./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 a3c246dc22ee025e6722717057cde618bbb130ed ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 a3c246dc22ee025e6722717057cde618bbb130ed ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:11:14,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:11:14,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:11:14,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:11:14,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:11:14,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:11:14,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:11:14,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:11:14,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:11:14,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:11:14,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:11:14,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:11:14,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:11:14,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:11:14,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:11:14,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:11:14,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:11:14,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:11:14,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:11:14,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:11:14,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:11:14,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:11:14,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:11:14,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:11:14,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:11:14,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:11:14,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:11:14,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:11:14,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:11:14,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:11:14,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:11:14,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:11:14,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:11:14,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:11:14,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:11:14,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:11:14,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:11:14,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:11:14,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:11:14,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:11:14,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:11:14,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 10:11:14,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:11:14,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:11:14,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:11:14,835 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:11:14,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:11:14,836 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:11:14,837 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:11:14,837 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:11:14,837 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:11:14,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:11:14,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:11:14,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:11:14,838 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:11:14,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:11:14,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:11:14,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:11:14,840 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c246dc22ee025e6722717057cde618bbb130ed [2020-12-09 10:11:15,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:11:15,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:11:15,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:11:15,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:11:15,047 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:11:15,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-12-09 10:11:15,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/130ddd4c0/2a8ba7d3d0054e04a7be08d2635d8554/FLAG83a459dbf [2020-12-09 10:11:15,500 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:11:15,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-12-09 10:11:15,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/130ddd4c0/2a8ba7d3d0054e04a7be08d2635d8554/FLAG83a459dbf [2020-12-09 10:11:15,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/130ddd4c0/2a8ba7d3d0054e04a7be08d2635d8554 [2020-12-09 10:11:15,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:11:15,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:11:15,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:11:15,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:11:15,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:11:15,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:11:15" (1/1) ... [2020-12-09 10:11:15,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b10b9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:15, skipping insertion in model container [2020-12-09 10:11:15,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:11:15" (1/1) ... [2020-12-09 10:11:15,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:11:15,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:11:15,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:11:15,815 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) [2020-12-09 10:11:15,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4805df14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:15, skipping insertion in model container [2020-12-09 10:11:15,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:11:15,816 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 10:11:15,818 INFO L168 Benchmark]: Toolchain (without parser) took 293.79 ms. Allocated memory is still 132.1 MB. Free memory was 93.9 MB in the beginning and 103.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:15,818 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 132.1 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:11:15,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.97 ms. Allocated memory is still 132.1 MB. Free memory was 93.6 MB in the beginning and 103.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:15,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 132.1 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.97 ms. Allocated memory is still 132.1 MB. Free memory was 93.6 MB in the beginning and 103.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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 0.2.0-7b2dab5 [2020-12-09 10:11:17,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:11:17,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:11:17,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:11:17,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:11:17,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:11:17,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:11:17,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:11:17,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:11:17,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:11:17,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:11:17,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:11:17,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:11:17,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:11:17,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:11:17,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:11:17,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:11:17,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:11:17,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:11:17,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:11:17,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:11:17,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:11:17,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:11:17,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:11:17,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:11:17,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:11:17,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:11:17,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:11:17,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:11:17,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:11:17,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:11:17,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:11:17,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:11:17,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:11:17,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:11:17,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:11:17,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:11:17,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:11:17,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:11:17,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:11:17,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:11:17,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 10:11:17,281 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:11:17,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:11:17,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:11:17,283 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:11:17,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:11:17,283 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:11:17,283 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:11:17,283 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:11:17,284 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:11:17,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:11:17,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:11:17,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:11:17,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:11:17,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:11:17,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:11:17,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:11:17,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:11:17,286 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:11:17,286 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:11:17,286 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:11:17,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:11:17,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:11:17,287 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:11:17,287 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:11:17,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:11:17,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:11:17,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:11:17,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:11:17,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:11:17,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:11:17,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:11:17,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:11:17,289 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:11:17,289 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:11:17,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:11:17,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:11:17,290 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c246dc22ee025e6722717057cde618bbb130ed [2020-12-09 10:11:17,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:11:17,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:11:17,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:11:17,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:11:17,535 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:11:17,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-12-09 10:11:17,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/578f57b47/f0cbc9233daa4856a62b4171ef9e05f2/FLAG435212151 [2020-12-09 10:11:18,101 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:11:18,102 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2020-12-09 10:11:18,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/578f57b47/f0cbc9233daa4856a62b4171ef9e05f2/FLAG435212151 [2020-12-09 10:11:18,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/data/578f57b47/f0cbc9233daa4856a62b4171ef9e05f2 [2020-12-09 10:11:18,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:11:18,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:11:18,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:11:18,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:11:18,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:11:18,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:11:18" (1/1) ... [2020-12-09 10:11:18,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38474cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:18, skipping insertion in model container [2020-12-09 10:11:18,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:11:18" (1/1) ... [2020-12-09 10:11:18,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:11:18,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:11:18,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:11:18,936 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 10:11:18,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:11:18,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:11:18,979 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:11:19,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:11:19,077 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:11:19,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19 WrapperNode [2020-12-09 10:11:19,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:11:19,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:11:19,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:11:19,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:11:19,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:11:19,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:11:19,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:11:19,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:11:19,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... [2020-12-09 10:11:19,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:11:19,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:11:19,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:11:19,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:11:19,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 10:11:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:11:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:11:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 10:11:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:11:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:11:19,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:11:19,390 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-09 10:11:19,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:11:19 BoogieIcfgContainer [2020-12-09 10:11:19,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:11:19,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:11:19,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:11:19,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:11:19,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:11:18" (1/3) ... [2020-12-09 10:11:19,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116b5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:11:19, skipping insertion in model container [2020-12-09 10:11:19,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:11:19" (2/3) ... [2020-12-09 10:11:19,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5116b5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:11:19, skipping insertion in model container [2020-12-09 10:11:19,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:11:19" (3/3) ... [2020-12-09 10:11:19,396 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test5.i [2020-12-09 10:11:19,405 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:11:19,408 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 10:11:19,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 10:11:19,428 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:11:19,429 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 10:11:19,429 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:11:19,429 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:11:19,429 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:11:19,429 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:11:19,429 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:11:19,429 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:11:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 10:11:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 10:11:19,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:19,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:19,443 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:19,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:19,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965640, now seen corresponding path program 1 times [2020-12-09 10:11:19,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:19,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13492468] [2020-12-09 10:11:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:19,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:11:19,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:19,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:19,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13492468] [2020-12-09 10:11:19,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:19,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 10:11:19,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38993345] [2020-12-09 10:11:19,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:11:19,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:19,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:11:19,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:11:19,586 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-12-09 10:11:19,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:19,647 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-12-09 10:11:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 10:11:19,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 10:11:19,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:19,654 INFO L225 Difference]: With dead ends: 29 [2020-12-09 10:11:19,654 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 10:11:19,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:11:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 10:11:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-12-09 10:11:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 10:11:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-09 10:11:19,676 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-12-09 10:11:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:19,676 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-09 10:11:19,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:11:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-09 10:11:19,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 10:11:19,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:19,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:19,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:11:19,878 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:19,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:19,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-12-09 10:11:19,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:19,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740362518] [2020-12-09 10:11:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:19,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:11:19,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:19,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:19,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740362518] [2020-12-09 10:11:19,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:19,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:11:19,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517992193] [2020-12-09 10:11:19,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:11:19,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:19,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:11:19,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:11:19,996 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-12-09 10:11:20,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:20,038 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-12-09 10:11:20,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:11:20,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 10:11:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:20,039 INFO L225 Difference]: With dead ends: 16 [2020-12-09 10:11:20,040 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 10:11:20,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:11:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 10:11:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 10:11:20,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 10:11:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-09 10:11:20,043 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-12-09 10:11:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:20,043 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-09 10:11:20,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:11:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-09 10:11:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 10:11:20,044 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:20,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:20,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:11:20,246 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:20,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812682, now seen corresponding path program 1 times [2020-12-09 10:11:20,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:20,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133134668] [2020-12-09 10:11:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:20,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:11:20,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:20,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:20,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133134668] [2020-12-09 10:11:20,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:20,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:11:20,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88656842] [2020-12-09 10:11:20,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:11:20,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:20,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:11:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:11:20,412 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2020-12-09 10:11:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:20,427 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-09 10:11:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:11:20,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-09 10:11:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:20,428 INFO L225 Difference]: With dead ends: 22 [2020-12-09 10:11:20,429 INFO L226 Difference]: Without dead ends: 21 [2020-12-09 10:11:20,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:11:20,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-09 10:11:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2020-12-09 10:11:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 10:11:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-09 10:11:20,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-09 10:11:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:20,431 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-09 10:11:20,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:11:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-09 10:11:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 10:11:20,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:20,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:20,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:11:20,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2020-12-09 10:11:20,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:20,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210659652] [2020-12-09 10:11:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:20,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 10:11:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:20,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:20,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210659652] [2020-12-09 10:11:20,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:20,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:11:20,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312825268] [2020-12-09 10:11:20,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 10:11:20,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:20,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 10:11:20,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 10:11:20,748 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-12-09 10:11:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:20,828 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-12-09 10:11:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 10:11:20,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-09 10:11:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:20,829 INFO L225 Difference]: With dead ends: 22 [2020-12-09 10:11:20,829 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 10:11:20,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:11:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 10:11:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2020-12-09 10:11:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 10:11:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-09 10:11:20,831 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2020-12-09 10:11:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:20,832 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-09 10:11:20,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 10:11:20,832 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-09 10:11:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 10:11:20,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:20,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:21,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 10:11:21,033 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:21,033 INFO L82 PathProgramCache]: Analyzing trace with hash 176610313, now seen corresponding path program 1 times [2020-12-09 10:11:21,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:21,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89062007] [2020-12-09 10:11:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:21,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 10:11:21,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:21,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:21,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89062007] [2020-12-09 10:11:21,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:21,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 10:11:21,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221835553] [2020-12-09 10:11:21,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:11:21,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:21,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:11:21,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:11:21,105 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-12-09 10:11:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:21,142 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-12-09 10:11:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:11:21,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 10:11:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:21,143 INFO L225 Difference]: With dead ends: 15 [2020-12-09 10:11:21,143 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 10:11:21,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:11:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 10:11:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-09 10:11:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 10:11:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-09 10:11:21,145 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2020-12-09 10:11:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:21,145 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-09 10:11:21,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:11:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-09 10:11:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:11:21,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:21,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:21,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:11:21,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:21,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:21,348 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2020-12-09 10:11:21,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:21,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019393018] [2020-12-09 10:11:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:21,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:11:21,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:21,494 INFO L382 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 [2020-12-09 10:11:21,495 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 10:11:21,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 10:11:21,498 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 10:11:21,498 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 10:11:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:21,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:21,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019393018] [2020-12-09 10:11:21,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:21,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:11:21,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118605021] [2020-12-09 10:11:21,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:11:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:21,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:11:21,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:11:21,517 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2020-12-09 10:11:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:21,558 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-09 10:11:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:11:21,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 10:11:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:21,559 INFO L225 Difference]: With dead ends: 11 [2020-12-09 10:11:21,559 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 10:11:21,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:11:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 10:11:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 10:11:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 10:11:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-12-09 10:11:21,560 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2020-12-09 10:11:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:21,560 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-12-09 10:11:21,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:11:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-09 10:11:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 10:11:21,561 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:11:21,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:11:21,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 10:11:21,763 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:11:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:11:21,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832814, now seen corresponding path program 1 times [2020-12-09 10:11:21,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:11:21,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65850859] [2020-12-09 10:11:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/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 [2020-12-09 10:11:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:11:21,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 10:11:21,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:11:21,939 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 10:11:21,940 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-09 10:11:21,942 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 10:11:21,954 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2020-12-09 10:11:21,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:11:21,959 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 10:11:21,959 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-12-09 10:11:21,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:11:21,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:11:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:11:24,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:11:24,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65850859] [2020-12-09 10:11:24,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:11:24,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 10:11:24,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909781394] [2020-12-09 10:11:24,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 10:11:24,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:11:24,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 10:11:24,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=1, NotChecked=0, Total=56 [2020-12-09 10:11:24,096 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 8 states. [2020-12-09 10:11:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:11:26,243 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-12-09 10:11:26,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 10:11:26,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-09 10:11:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:11:26,244 INFO L225 Difference]: With dead ends: 10 [2020-12-09 10:11:26,245 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:11:26,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2020-12-09 10:11:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:11:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:11:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:11:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:11:26,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 10:11:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:11:26,246 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:11:26,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 10:11:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:11:26,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:11:26,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 10:11:26,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:11:26 BoogieIcfgContainer [2020-12-09 10:11:26,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:11:26,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:11:26,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:11:26,461 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:11:26,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:11:19" (3/4) ... [2020-12-09 10:11:26,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:11:26,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-09 10:11:26,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 10:11:26,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:11:26,514 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_584696a9-ecc1-40ad-b523-1a4d39fbc295/bin/utaipan/witness.graphml [2020-12-09 10:11:26,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:11:26,515 INFO L168 Benchmark]: Toolchain (without parser) took 7902.04 ms. Allocated memory was 60.8 MB in the beginning and 111.1 MB in the end (delta: 50.3 MB). Free memory was 40.7 MB in the beginning and 74.0 MB in the end (delta: -33.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,515 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:11:26,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.92 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 40.6 MB in the beginning and 60.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.48 ms. Allocated memory is still 92.3 MB. Free memory was 60.5 MB in the beginning and 58.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,517 INFO L168 Benchmark]: Boogie Preprocessor took 18.07 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 57.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,518 INFO L168 Benchmark]: RCFGBuilder took 257.79 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 67.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,518 INFO L168 Benchmark]: TraceAbstraction took 7067.01 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 67.8 MB in the beginning and 76.9 MB in the end (delta: -9.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,519 INFO L168 Benchmark]: Witness Printer took 53.97 ms. Allocated memory is still 111.1 MB. Free memory was 76.9 MB in the beginning and 74.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:11:26,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.92 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 40.6 MB in the beginning and 60.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.48 ms. Allocated memory is still 92.3 MB. Free memory was 60.5 MB in the beginning and 58.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.07 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 57.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 257.79 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 67.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7067.01 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 67.8 MB in the beginning and 76.9 MB in the end (delta: -9.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 53.97 ms. Allocated memory is still 111.1 MB. Free memory was 76.9 MB in the beginning and 74.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 770]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 119 SDslu, 91 SDs, 0 SdLazy, 132 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 9 QuantifiedInterpolants, 2505 SizeOfPredicates, 42 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...