./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.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_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 ........................................................................................................................................ 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_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:12:41,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:12:41,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:12:41,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:12:41,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:12:41,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:12:41,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:12:41,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:12:41,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:12:41,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:12:41,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:12:41,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:12:41,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:12:41,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:12:41,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:12:41,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:12:41,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:12:41,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:12:41,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:12:41,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:12:41,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:12:41,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:12:41,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:12:41,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:12:41,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:12:41,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:12:41,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:12:41,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:12:41,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:12:41,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:12:41,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:12:41,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:12:41,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:12:41,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:12:41,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:12:41,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:12:41,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:12:41,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:12:41,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:12:41,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:12:41,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:12:41,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 15:12:41,682 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:12:41,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:12:41,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:12:41,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:12:41,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:12:41,684 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:12:41,684 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:12:41,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:12:41,684 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:12:41,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:12:41,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:12:41,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:12:41,685 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:12:41,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:12:41,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:12:41,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:12:41,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:12:41,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:12:41,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:12:41,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:12:41,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:12:41,687 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_8b6bd023-a91c-4930-ad95-df79b8056b17/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 -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2019-12-07 15:12:41,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:12:41,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:12:41,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:12:41,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:12:41,798 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:12:41,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2019-12-07 15:12:41,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/6881e9cc4/46cee7de56a945678589a60165de15ab/FLAG9c833b47a [2019-12-07 15:12:42,296 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:12:42,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2019-12-07 15:12:42,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/6881e9cc4/46cee7de56a945678589a60165de15ab/FLAG9c833b47a [2019-12-07 15:12:42,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/6881e9cc4/46cee7de56a945678589a60165de15ab [2019-12-07 15:12:42,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:12:42,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:12:42,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:42,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:12:42,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:12:42,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:42" (1/1) ... [2019-12-07 15:12:42,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d6586c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:42, skipping insertion in model container [2019-12-07 15:12:42,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:42" (1/1) ... [2019-12-07 15:12:42,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:12:42,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:12:42,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:42,651 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 15:12:42,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6570481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:42, skipping insertion in model container [2019-12-07 15:12:42,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:42,651 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:12:42,653 INFO L168 Benchmark]: Toolchain (without parser) took 332.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:42,653 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:12:42,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:42,655 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 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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 15:12:43,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:12:43,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:12:43,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:12:43,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:12:43,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:12:43,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:12:43,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:12:43,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:12:43,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:12:43,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:12:43,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:12:43,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:12:43,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:12:43,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:12:43,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:12:43,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:12:43,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:12:43,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:12:43,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:12:43,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:12:43,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:12:43,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:12:43,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:12:43,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:12:43,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:12:43,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:12:43,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:12:43,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:12:43,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:12:43,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:12:43,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:12:43,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:12:43,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:12:43,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:12:43,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:12:43,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:12:43,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:12:43,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:12:43,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:12:43,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:12:43,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 15:12:43,840 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:12:43,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:12:43,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:12:43,841 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:12:43,842 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:12:43,842 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:12:43,842 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:12:43,842 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:12:43,842 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:12:43,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:12:43,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:12:43,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:12:43,844 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:12:43,845 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:12:43,846 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:12:43,846 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:12:43,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:12:43,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:12:43,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:12:43,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:12:43,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:12:43,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:12:43,848 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_8b6bd023-a91c-4930-ad95-df79b8056b17/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 -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2019-12-07 15:12:44,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:12:44,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:12:44,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:12:44,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:12:44,030 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:12:44,031 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2019-12-07 15:12:44,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/44aae333b/3fd5e8b574cc4b309f105adf78a3e424/FLAG6c649a350 [2019-12-07 15:12:44,524 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:12:44,524 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2019-12-07 15:12:44,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/44aae333b/3fd5e8b574cc4b309f105adf78a3e424/FLAG6c649a350 [2019-12-07 15:12:45,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/data/44aae333b/3fd5e8b574cc4b309f105adf78a3e424 [2019-12-07 15:12:45,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:12:45,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:12:45,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:45,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:12:45,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:12:45,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484ff3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45, skipping insertion in model container [2019-12-07 15:12:45,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:12:45,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:12:45,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:45,389 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:12:45,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:12:45,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:45,420 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:12:45,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:45,526 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:12:45,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45 WrapperNode [2019-12-07 15:12:45,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:45,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:12:45,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:12:45,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:12:45,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:12:45,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:12:45,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:12:45,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:12:45,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:12:45,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:12:45,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:12:45,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:12:45,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2019-12-07 15:12:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2019-12-07 15:12:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2019-12-07 15:12:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2019-12-07 15:12:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:12:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:12:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:12:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:12:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:12:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:12:45,632 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 15:12:45,917 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:12:45,917 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 15:12:45,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45 BoogieIcfgContainer [2019-12-07 15:12:45,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:12:45,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:12:45,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:12:45,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:12:45,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:12:45" (1/3) ... [2019-12-07 15:12:45,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b903ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:12:45, skipping insertion in model container [2019-12-07 15:12:45,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (2/3) ... [2019-12-07 15:12:45,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b903ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:12:45, skipping insertion in model container [2019-12-07 15:12:45,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45" (3/3) ... [2019-12-07 15:12:45,925 INFO L109 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2019-12-07 15:12:45,931 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:12:45,936 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-12-07 15:12:45,937 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 15:12:45,956 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,956 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,956 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,956 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,956 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,957 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,958 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,959 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,959 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,959 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,959 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,960 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,961 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,961 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,961 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,961 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,961 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,962 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,962 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,975 INFO L249 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2019-12-07 15:12:45,988 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:12:45,989 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:12:45,989 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:12:45,989 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:12:45,989 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:12:45,989 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:12:45,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:12:45,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:12:45,999 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 94 transitions [2019-12-07 15:12:46,000 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 92 places, 94 transitions [2019-12-07 15:12:46,031 INFO L134 PetriNetUnfolder]: 8/97 cut-off events. [2019-12-07 15:12:46,031 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:12:46,036 INFO L76 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 8/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 204 event pairs. 6/81 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-07 15:12:46,039 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 92 places, 94 transitions [2019-12-07 15:12:46,055 INFO L134 PetriNetUnfolder]: 8/97 cut-off events. [2019-12-07 15:12:46,055 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:12:46,056 INFO L76 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 8/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 204 event pairs. 6/81 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-07 15:12:46,059 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2280 [2019-12-07 15:12:46,059 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 15:12:47,274 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-12-07 15:12:48,045 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-12-07 15:12:48,193 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-12-07 15:12:48,522 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-12-07 15:12:48,791 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-12-07 15:12:49,224 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-12-07 15:12:50,241 WARN L192 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2019-12-07 15:12:50,718 WARN L192 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-12-07 15:12:50,728 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6474 [2019-12-07 15:12:50,728 INFO L214 etLargeBlockEncoding]: Total number of compositions: 66 [2019-12-07 15:12:50,731 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 47 transitions [2019-12-07 15:12:50,792 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1351 states. [2019-12-07 15:12:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states. [2019-12-07 15:12:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2019-12-07 15:12:50,797 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:50,798 INFO L410 BasicCegarLoop]: trace histogram [1] [2019-12-07 15:12:50,798 INFO L410 AbstractCegarLoop]: === Iteration 1 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:50,802 INFO L82 PathProgramCache]: Analyzing trace with hash 361, now seen corresponding path program 1 times [2019-12-07 15:12:50,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:50,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513934390] [2019-12-07 15:12:50,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:50,848 INFO L264 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:12:50,852 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:50,855 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 15:12:50,856 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:50,856 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 15:12:50,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513934390] [2019-12-07 15:12:50,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:50,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2019-12-07 15:12:50,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18166404] [2019-12-07 15:12:50,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:12:50,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:50,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:12:50,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:12:50,876 INFO L87 Difference]: Start difference. First operand 1351 states. Second operand 2 states. [2019-12-07 15:12:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:50,922 INFO L93 Difference]: Finished difference Result 1349 states and 4065 transitions. [2019-12-07 15:12:50,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:12:50,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2019-12-07 15:12:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:50,947 INFO L225 Difference]: With dead ends: 1349 [2019-12-07 15:12:50,947 INFO L226 Difference]: Without dead ends: 1339 [2019-12-07 15:12:50,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:12:50,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2019-12-07 15:12:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1337. [2019-12-07 15:12:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-12-07 15:12:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 4036 transitions. [2019-12-07 15:12:51,040 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 4036 transitions. Word has length 1 [2019-12-07 15:12:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:51,040 INFO L462 AbstractCegarLoop]: Abstraction has 1337 states and 4036 transitions. [2019-12-07 15:12:51,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:12:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 4036 transitions. [2019-12-07 15:12:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-07 15:12:51,040 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:51,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-12-07 15:12:51,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:12:51,242 INFO L410 AbstractCegarLoop]: === Iteration 2 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash 11296, now seen corresponding path program 1 times [2019-12-07 15:12:51,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:51,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050242770] [2019-12-07 15:12:51,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:51,274 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:12:51,275 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:51,318 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 15:12:51,318 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:12:51,323 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:12:51,324 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:12:51,324 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 15:12:51,331 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 15:12:51,331 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:51,336 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 15:12:51,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050242770] [2019-12-07 15:12:51,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:51,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2019-12-07 15:12:51,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044522281] [2019-12-07 15:12:51,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:51,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:51,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:51,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:51,338 INFO L87 Difference]: Start difference. First operand 1337 states and 4036 transitions. Second operand 4 states. [2019-12-07 15:12:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:51,439 INFO L93 Difference]: Finished difference Result 1338 states and 4036 transitions. [2019-12-07 15:12:51,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:12:51,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2 [2019-12-07 15:12:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:51,448 INFO L225 Difference]: With dead ends: 1338 [2019-12-07 15:12:51,448 INFO L226 Difference]: Without dead ends: 1337 [2019-12-07 15:12:51,449 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-12-07 15:12:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-12-07 15:12:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-12-07 15:12:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 4035 transitions. [2019-12-07 15:12:51,481 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 4035 transitions. Word has length 2 [2019-12-07 15:12:51,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:51,482 INFO L462 AbstractCegarLoop]: Abstraction has 1337 states and 4035 transitions. [2019-12-07 15:12:51,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 4035 transitions. [2019-12-07 15:12:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 15:12:51,482 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:51,482 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 15:12:51,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:12:51,683 INFO L410 AbstractCegarLoop]: === Iteration 3 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:51,683 INFO L82 PathProgramCache]: Analyzing trace with hash 357243, now seen corresponding path program 1 times [2019-12-07 15:12:51,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:51,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939458353] [2019-12-07 15:12:51,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:51,721 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:12:51,722 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:51,793 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-12-07 15:12:51,794 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 2 case distinctions, treesize of input 12 treesize of output 33 [2019-12-07 15:12:51,794 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:12:51,826 INFO L614 ElimStorePlain]: treesize reduction 10, result has 72.2 percent of original size [2019-12-07 15:12:51,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 15:12:51,829 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:12:51,830 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:16, output treesize:14 [2019-12-07 15:12:51,845 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 15:12:51,845 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:51,862 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 15:12:51,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939458353] [2019-12-07 15:12:51,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:51,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2019-12-07 15:12:51,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321923791] [2019-12-07 15:12:51,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:51,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:51,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:51,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:51,863 INFO L87 Difference]: Start difference. First operand 1337 states and 4035 transitions. Second operand 4 states. [2019-12-07 15:12:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:51,951 INFO L93 Difference]: Finished difference Result 1325 states and 4010 transitions. [2019-12-07 15:12:51,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:51,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-12-07 15:12:51,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:51,960 INFO L225 Difference]: With dead ends: 1325 [2019-12-07 15:12:51,960 INFO L226 Difference]: Without dead ends: 1325 [2019-12-07 15:12:51,961 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2019-12-07 15:12:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2019-12-07 15:12:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2019-12-07 15:12:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 4010 transitions. [2019-12-07 15:12:51,989 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 4010 transitions. Word has length 3 [2019-12-07 15:12:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:51,990 INFO L462 AbstractCegarLoop]: Abstraction has 1325 states and 4010 transitions. [2019-12-07 15:12:51,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 4010 transitions. [2019-12-07 15:12:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 15:12:51,990 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:51,990 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 15:12:52,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:12:52,192 INFO L410 AbstractCegarLoop]: === Iteration 4 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:52,193 INFO L82 PathProgramCache]: Analyzing trace with hash 357245, now seen corresponding path program 1 times [2019-12-07 15:12:52,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:52,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047108051] [2019-12-07 15:12:52,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:52,300 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:12:52,301 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:52,333 INFO L343 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2019-12-07 15:12:52,333 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 2 case distinctions, treesize of input 12 treesize of output 16 [2019-12-07 15:12:52,333 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:12:52,341 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:12:52,342 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:12:52,343 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:12, output treesize:16 [2019-12-07 15:12:52,355 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 15:12:52,356 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:52,356 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 15:12:52,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047108051] [2019-12-07 15:12:52,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:52,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2019-12-07 15:12:52,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181554320] [2019-12-07 15:12:52,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:12:52,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:52,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:12:52,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:12:52,358 INFO L87 Difference]: Start difference. First operand 1325 states and 4010 transitions. Second operand 3 states. [2019-12-07 15:12:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:52,424 INFO L93 Difference]: Finished difference Result 1313 states and 3985 transitions. [2019-12-07 15:12:52,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:52,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 15:12:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:52,434 INFO L225 Difference]: With dead ends: 1313 [2019-12-07 15:12:52,434 INFO L226 Difference]: Without dead ends: 1313 [2019-12-07 15:12:52,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:12:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2019-12-07 15:12:52,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2019-12-07 15:12:52,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2019-12-07 15:12:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3985 transitions. [2019-12-07 15:12:52,478 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3985 transitions. Word has length 3 [2019-12-07 15:12:52,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:52,478 INFO L462 AbstractCegarLoop]: Abstraction has 1313 states and 3985 transitions. [2019-12-07 15:12:52,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:12:52,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3985 transitions. [2019-12-07 15:12:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 15:12:52,478 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:52,478 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 15:12:52,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:12:52,680 INFO L410 AbstractCegarLoop]: === Iteration 5 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:52,681 INFO L82 PathProgramCache]: Analyzing trace with hash 343319972, now seen corresponding path program 1 times [2019-12-07 15:12:52,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:52,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677925319] [2019-12-07 15:12:52,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:52,794 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:12:52,794 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:52,826 INFO L343 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2019-12-07 15:12:52,827 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 3 case distinctions, treesize of input 22 treesize of output 23 [2019-12-07 15:12:52,827 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:12:52,836 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:12:52,837 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:12:52,837 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:20 [2019-12-07 15:12:52,870 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 15:12:52,870 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:52,876 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 15:12:52,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677925319] [2019-12-07 15:12:52,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:52,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2019-12-07 15:12:52,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552110538] [2019-12-07 15:12:52,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:52,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:52,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:52,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:52,877 INFO L87 Difference]: Start difference. First operand 1313 states and 3985 transitions. Second operand 4 states. [2019-12-07 15:12:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:52,933 INFO L93 Difference]: Finished difference Result 1169 states and 3529 transitions. [2019-12-07 15:12:52,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:52,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 15:12:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:52,940 INFO L225 Difference]: With dead ends: 1169 [2019-12-07 15:12:52,940 INFO L226 Difference]: Without dead ends: 1169 [2019-12-07 15:12:52,940 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:52,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-12-07 15:12:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2019-12-07 15:12:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2019-12-07 15:12:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 3529 transitions. [2019-12-07 15:12:52,961 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 3529 transitions. Word has length 5 [2019-12-07 15:12:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:52,961 INFO L462 AbstractCegarLoop]: Abstraction has 1169 states and 3529 transitions. [2019-12-07 15:12:52,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:52,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 3529 transitions. [2019-12-07 15:12:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 15:12:52,962 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:52,962 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 15:12:53,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:12:53,164 INFO L410 AbstractCegarLoop]: === Iteration 6 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:53,164 INFO L82 PathProgramCache]: Analyzing trace with hash 343319956, now seen corresponding path program 1 times [2019-12-07 15:12:53,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:53,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019632897] [2019-12-07 15:12:53,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:53,257 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:12:53,257 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:53,261 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 15:12:53,261 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:53,261 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 15:12:53,261 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019632897] [2019-12-07 15:12:53,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:53,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2019-12-07 15:12:53,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173719747] [2019-12-07 15:12:53,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:12:53,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:12:53,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:12:53,262 INFO L87 Difference]: Start difference. First operand 1169 states and 3529 transitions. Second operand 3 states. [2019-12-07 15:12:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:53,270 INFO L93 Difference]: Finished difference Result 1025 states and 3073 transitions. [2019-12-07 15:12:53,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:53,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 15:12:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:53,276 INFO L225 Difference]: With dead ends: 1025 [2019-12-07 15:12:53,276 INFO L226 Difference]: Without dead ends: 1025 [2019-12-07 15:12:53,276 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:12:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2019-12-07 15:12:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2019-12-07 15:12:53,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2019-12-07 15:12:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 3073 transitions. [2019-12-07 15:12:53,298 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 3073 transitions. Word has length 5 [2019-12-07 15:12:53,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:53,298 INFO L462 AbstractCegarLoop]: Abstraction has 1025 states and 3073 transitions. [2019-12-07 15:12:53,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:12:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 3073 transitions. [2019-12-07 15:12:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 15:12:53,299 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:53,299 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 15:12:53,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 15:12:53,500 INFO L410 AbstractCegarLoop]: === Iteration 7 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:53,501 INFO L82 PathProgramCache]: Analyzing trace with hash 343319974, now seen corresponding path program 1 times [2019-12-07 15:12:53,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:53,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593037939] [2019-12-07 15:12:53,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/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 15:12:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:53,587 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:12:53,588 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:53,596 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 15:12:53,596 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:53,600 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 15:12:53,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593037939] [2019-12-07 15:12:53,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:53,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2019-12-07 15:12:53,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325839668] [2019-12-07 15:12:53,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:53,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:53,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:53,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:53,601 INFO L87 Difference]: Start difference. First operand 1025 states and 3073 transitions. Second operand 4 states. [2019-12-07 15:12:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:53,608 INFO L93 Difference]: Finished difference Result 881 states and 2617 transitions. [2019-12-07 15:12:53,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:53,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 15:12:53,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:53,613 INFO L225 Difference]: With dead ends: 881 [2019-12-07 15:12:53,613 INFO L226 Difference]: Without dead ends: 881 [2019-12-07 15:12:53,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-12-07 15:12:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2019-12-07 15:12:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2019-12-07 15:12:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2617 transitions. [2019-12-07 15:12:53,630 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2617 transitions. Word has length 5 [2019-12-07 15:12:53,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:53,630 INFO L462 AbstractCegarLoop]: Abstraction has 881 states and 2617 transitions. [2019-12-07 15:12:53,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2617 transitions. [2019-12-07 15:12:53,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:12:53,631 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:53,631 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:53,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 15:12:53,832 INFO L410 AbstractCegarLoop]: === Iteration 8 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:53,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1528962568, now seen corresponding path program 1 times [2019-12-07 15:12:53,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:53,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469175789] [2019-12-07 15:12:53,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 15:12:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:53,948 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:12:53,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:54,035 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 15:12:54,036 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:56,129 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 15:12:56,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469175789] [2019-12-07 15:12:56,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:56,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-07 15:12:56,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012101801] [2019-12-07 15:12:56,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:12:56,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:56,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:12:56,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2019-12-07 15:12:56,131 INFO L87 Difference]: Start difference. First operand 881 states and 2617 transitions. Second operand 10 states. [2019-12-07 15:12:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:56,791 INFO L93 Difference]: Finished difference Result 737 states and 2161 transitions. [2019-12-07 15:12:56,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:12:56,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2019-12-07 15:12:56,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:56,796 INFO L225 Difference]: With dead ends: 737 [2019-12-07 15:12:56,796 INFO L226 Difference]: Without dead ends: 701 [2019-12-07 15:12:56,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2019-12-07 15:12:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-12-07 15:12:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2019-12-07 15:12:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2019-12-07 15:12:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 2062 transitions. [2019-12-07 15:12:56,809 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 2062 transitions. Word has length 8 [2019-12-07 15:12:56,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:56,809 INFO L462 AbstractCegarLoop]: Abstraction has 701 states and 2062 transitions. [2019-12-07 15:12:56,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:12:56,810 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 2062 transitions. [2019-12-07 15:12:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:12:56,811 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:56,811 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:57,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 15:12:57,013 INFO L410 AbstractCegarLoop]: === Iteration 9 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:57,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:57,013 INFO L82 PathProgramCache]: Analyzing trace with hash -356563122, now seen corresponding path program 1 times [2019-12-07 15:12:57,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:57,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541873168] [2019-12-07 15:12:57,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 15:12:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:57,101 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:12:57,102 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:12:57,130 INFO L343 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2019-12-07 15:12:57,130 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 3 case distinctions, treesize of input 22 treesize of output 23 [2019-12-07 15:12:57,131 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:12:57,140 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:12:57,140 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:12:57,140 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:20 [2019-12-07 15:12:57,211 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 15:12:57,211 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:12:57,261 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 15:12:57,261 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541873168] [2019-12-07 15:12:57,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:57,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-12-07 15:12:57,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879439675] [2019-12-07 15:12:57,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:12:57,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:12:57,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:12:57,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:12:57,262 INFO L87 Difference]: Start difference. First operand 701 states and 2062 transitions. Second operand 10 states. [2019-12-07 15:12:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:57,766 INFO L93 Difference]: Finished difference Result 1035 states and 3010 transitions. [2019-12-07 15:12:57,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:12:57,767 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2019-12-07 15:12:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:57,772 INFO L225 Difference]: With dead ends: 1035 [2019-12-07 15:12:57,772 INFO L226 Difference]: Without dead ends: 1035 [2019-12-07 15:12:57,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:12:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2019-12-07 15:12:57,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 879. [2019-12-07 15:12:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2019-12-07 15:12:57,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 2649 transitions. [2019-12-07 15:12:57,787 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 2649 transitions. Word has length 9 [2019-12-07 15:12:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:57,788 INFO L462 AbstractCegarLoop]: Abstraction has 879 states and 2649 transitions. [2019-12-07 15:12:57,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:12:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 2649 transitions. [2019-12-07 15:12:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:12:57,788 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:57,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:57,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 15:12:57,990 INFO L410 AbstractCegarLoop]: === Iteration 10 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-12-07 15:12:57,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:57,990 INFO L82 PathProgramCache]: Analyzing trace with hash -356563121, now seen corresponding path program 1 times [2019-12-07 15:12:57,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:12:57,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393467694] [2019-12-07 15:12:57,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 15:12:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:12:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:12:58,149 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:12:58,149 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:12:58,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 15:12:58,353 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [332] [332] ULTIMATE.startENTRY-->L1075-1: Formula: (let ((.cse0 (store |v_ULTIMATE.start_main_old_#valid_14| |v_ULTIMATE.start_main_#t~malloc5.base_22| (_ bv1 1)))) (let ((.cse1 (store .cse0 |v_ULTIMATE.start_main_~#id1~0.base_50| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_main_~#id1~0.base_50|)) (= (select .cse1 |v_ULTIMATE.start_main_~#id2~0.base_44|) (_ bv0 1)) (= (_ bv0 32) v_~z~0_35) (= (_ bv0 32) v_~x~0_30) (= |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv0 32)) (= (select |v_ULTIMATE.start_main_old_#valid_14| |v_ULTIMATE.start_main_#t~malloc5.base_22|) (_ bv0 1)) (= |v_ULTIMATE.start_main_#in~argc_15| |v_ULTIMATE.start_#in~argc_8|) (= |v_#memory_int_69| (store |v_#memory_int_70| |v_ULTIMATE.start_main_~#id1~0.base_50| (store (store (store (store (select |v_#memory_int_70| |v_ULTIMATE.start_main_~#id1~0.base_50|) |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv1 32)) (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv2 32)) (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv3 32)) (_ bv0 8)))) (bvult |v_ULTIMATE.start_main_#t~malloc5.base_22| |v_#StackHeapBarrier_35|) (= v_ULTIMATE.start_main_~a~2.base_44 |v_ULTIMATE.start_main_#t~malloc5.base_22|) (bvult |v_#StackHeapBarrier_35| |v_ULTIMATE.start_main_~#id2~0.base_44|) (= (_ bv1 32) v_~i~0_13) (= (_ bv0 32) v_~y~0_56) (= |v_ULTIMATE.start_main_old_#valid_14| (store |v_#valid_150| (_ bv0 32) (_ bv0 1))) (not (bvsgt v_~size~0_55 (_ bv20 32))) (= |v_#length_75| (store (store (store |v_#length_76| |v_ULTIMATE.start_main_#t~malloc5.base_22| v_~size~0_55) |v_ULTIMATE.start_main_~#id1~0.base_50| (_ bv4 32)) |v_ULTIMATE.start_main_~#id2~0.base_44| (_ bv4 32))) (= |v_ULTIMATE.start_main_~#id2~0.offset_32| (_ bv0 32)) (= (_ bv0 32) |v_#NULL.offset_8|) (bvult |v_#StackHeapBarrier_35| |v_ULTIMATE.start_main_~#id1~0.base_50|) (not (bvslt v_~size~0_55 (_ bv1 32))) (not (= (_ bv0 32) |v_ULTIMATE.start_main_#t~malloc5.base_22|)) (= |v_ULTIMATE.start_main_#t~malloc5.offset_22| v_ULTIMATE.start_main_~a~2.offset_38) (= (_ bv0 32) v_~ind~0_163) (= |v_ULTIMATE.start_main_#in~argv.base_15| |v_ULTIMATE.start_#in~argv.base_8|) (= (store .cse1 |v_ULTIMATE.start_main_~#id2~0.base_44| (_ bv1 1)) |v_#valid_148|) (= |v_ULTIMATE.start_main_#in~argc_15| v_ULTIMATE.start_main_~argc_14) (= (_ bv2 32) v_~j~0_35) (= v_ULTIMATE.start_main_~argv.offset_15 |v_ULTIMATE.start_main_#in~argv.offset_15|) (= |v_#NULL.base_8| (_ bv0 32)) (= |v_ULTIMATE.start_main_#t~malloc5.offset_22| (_ bv0 32)) (= |v_ULTIMATE.start_main_#in~argv.base_15| v_ULTIMATE.start_main_~argv.base_15) (= v_currentRoundingMode_10 ~roundNearestTiesToEven) (= |v_ULTIMATE.start_main_#in~argv.offset_15| |v_ULTIMATE.start_#in~argv.offset_8|)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_35|, #valid=|v_#valid_150|, #memory_int=|v_#memory_int_70|, #length=|v_#length_76|, ULTIMATE.start_#in~argc=|v_ULTIMATE.start_#in~argc_8|, ULTIMATE.start_#in~argv.offset=|v_ULTIMATE.start_#in~argv.offset_8|, ULTIMATE.start_#in~argv.base=|v_ULTIMATE.start_#in~argv.base_8|} OutVars{ULTIMATE.start_main_~argv.offset=v_ULTIMATE.start_main_~argv.offset_15, ~j~0=v_~j~0_35, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_26|, ULTIMATE.start_main_~#id1~0.base=|v_ULTIMATE.start_main_~#id1~0.base_50|, #NULL.offset=|v_#NULL.offset_8|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_16|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_23|, ULTIMATE.start_#in~argv.offset=|v_ULTIMATE.start_#in~argv.offset_8|, ULTIMATE.start_main_~argv.base=v_ULTIMATE.start_main_~argv.base_15, ULTIMATE.start_main_~#id2~0.base=|v_ULTIMATE.start_main_~#id2~0.base_44|, ULTIMATE.start_main_~a~2.base=v_ULTIMATE.start_main_~a~2.base_44, ULTIMATE.start_main_~#id2~0.offset=|v_ULTIMATE.start_main_~#id2~0.offset_32|, ULTIMATE.start_main_~argc=v_ULTIMATE.start_main_~argc_14, #length=|v_#length_75|, ULTIMATE.start_#in~argc=|v_ULTIMATE.start_#in~argc_8|, ~y~0=v_~y~0_56, ULTIMATE.start_#in~argv.base=|v_ULTIMATE.start_#in~argv.base_8|, ULTIMATE.start_main_~a~2.offset=v_ULTIMATE.start_main_~a~2.offset_38, ULTIMATE.start_main_#in~argv.base=|v_ULTIMATE.start_main_#in~argv.base_15|, ULTIMATE.start_main_#in~argv.offset=|v_ULTIMATE.start_main_#in~argv.offset_15|, ~size~0=v_~size~0_55, ~i~0=v_~i~0_13, ULTIMATE.start_main_#t~malloc5.base=|v_ULTIMATE.start_main_#t~malloc5.base_22|, ULTIMATE.start_main_old_#valid=|v_ULTIMATE.start_main_old_#valid_14|, #NULL.base=|v_#NULL.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_35|, ~ind~0=v_~ind~0_163, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_29|, #valid=|v_#valid_148|, ULTIMATE.start_main_#in~argc=|v_ULTIMATE.start_main_#in~argc_15|, #memory_int=|v_#memory_int_69|, ~z~0=v_~z~0_35, ULTIMATE.start_main_~#id1~0.offset=|v_ULTIMATE.start_main_~#id1~0.offset_39|, ~x~0=v_~x~0_30, ULTIMATE.start_main_#t~malloc5.offset=|v_ULTIMATE.start_main_#t~malloc5.offset_22|, currentRoundingMode=v_currentRoundingMode_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ~j~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#id1~0.base, #NULL.offset, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~argv.base, ULTIMATE.start_main_~#id2~0.base, ULTIMATE.start_main_~a~2.base, ULTIMATE.start_main_~#id2~0.offset, ULTIMATE.start_main_~argc, #length, ~y~0, ULTIMATE.start_main_~a~2.offset, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ~size~0, ~i~0, ULTIMATE.start_main_#t~malloc5.base, ULTIMATE.start_main_old_#valid, #NULL.base, ~ind~0, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~z~0, ULTIMATE.start_main_~#id1~0.offset, ~x~0, ULTIMATE.start_main_#t~malloc5.offset, currentRoundingMode] because there is no mapped edge [2019-12-07 15:12:58,354 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [297] [297] t1ENTRY-->L1043: Formula: (and (= v_t1Thread1of1ForFork0_~arg.offset_4 |v_t1Thread1of1ForFork0_#in~arg.offset_4|) (= v_t1Thread1of1ForFork0_~arg.base_4 |v_t1Thread1of1ForFork0_#in~arg.base_4|) (= v_~x~0_6 (_ bv1 32))) InVars {t1Thread1of1ForFork0_#in~arg.base=|v_t1Thread1of1ForFork0_#in~arg.base_4|, t1Thread1of1ForFork0_#in~arg.offset=|v_t1Thread1of1ForFork0_#in~arg.offset_4|} OutVars{t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_4, t1Thread1of1ForFork0_#in~arg.base=|v_t1Thread1of1ForFork0_#in~arg.base_4|, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_4, ~x~0=v_~x~0_6, t1Thread1of1ForFork0_#in~arg.offset=|v_t1Thread1of1ForFork0_#in~arg.offset_4|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_~arg.base, t1Thread1of1ForFork0_~arg.offset, ~x~0] because there is no mapped edge [2019-12-07 15:12:58,354 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [289] [289] L1043-->L1045-2: Formula: (and (= (_ bv1 32) v_~y~0_16) (= v_t1Thread1of1ForFork0_~arg.offset_3 v_t1Thread1of1ForFork0_~a~0.offset_4) (= v_t1Thread1of1ForFork0_~arg.base_3 v_t1Thread1of1ForFork0_~a~0.base_5)) InVars {t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_3, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_3} OutVars{t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_3, t1Thread1of1ForFork0_~a~0.offset=v_t1Thread1of1ForFork0_~a~0.offset_4, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_3, t1Thread1of1ForFork0_~a~0.base=v_t1Thread1of1ForFork0_~a~0.base_5, ~y~0=v_~y~0_16} AuxVars[] AssignedVars[t1Thread1of1ForFork0_~a~0.offset, t1Thread1of1ForFork0_~a~0.base, ~y~0] because there is no mapped edge [2019-12-07 15:12:58,354 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [301] [301] L1045-2-->L1049-1: Formula: (or (not (= (_ bv1 32) ~y~0_In-452519334)) (= (_ bv0 32) ~z~0_In-452519334)) InVars {~z~0=~z~0_In-452519334, ~y~0=~y~0_In-452519334} OutVars{~z~0=~z~0_In-452519334, ~y~0=~y~0_In-452519334} AuxVars[] AssignedVars[] because there is no mapped edge [2019-12-07 15:12:58,355 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [286] [286] L1048-1-->L1049: Formula: (= v_~ind~0_41 (bvadd v_~ind~0_42 (_ bv1 32))) InVars {~ind~0=v_~ind~0_42} OutVars{~ind~0=v_~ind~0_41, t1Thread1of1ForFork0_#t~pre2=|v_t1Thread1of1ForFork0_#t~pre2_5|} AuxVars[] AssignedVars[~ind~0, t1Thread1of1ForFork0_#t~pre2] because there is no mapped edge [2019-12-07 15:12:58,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:12:58 BasicIcfg [2019-12-07 15:12:58,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:12:58,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:12:58,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:12:58,369 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:12:58,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45" (3/4) ... [2019-12-07 15:12:58,371 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:12:58,371 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [332] [332] ULTIMATE.startENTRY-->L1075-1: Formula: (let ((.cse0 (store |v_ULTIMATE.start_main_old_#valid_14| |v_ULTIMATE.start_main_#t~malloc5.base_22| (_ bv1 1)))) (let ((.cse1 (store .cse0 |v_ULTIMATE.start_main_~#id1~0.base_50| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_main_~#id1~0.base_50|)) (= (select .cse1 |v_ULTIMATE.start_main_~#id2~0.base_44|) (_ bv0 1)) (= (_ bv0 32) v_~z~0_35) (= (_ bv0 32) v_~x~0_30) (= |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv0 32)) (= (select |v_ULTIMATE.start_main_old_#valid_14| |v_ULTIMATE.start_main_#t~malloc5.base_22|) (_ bv0 1)) (= |v_ULTIMATE.start_main_#in~argc_15| |v_ULTIMATE.start_#in~argc_8|) (= |v_#memory_int_69| (store |v_#memory_int_70| |v_ULTIMATE.start_main_~#id1~0.base_50| (store (store (store (store (select |v_#memory_int_70| |v_ULTIMATE.start_main_~#id1~0.base_50|) |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv1 32)) (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv2 32)) (_ bv0 8)) (bvadd |v_ULTIMATE.start_main_~#id1~0.offset_39| (_ bv3 32)) (_ bv0 8)))) (bvult |v_ULTIMATE.start_main_#t~malloc5.base_22| |v_#StackHeapBarrier_35|) (= v_ULTIMATE.start_main_~a~2.base_44 |v_ULTIMATE.start_main_#t~malloc5.base_22|) (bvult |v_#StackHeapBarrier_35| |v_ULTIMATE.start_main_~#id2~0.base_44|) (= (_ bv1 32) v_~i~0_13) (= (_ bv0 32) v_~y~0_56) (= |v_ULTIMATE.start_main_old_#valid_14| (store |v_#valid_150| (_ bv0 32) (_ bv0 1))) (not (bvsgt v_~size~0_55 (_ bv20 32))) (= |v_#length_75| (store (store (store |v_#length_76| |v_ULTIMATE.start_main_#t~malloc5.base_22| v_~size~0_55) |v_ULTIMATE.start_main_~#id1~0.base_50| (_ bv4 32)) |v_ULTIMATE.start_main_~#id2~0.base_44| (_ bv4 32))) (= |v_ULTIMATE.start_main_~#id2~0.offset_32| (_ bv0 32)) (= (_ bv0 32) |v_#NULL.offset_8|) (bvult |v_#StackHeapBarrier_35| |v_ULTIMATE.start_main_~#id1~0.base_50|) (not (bvslt v_~size~0_55 (_ bv1 32))) (not (= (_ bv0 32) |v_ULTIMATE.start_main_#t~malloc5.base_22|)) (= |v_ULTIMATE.start_main_#t~malloc5.offset_22| v_ULTIMATE.start_main_~a~2.offset_38) (= (_ bv0 32) v_~ind~0_163) (= |v_ULTIMATE.start_main_#in~argv.base_15| |v_ULTIMATE.start_#in~argv.base_8|) (= (store .cse1 |v_ULTIMATE.start_main_~#id2~0.base_44| (_ bv1 1)) |v_#valid_148|) (= |v_ULTIMATE.start_main_#in~argc_15| v_ULTIMATE.start_main_~argc_14) (= (_ bv2 32) v_~j~0_35) (= v_ULTIMATE.start_main_~argv.offset_15 |v_ULTIMATE.start_main_#in~argv.offset_15|) (= |v_#NULL.base_8| (_ bv0 32)) (= |v_ULTIMATE.start_main_#t~malloc5.offset_22| (_ bv0 32)) (= |v_ULTIMATE.start_main_#in~argv.base_15| v_ULTIMATE.start_main_~argv.base_15) (= v_currentRoundingMode_10 ~roundNearestTiesToEven) (= |v_ULTIMATE.start_main_#in~argv.offset_15| |v_ULTIMATE.start_#in~argv.offset_8|)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_35|, #valid=|v_#valid_150|, #memory_int=|v_#memory_int_70|, #length=|v_#length_76|, ULTIMATE.start_#in~argc=|v_ULTIMATE.start_#in~argc_8|, ULTIMATE.start_#in~argv.offset=|v_ULTIMATE.start_#in~argv.offset_8|, ULTIMATE.start_#in~argv.base=|v_ULTIMATE.start_#in~argv.base_8|} OutVars{ULTIMATE.start_main_~argv.offset=v_ULTIMATE.start_main_~argv.offset_15, ~j~0=v_~j~0_35, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_26|, ULTIMATE.start_main_~#id1~0.base=|v_ULTIMATE.start_main_~#id1~0.base_50|, #NULL.offset=|v_#NULL.offset_8|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_16|, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_23|, ULTIMATE.start_#in~argv.offset=|v_ULTIMATE.start_#in~argv.offset_8|, ULTIMATE.start_main_~argv.base=v_ULTIMATE.start_main_~argv.base_15, ULTIMATE.start_main_~#id2~0.base=|v_ULTIMATE.start_main_~#id2~0.base_44|, ULTIMATE.start_main_~a~2.base=v_ULTIMATE.start_main_~a~2.base_44, ULTIMATE.start_main_~#id2~0.offset=|v_ULTIMATE.start_main_~#id2~0.offset_32|, ULTIMATE.start_main_~argc=v_ULTIMATE.start_main_~argc_14, #length=|v_#length_75|, ULTIMATE.start_#in~argc=|v_ULTIMATE.start_#in~argc_8|, ~y~0=v_~y~0_56, ULTIMATE.start_#in~argv.base=|v_ULTIMATE.start_#in~argv.base_8|, ULTIMATE.start_main_~a~2.offset=v_ULTIMATE.start_main_~a~2.offset_38, ULTIMATE.start_main_#in~argv.base=|v_ULTIMATE.start_main_#in~argv.base_15|, ULTIMATE.start_main_#in~argv.offset=|v_ULTIMATE.start_main_#in~argv.offset_15|, ~size~0=v_~size~0_55, ~i~0=v_~i~0_13, ULTIMATE.start_main_#t~malloc5.base=|v_ULTIMATE.start_main_#t~malloc5.base_22|, ULTIMATE.start_main_old_#valid=|v_ULTIMATE.start_main_old_#valid_14|, #NULL.base=|v_#NULL.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_35|, ~ind~0=v_~ind~0_163, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_29|, #valid=|v_#valid_148|, ULTIMATE.start_main_#in~argc=|v_ULTIMATE.start_main_#in~argc_15|, #memory_int=|v_#memory_int_69|, ~z~0=v_~z~0_35, ULTIMATE.start_main_~#id1~0.offset=|v_ULTIMATE.start_main_~#id1~0.offset_39|, ~x~0=v_~x~0_30, ULTIMATE.start_main_#t~malloc5.offset=|v_ULTIMATE.start_main_#t~malloc5.offset_22|, currentRoundingMode=v_currentRoundingMode_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ~j~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#id1~0.base, #NULL.offset, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_#t~nondet7, ULTIMATE.start_main_~argv.base, ULTIMATE.start_main_~#id2~0.base, ULTIMATE.start_main_~a~2.base, ULTIMATE.start_main_~#id2~0.offset, ULTIMATE.start_main_~argc, #length, ~y~0, ULTIMATE.start_main_~a~2.offset, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ~size~0, ~i~0, ULTIMATE.start_main_#t~malloc5.base, ULTIMATE.start_main_old_#valid, #NULL.base, ~ind~0, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~z~0, ULTIMATE.start_main_~#id1~0.offset, ~x~0, ULTIMATE.start_main_#t~malloc5.offset, currentRoundingMode] because there is no mapped edge [2019-12-07 15:12:58,371 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [297] [297] t1ENTRY-->L1043: Formula: (and (= v_t1Thread1of1ForFork0_~arg.offset_4 |v_t1Thread1of1ForFork0_#in~arg.offset_4|) (= v_t1Thread1of1ForFork0_~arg.base_4 |v_t1Thread1of1ForFork0_#in~arg.base_4|) (= v_~x~0_6 (_ bv1 32))) InVars {t1Thread1of1ForFork0_#in~arg.base=|v_t1Thread1of1ForFork0_#in~arg.base_4|, t1Thread1of1ForFork0_#in~arg.offset=|v_t1Thread1of1ForFork0_#in~arg.offset_4|} OutVars{t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_4, t1Thread1of1ForFork0_#in~arg.base=|v_t1Thread1of1ForFork0_#in~arg.base_4|, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_4, ~x~0=v_~x~0_6, t1Thread1of1ForFork0_#in~arg.offset=|v_t1Thread1of1ForFork0_#in~arg.offset_4|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_~arg.base, t1Thread1of1ForFork0_~arg.offset, ~x~0] because there is no mapped edge [2019-12-07 15:12:58,371 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [289] [289] L1043-->L1045-2: Formula: (and (= (_ bv1 32) v_~y~0_16) (= v_t1Thread1of1ForFork0_~arg.offset_3 v_t1Thread1of1ForFork0_~a~0.offset_4) (= v_t1Thread1of1ForFork0_~arg.base_3 v_t1Thread1of1ForFork0_~a~0.base_5)) InVars {t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_3, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_3} OutVars{t1Thread1of1ForFork0_~arg.base=v_t1Thread1of1ForFork0_~arg.base_3, t1Thread1of1ForFork0_~a~0.offset=v_t1Thread1of1ForFork0_~a~0.offset_4, t1Thread1of1ForFork0_~arg.offset=v_t1Thread1of1ForFork0_~arg.offset_3, t1Thread1of1ForFork0_~a~0.base=v_t1Thread1of1ForFork0_~a~0.base_5, ~y~0=v_~y~0_16} AuxVars[] AssignedVars[t1Thread1of1ForFork0_~a~0.offset, t1Thread1of1ForFork0_~a~0.base, ~y~0] because there is no mapped edge [2019-12-07 15:12:58,371 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [301] [301] L1045-2-->L1049-1: Formula: (or (not (= (_ bv1 32) ~y~0_In-452519334)) (= (_ bv0 32) ~z~0_In-452519334)) InVars {~z~0=~z~0_In-452519334, ~y~0=~y~0_In-452519334} OutVars{~z~0=~z~0_In-452519334, ~y~0=~y~0_In-452519334} AuxVars[] AssignedVars[] because there is no mapped edge [2019-12-07 15:12:58,372 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [286] [286] L1048-1-->L1049: Formula: (= v_~ind~0_41 (bvadd v_~ind~0_42 (_ bv1 32))) InVars {~ind~0=v_~ind~0_42} OutVars{~ind~0=v_~ind~0_41, t1Thread1of1ForFork0_#t~pre2=|v_t1Thread1of1ForFork0_#t~pre2_5|} AuxVars[] AssignedVars[~ind~0, t1Thread1of1ForFork0_#t~pre2] because there is no mapped edge [2019-12-07 15:12:58,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b6bd023-a91c-4930-ad95-df79b8056b17/bin/utaipan/witness.graphml [2019-12-07 15:12:58,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:12:58,400 INFO L168 Benchmark]: Toolchain (without parser) took 13345.25 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 276.8 MB). Free memory was 947.0 MB in the beginning and 991.8 MB in the end (delta: -44.7 MB). Peak memory consumption was 232.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:58,400 INFO L168 Benchmark]: CDTParser took 0.12 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 15:12:58,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:58,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.17 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 15:12:58,401 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 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 15:12:58,401 INFO L168 Benchmark]: RCFGBuilder took 329.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:58,401 INFO L168 Benchmark]: TraceAbstraction took 12449.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 136.3 MB). Free memory was 1.0 GB in the beginning and 991.8 MB in the end (delta: 49.5 MB). Peak memory consumption was 185.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:58,402 INFO L168 Benchmark]: Witness Printer took 30.26 ms. Allocated memory is still 1.3 GB. Free memory is still 991.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:12:58,403 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 471.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -124.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.17 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 25.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 329.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12449.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 136.3 MB). Free memory was 1.0 GB in the beginning and 991.8 MB in the end (delta: 49.5 MB). Peak memory consumption was 185.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.26 ms. Allocated memory is still 1.3 GB. Free memory is still 991.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.7s, 92 ProgramPointsBefore, 44 ProgramPointsAfterwards, 94 TransitionsBefore, 47 TransitionsAfterwards, 2280 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 989 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 6474 CheckedPairsTotal, 66 TotalNumberOfCompositions - CounterExampleResult [Line: 1049]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={1:0}, i=1, ind=0, j=2, size=2, x=0, y=0, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [++ind=1, a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 12 error locations. Result: UNSAFE, OverallTime: 12.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 394 SDtfs, 597 SDslu, 831 SDs, 0 SdLazy, 396 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1351occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 158 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 64 ConstructedInterpolants, 15 QuantifiedInterpolants, 4802 SizeOfPredicates, 43 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 incorrect! Received shutdown request...