:45,616 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:04:45,616 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:04:45,616 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:04:45,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:04:45,617 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:04:45,617 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:04:45,617 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:04:45,617 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:04:45,617 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:04:45,617 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:04:45,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:04:45,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:04:45,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:04:45,618 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:04:45,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:04:45,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:04:45,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:04:45,619 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:04:45,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:04:45,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:04:45,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:04:45,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:04:45,621 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_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 -> e1d17eba51e74c24a0207e3211285d73103c6440 [2019-12-07 15:04:45,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:04:45,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:04:45,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:04:45,731 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:04:45,731 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:04:45,731 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2019-12-07 15:04:45,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/6cb537ac0/de8b3b7122b94c30a42b6e33f5df035d/FLAG9d71b812a [2019-12-07 15:04:46,296 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:04:46,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2019-12-07 15:04:46,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/6cb537ac0/de8b3b7122b94c30a42b6e33f5df035d/FLAG9d71b812a [2019-12-07 15:04:46,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/6cb537ac0/de8b3b7122b94c30a42b6e33f5df035d [2019-12-07 15:04:46,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:04:46,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:04:46,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:04:46,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:04:46,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:04:46,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:04:46" (1/1) ... [2019-12-07 15:04:46,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b35f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:46, skipping insertion in model container [2019-12-07 15:04:46,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:04:46" (1/1) ... [2019-12-07 15:04:46,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:04:46,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:04:47,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:04:47,718 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 15:04:47,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ce140ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:47, skipping insertion in model container [2019-12-07 15:04:47,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:04:47,719 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:04:47,721 INFO L168 Benchmark]: Toolchain (without parser) took 914.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:04:47,721 INFO L168 Benchmark]: CDTParser took 0.14 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 15:04:47,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 912.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:04:47,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 912.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2971]: 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 15:04:48,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:04:48,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:04:48,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:04:48,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:04:48,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:04:48,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:04:48,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:04:48,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:04:48,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:04:48,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:04:48,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:04:48,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:04:48,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:04:48,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:04:48,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:04:48,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:04:48,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:04:48,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:04:48,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:04:48,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:04:48,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:04:48,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:04:48,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:04:48,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:04:48,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:04:48,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:04:48,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:04:48,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:04:48,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:04:48,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:04:48,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:04:48,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:04:48,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:04:48,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:04:48,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:04:48,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:04:48,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:04:48,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:04:48,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:04:48,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:04:48,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 15:04:48,891 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:04:48,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:04:48,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:04:48,892 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:04:48,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:04:48,892 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:04:48,892 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:04:48,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:04:48,893 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:04:48,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:04:48,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:04:48,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:04:48,894 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:04:48,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:04:48,896 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:04:48,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:04:48,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:04:48,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:04:48,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:04:48,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:04:48,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:04:48,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:04:48,897 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:04:48,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:04:48,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:04:48,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:04:48,897 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_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 -> e1d17eba51e74c24a0207e3211285d73103c6440 [2019-12-07 15:04:49,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:04:49,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:04:49,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:04:49,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:04:49,081 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:04:49,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2019-12-07 15:04:49,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/32025bc82/3bbd1f29ab5248d8a23f1f2e65274e48/FLAG336e55c87 [2019-12-07 15:04:49,639 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:04:49,640 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2019-12-07 15:04:49,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/32025bc82/3bbd1f29ab5248d8a23f1f2e65274e48/FLAG336e55c87 [2019-12-07 15:04:49,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/data/32025bc82/3bbd1f29ab5248d8a23f1f2e65274e48 [2019-12-07 15:04:49,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:04:49,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:04:49,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:04:49,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:04:49,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:04:49,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:04:49" (1/1) ... [2019-12-07 15:04:49,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db7b7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:49, skipping insertion in model container [2019-12-07 15:04:49,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:04:49" (1/1) ... [2019-12-07 15:04:49,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:04:49,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:04:50,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:04:50,918 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:04:50,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:04:51,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:04:51,049 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:04:51,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:04:51,442 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:04:51,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51 WrapperNode [2019-12-07 15:04:51,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:04:51,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:04:51,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:04:51,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:04:51,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:04:51,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:04:51,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:04:51,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:04:51,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... [2019-12-07 15:04:51,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:04:51,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:04:51,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:04:51,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:04:51,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 15:04:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:04:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-12-07 15:04:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-12-07 15:04:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2019-12-07 15:04:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:04:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 15:04:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-12-07 15:04:57,254 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:04:57,255 INFO L287 CfgBuilder]: Removed 485 assume(true) statements. [2019-12-07 15:04:57,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:04:57 BoogieIcfgContainer [2019-12-07 15:04:57,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:04:57,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:04:57,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:04:57,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:04:57,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:04:49" (1/3) ... [2019-12-07 15:04:57,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f579a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:04:57, skipping insertion in model container [2019-12-07 15:04:57,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:04:51" (2/3) ... [2019-12-07 15:04:57,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f579a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:04:57, skipping insertion in model container [2019-12-07 15:04:57,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:04:57" (3/3) ... [2019-12-07 15:04:57,261 INFO L109 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb_p.i [2019-12-07 15:04:57,267 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:04:57,272 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 287 error locations. [2019-12-07 15:04:57,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 287 error locations. [2019-12-07 15:04:57,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:04:57,292 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:04:57,292 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:04:57,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:04:57,293 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:04:57,293 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:04:57,293 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:04:57,293 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:04:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-12-07 15:04:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 15:04:57,321 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:04:57,321 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 15:04:57,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr284REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr192REQUIRES_VIOLATION, ULTIMATE.startErr265REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr116REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr257REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr238REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr203REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr138REQUIRES_VIOLATION, ULTIMATE.startErr276REQUIRES_VIOLATION, ULTIMATE.startErr286ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr268REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr146REQUIRES_VIOLATION, ULTIMATE.startErr249REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr111REQUIRES_VIOLATION, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr241REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr222REQUIRES_VIOLATION, ULTIMATE.startErr157REQUIRES_VIOLATION, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr279REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr176REQUIRES_VIOLATION, ULTIMATE.startErr260REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr141REQUIRES_VIOLATION, ULTIMATE.startErr252REQUIRES_VIOLATION, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr233REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr122REQUIRES_VIOLATION, ULTIMATE.startErr187REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr271REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr282REQUIRES_VIOLATION, ULTIMATE.startErr263REQUIRES_VIOLATION, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr152REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr236REQUIRES_VIOLATION, ULTIMATE.startErr198REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr217REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr163REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr182REQUIRES_VIOLATION, ULTIMATE.startErr274REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr117REQUIRES_VIOLATION, ULTIMATE.startErr255REQUIRES_VIOLATION, ULTIMATE.startErr266REQUIRES_VIOLATION, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr247REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr228REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr193REQUIRES_VIOLATION, ULTIMATE.startErr285REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr201REQUIRES_VIOLATION, ULTIMATE.startErr277REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr136REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr258REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr250REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr231REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr147REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr269REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr196REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr261REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr242REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr223REQUIRES_VIOLATION, ULTIMATE.startErr158REQUIRES_VIOLATION, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr280REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr177REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr272REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr142REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr161REQUIRES_VIOLATION, ULTIMATE.startErr253REQUIRES_VIOLATION, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr226REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr188REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr123REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr153REQUIRES_VIOLATION, ULTIMATE.startErr218REQUIRES_VIOLATION, ULTIMATE.startErr283REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr264REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr256REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr237REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr118REQUIRES_VIOLATION, ULTIMATE.startErr183REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr275REQUIRES_VIOLATION, ULTIMATE.startErr202REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr191REQUIRES_VIOLATION, ULTIMATE.startErr267REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr248REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr221REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr137REQUIRES_VIOLATION, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr278REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr259REQUIRES_VIOLATION, ULTIMATE.startErr156REQUIRES_VIOLATION, ULTIMATE.startErr121REQUIRES_VIOLATION, ULTIMATE.startErr251REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr232REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr148REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr270REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr186REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr262REQUIRES_VIOLATION, ULTIMATE.startErr151REQUIRES_VIOLATION, ULTIMATE.startErr243REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr178REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr216REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr197REQUIRES_VIOLATION, ULTIMATE.startErr281REQUIRES_VIOLATION, ULTIMATE.startErr143REQUIRES_VIOLATION, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr162REQUIRES_VIOLATION, ULTIMATE.startErr273REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr254REQUIRES_VIOLATION, ULTIMATE.startErr181REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr246REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION, ULTIMATE.startErr227REQUIRES_VIOLATION]=== [2019-12-07 15:04:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:04:57,326 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2019-12-07 15:04:57,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:04:57,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203724394] [2019-12-07 15:04:57,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/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 15:04:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:04:58,025 INFO L264 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:04:58,030 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:06:15,445 WARN L192 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 3016 DAG size of output: 181 [2019-12-07 15:06:15,447 INFO L343 Elim1Store]: treesize reduction 51933, result has 0.7 percent of original size [2019-12-07 15:06:15,448 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 44 case distinctions, treesize of input 15447387 treesize of output 15185468 [2019-12-07 15:06:15,489 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:06:24,729 WARN L192 SmtUtils]: Spent 9.24 s on a formula simplification. DAG size of input: 486 DAG size of output: 275 [2019-12-07 15:06:24,730 INFO L614 ElimStorePlain]: treesize reduction 14791737, result has 0.0 percent of original size [2019-12-07 15:06:24,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 44 terms [2019-12-07 15:06:24,963 INFO L534 ElimStorePlain]: Start of recursive call 1: 42 dim-0 vars, 1 dim-1 vars, End of recursive call: 42 dim-0 vars, and 1 xjuncts. [2019-12-07 15:06:24,963 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 43 variables, input treesize:267, output treesize:515 [2019-12-07 15:06:24,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 44 terms [2019-12-07 15:06:27,829 WARN L192 SmtUtils]: Spent 2.70 s on a formula simplification that was a NOOP. DAG size: 288 [2019-12-07 15:06:27,842 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 44 terms [2019-12-07 15:06:33,043 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 15:06:33,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203724394] [2019-12-07 15:06:33,044 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2019-12-07 15:06:33,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [102645879] [2019-12-07 15:06:33,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 15:06:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:06:37,204 INFO L264 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:06:37,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:06:37,211 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2019-12-07 15:06:37,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275554438] [2019-12-07 15:06:37,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd6d534-7d4d-43cb-9303-36e656da9db4/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:06:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:06:37,469 INFO L264 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:06:37,470 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:06:37,474 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.IncrementalPlicationChecker@1bad4ea2 [2019-12-07 15:06:37,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:06:37,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 15:06:37,474 ERROR L206 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2019-12-07 15:06:37,475 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:06:38,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,2 mathsat -unsat_core_generation=3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:06:38,098 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 15:06:38,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:06:38 BoogieIcfgContainer [2019-12-07 15:06:38,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:06:38,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:06:38,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:06:38,099 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:06:38,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:04:57" (3/4) ... [2019-12-07 15:06:38,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:06:38,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:06:38,103 INFO L168 Benchmark]: Toolchain (without parser) took 108197.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 281.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 84.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:06:38,103 INFO L168 Benchmark]: CDTParser took 0.17 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 15:06:38,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1534.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 947.0 MB in the beginning and 830.5 MB in the end (delta: 116.6 MB). Peak memory consumption was 238.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:06:38,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.12 ms. Allocated memory is still 1.1 GB. Free memory was 830.5 MB in the beginning and 823.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:06:38,104 INFO L168 Benchmark]: Boogie Preprocessor took 82.89 ms. Allocated memory is still 1.1 GB. Free memory was 823.5 MB in the beginning and 809.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:06:38,105 INFO L168 Benchmark]: RCFGBuilder took 5621.96 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.2 MB). Free memory was 809.5 MB in the beginning and 804.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:06:38,105 INFO L168 Benchmark]: TraceAbstraction took 100841.98 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: -5.2 MB). Free memory was 804.4 MB in the beginning and 1.1 GB in the end (delta: -339.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:06:38,105 INFO L168 Benchmark]: Witness Printer took 3.21 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:06:38,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1534.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 947.0 MB in the beginning and 830.5 MB in the end (delta: 116.6 MB). Peak memory consumption was 238.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.12 ms. Allocated memory is still 1.1 GB. Free memory was 830.5 MB in the beginning and 823.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.89 ms. Allocated memory is still 1.1 GB. Free memory was 823.5 MB in the beginning and 809.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5621.96 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 176.2 MB). Free memory was 809.5 MB in the beginning and 804.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 181.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 100841.98 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: -5.2 MB). Free memory was 804.4 MB in the beginning and 1.1 GB in the end (delta: -339.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.21 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4149]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 1469. Possible FailurePath: [L15] int current_execution_context; [L26] int (* _ddv_module_init)(void); [L27] void (* _ddv_module_exit)(void); [L227] unsigned long jiffies; [L1469] char _ddv_module_author[] = "Fernando Fuganti "; [L1470] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1471] char _ddv_module_license[] = "GPL"; [L1473] static int nowayout = 0; [L1474] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1478-L1482] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1483] static int action = 0; [L1484] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1486] static int zf_action = 0x0800; [L1487] static unsigned long zf_is_open; [L1488] static char zf_expect_close; [L1489] static spinlock_t zf_lock; [L1490] static spinlock_t zf_port_lock; [L1491] static struct timer_list zf_timer; [L1492] static unsigned long next_heartbeat = 0; [L1738-L1745] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1747-L1751] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1758-L1760] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1840] int (* _ddv_tmp_init)(void) = zf_init; [L1841] void (* _ddv_tmp_exit)(void) = zf_exit; [L1892] struct cdev fixed_cdev[1]; [L1893] int fixed_cdev_used = 0; [L1895] short number_cdev_registered = 0; [L1906] struct ddv_cdev cdev_registered[1]; [L2443] short number_genhd_registered = 0; [L2444] short number_fixed_genhd_used = 0; [L2455] struct gendisk fixed_gendisk[10]; [L2456] struct ddv_genhd genhd_registered[10]; [L2592] struct ddv_pci_driver registered_pci_driver; [L2603] struct registered_irq registered_irq[16]; [L2613] short number_tasklet_registered = 0; [L2620] struct ddv_tasklet tasklet_registered[1]; [L2630] short number_timer_registered = 0; [L2636] struct ddv_timer timer_registered[1]; [L2646] struct work_struct *shared_workqueue[10]; [L2656] spinlock_t kernel_lock; [L3342] request_queue_t fixed_request_queue[10]; [L3344] int number_request_queue_used = 0; [L3428] struct proc_dir_entry *proc_root_driver; [L3738] struct ddv_tty_driver global_tty_driver; [L3917] int ddv_ioport_request_start; [L3918] int ddv_ioport_request_len; [L1845] _ddv_module_init = zf_init [L1846] _ddv_module_exit = zf_exit [L2720] int err; [L2722] current_execution_context = 1 [L2660] int i; [L4149] lock->init = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 774 locations, 287 error locations. Result: UNKNOWN, OverallTime: 100.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...