./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86b203c3a804c103d90401bd32cfcff28939b920 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86b203c3a804c103d90401bd32cfcff28939b920 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:38:33,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:38:33,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:38:33,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:38:33,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:38:33,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:38:33,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:38:33,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:38:33,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:38:33,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:38:33,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:38:33,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:38:33,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:38:33,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:38:33,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:38:33,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:38:33,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:38:33,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:38:33,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:38:33,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:38:33,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:38:33,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:38:33,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:38:33,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:38:33,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:38:33,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:38:33,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:38:33,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:38:33,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:38:33,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:38:33,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:38:33,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:38:33,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:38:33,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:38:33,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:38:33,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:38:33,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:38:33,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:38:33,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:38:33,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:38:33,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:38:33,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 06:38:33,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:38:33,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:38:33,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:38:33,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:38:33,708 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:38:33,709 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:38:33,709 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:38:33,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:38:33,709 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:38:33,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 06:38:33,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 06:38:33,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 06:38:33,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:38:33,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:38:33,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:38:33,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:38:33,712 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:38:33,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:38:33,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:38:33,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:38:33,712 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_136be063-d492-420a-b6a0-f21302c83545/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-12-09 06:38:33,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:38:33,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:38:33,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:38:33,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:38:33,898 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:38:33,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-09 06:38:33,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/0c589edd8/78df16460a95464cbc717cf8e835ee5a/FLAG5c92b0e95 [2020-12-09 06:38:34,347 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:38:34,348 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-09 06:38:34,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/0c589edd8/78df16460a95464cbc717cf8e835ee5a/FLAG5c92b0e95 [2020-12-09 06:38:34,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/0c589edd8/78df16460a95464cbc717cf8e835ee5a [2020-12-09 06:38:34,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:38:34,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:38:34,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:38:34,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:38:34,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:38:34,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:34" (1/1) ... [2020-12-09 06:38:34,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0b1b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:34, skipping insertion in model container [2020-12-09 06:38:34,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:34" (1/1) ... [2020-12-09 06:38:34,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:38:34,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:38:34,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:38:34,617 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 06:38:34,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e9af9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:34, skipping insertion in model container [2020-12-09 06:38:34,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:38:34,618 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 06:38:34,620 INFO L168 Benchmark]: Toolchain (without parser) took 248.72 ms. Allocated memory is still 104.9 MB. Free memory was 66.4 MB in the beginning and 80.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:34,620 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 104.9 MB. Free memory was 83.8 MB in the beginning and 83.7 MB in the end (delta: 77.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:38:34,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.89 ms. Allocated memory is still 104.9 MB. Free memory was 66.2 MB in the beginning and 80.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:34,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 104.9 MB. Free memory was 83.8 MB in the beginning and 83.7 MB in the end (delta: 77.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.89 ms. Allocated memory is still 104.9 MB. Free memory was 66.2 MB in the beginning and 80.7 MB in the end (delta: -14.5 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: 562]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:38:35,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:38:35,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:38:35,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:38:35,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:38:35,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:38:35,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:38:35,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:38:35,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:38:35,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:38:35,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:38:35,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:38:35,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:38:35,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:38:35,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:38:35,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:38:35,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:38:35,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:38:35,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:38:35,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:38:35,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:38:35,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:38:35,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:38:35,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:38:35,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:38:35,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:38:35,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:38:35,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:38:35,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:38:35,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:38:35,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:38:35,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:38:35,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:38:35,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:38:35,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:38:35,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:38:35,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:38:35,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:38:35,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:38:35,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:38:35,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:38:35,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 06:38:36,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:38:36,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:38:36,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:38:36,011 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:38:36,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:38:36,011 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:38:36,011 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:38:36,011 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:38:36,011 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:38:36,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 06:38:36,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 06:38:36,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:38:36,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:38:36,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:38:36,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:38:36,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:38:36,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:38:36,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:38:36,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:38:36,015 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:38:36,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:38:36,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:38:36,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:38:36,015 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_136be063-d492-420a-b6a0-f21302c83545/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-12-09 06:38:36,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:38:36,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:38:36,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:38:36,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:38:36,267 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:38:36,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-09 06:38:36,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/63e20f1da/5955244ec2a14cef8f149727dd2fc51e/FLAG30f98d39d [2020-12-09 06:38:36,720 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:38:36,720 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-09 06:38:36,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/63e20f1da/5955244ec2a14cef8f149727dd2fc51e/FLAG30f98d39d [2020-12-09 06:38:36,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/data/63e20f1da/5955244ec2a14cef8f149727dd2fc51e [2020-12-09 06:38:36,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:38:36,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:38:36,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:38:36,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:38:36,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:38:36,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:36" (1/1) ... [2020-12-09 06:38:36,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615cf455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:36, skipping insertion in model container [2020-12-09 06:38:36,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:36" (1/1) ... [2020-12-09 06:38:36,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:38:36,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:38:36,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:38:37,004 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 06:38:37,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:38:37,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:38:37,040 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:38:37,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:38:37,100 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:38:37,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37 WrapperNode [2020-12-09 06:38:37,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:38:37,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:38:37,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:38:37,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:38:37,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:38:37,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:38:37,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:38:37,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:38:37,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... [2020-12-09 06:38:37,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:38:37,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:38:37,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:38:37,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:38:37,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 06:38:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 06:38:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 06:38:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:38:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:38:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:38:37,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:38:37,459 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-09 06:38:37,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:37 BoogieIcfgContainer [2020-12-09 06:38:37,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:38:37,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:38:37,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:38:37,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:38:37,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:38:36" (1/3) ... [2020-12-09 06:38:37,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebb9c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:38:37, skipping insertion in model container [2020-12-09 06:38:37,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:37" (2/3) ... [2020-12-09 06:38:37,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebb9c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:38:37, skipping insertion in model container [2020-12-09 06:38:37,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:37" (3/3) ... [2020-12-09 06:38:37,468 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2020-12-09 06:38:37,483 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:38:37,485 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-12-09 06:38:37,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-12-09 06:38:37,508 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:38:37,508 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 06:38:37,508 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:38:37,509 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:38:37,509 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:38:37,509 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:38:37,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:38:37,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:38:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-12-09 06:38:37,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:38:37,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:37,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:37,524 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:37,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131947, now seen corresponding path program 1 times [2020-12-09 06:38:37,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:37,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754358855] [2020-12-09 06:38:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:37,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:38:37,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:37,676 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 06:38:37,677 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:37,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:37,682 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:37,682 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 06:38:37,733 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:37,733 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-09 06:38:37,740 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:37,754 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-09 06:38:37,756 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 06:38:37,756 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-09 06:38:37,774 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 06:38:37,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:37,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754358855] [2020-12-09 06:38:37,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:37,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:38:37,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011698098] [2020-12-09 06:38:37,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 06:38:37,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:37,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 06:38:37,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:38:37,797 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 5 states. [2020-12-09 06:38:37,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:37,920 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-12-09 06:38:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:38:37,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 06:38:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:37,927 INFO L225 Difference]: With dead ends: 36 [2020-12-09 06:38:37,927 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 06:38:37,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 06:38:37,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 06:38:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-09 06:38:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 06:38:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-12-09 06:38:37,954 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 9 [2020-12-09 06:38:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:37,954 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-12-09 06:38:37,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 06:38:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-12-09 06:38:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:38:37,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:37,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:38,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:38:38,157 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:38,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2097131948, now seen corresponding path program 1 times [2020-12-09 06:38:38,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:38,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195321950] [2020-12-09 06:38:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:38,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 06:38:38,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:38,349 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 06:38:38,350 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:38,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:38,363 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 06:38:38,364 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:38,370 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:38,371 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:38,372 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:16 [2020-12-09 06:38:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 06:38:38,424 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-12-09 06:38:38,426 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:38,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:38,448 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:38,448 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-12-09 06:38:38,451 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:38,460 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:38,467 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 06:38:38,467 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2020-12-09 06:38:38,518 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 06:38:38,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:38,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195321950] [2020-12-09 06:38:38,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:38,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:38:38,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848422300] [2020-12-09 06:38:38,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 06:38:38,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:38,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 06:38:38,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:38:38,522 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 5 states. [2020-12-09 06:38:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:38,686 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-12-09 06:38:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 06:38:38,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 06:38:38,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:38,688 INFO L225 Difference]: With dead ends: 27 [2020-12-09 06:38:38,688 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 06:38:38,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 06:38:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 06:38:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-09 06:38:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 06:38:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-12-09 06:38:38,693 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 9 [2020-12-09 06:38:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:38,693 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-12-09 06:38:38,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 06:38:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-12-09 06:38:38,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 06:38:38,694 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:38,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:38,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:38:38,896 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:38,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:38,898 INFO L82 PathProgramCache]: Analyzing trace with hash 711566546, now seen corresponding path program 1 times [2020-12-09 06:38:38,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:38,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904223649] [2020-12-09 06:38:38,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:39,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:38:39,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:39,098 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 06:38:39,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:39,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904223649] [2020-12-09 06:38:39,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:39,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:38:39,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269417858] [2020-12-09 06:38:39,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:38:39,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:39,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:38:39,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 06:38:39,100 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 6 states. [2020-12-09 06:38:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:39,204 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-12-09 06:38:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 06:38:39,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 06:38:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:39,205 INFO L225 Difference]: With dead ends: 26 [2020-12-09 06:38:39,206 INFO L226 Difference]: Without dead ends: 26 [2020-12-09 06:38:39,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-09 06:38:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-09 06:38:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-09 06:38:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 06:38:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-12-09 06:38:39,208 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 17 [2020-12-09 06:38:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:39,209 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-12-09 06:38:39,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:38:39,209 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-12-09 06:38:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 06:38:39,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:39,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:39,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 06:38:39,411 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:39,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:39,413 INFO L82 PathProgramCache]: Analyzing trace with hash 915652980, now seen corresponding path program 1 times [2020-12-09 06:38:39,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:39,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950375296] [2020-12-09 06:38:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:39,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 06:38:39,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:39,514 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 06:38:39,514 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:39,516 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,516 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-12-09 06:38:39,540 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-12-09 06:38:39,541 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:39,544 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,544 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:7 [2020-12-09 06:38:39,550 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 06:38:39,551 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,553 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:39,553 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:39,553 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-09 06:38:39,570 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 06:38:39,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:39,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950375296] [2020-12-09 06:38:39,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:39,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 06:38:39,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202587282] [2020-12-09 06:38:39,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 06:38:39,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:39,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 06:38:39,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-09 06:38:39,572 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 9 states. [2020-12-09 06:38:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:39,750 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-12-09 06:38:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 06:38:39,751 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-12-09 06:38:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:39,751 INFO L225 Difference]: With dead ends: 25 [2020-12-09 06:38:39,751 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 06:38:39,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-12-09 06:38:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 06:38:39,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-09 06:38:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-09 06:38:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-12-09 06:38:39,754 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 19 [2020-12-09 06:38:39,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:39,754 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-12-09 06:38:39,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 06:38:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-12-09 06:38:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 06:38:39,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:39,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:39,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 06:38:39,957 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:39,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:39,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1679528615, now seen corresponding path program 1 times [2020-12-09 06:38:39,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:39,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745486849] [2020-12-09 06:38:39,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:40,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 06:38:40,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:40,139 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 06:38:40,140 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:40,153 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:40,155 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 06:38:40,155 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:15 [2020-12-09 06:38:40,247 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-12-09 06:38:40,248 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:40,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:40,259 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 06:38:40,259 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2020-12-09 06:38:40,274 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 06:38:40,275 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:40,285 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:40,286 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 06:38:40,286 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:22, output treesize:11 [2020-12-09 06:38:40,366 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 06:38:40,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:40,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745486849] [2020-12-09 06:38:40,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:40,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 06:38:40,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316497743] [2020-12-09 06:38:40,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 06:38:40,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:40,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 06:38:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-09 06:38:40,369 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 11 states. [2020-12-09 06:38:40,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:40,952 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-12-09 06:38:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 06:38:40,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-12-09 06:38:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:40,953 INFO L225 Difference]: With dead ends: 24 [2020-12-09 06:38:40,953 INFO L226 Difference]: Without dead ends: 24 [2020-12-09 06:38:40,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-12-09 06:38:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-09 06:38:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-09 06:38:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-09 06:38:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-12-09 06:38:40,956 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2020-12-09 06:38:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:40,956 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-12-09 06:38:40,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 06:38:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-12-09 06:38:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 06:38:40,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:40,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:41,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 06:38:41,158 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:41,160 INFO L82 PathProgramCache]: Analyzing trace with hash -525779434, now seen corresponding path program 1 times [2020-12-09 06:38:41,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:41,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483798177] [2020-12-09 06:38:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:41,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 06:38:41,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:41,269 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 06:38:41,270 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,272 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,272 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,272 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 06:38:41,304 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,304 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-12-09 06:38:41,307 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,314 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,314 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,314 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-12-09 06:38:41,358 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 06:38:41,358 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,365 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,366 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,366 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:25 [2020-12-09 06:38:41,404 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2020-12-09 06:38:41,406 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,412 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,412 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:25 [2020-12-09 06:38:41,419 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-09 06:38:41,420 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,425 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:41,426 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:17 [2020-12-09 06:38:41,467 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2020-12-09 06:38:41,469 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:41,477 INFO L625 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2020-12-09 06:38:41,477 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 06:38:41,478 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:13 [2020-12-09 06:38:41,502 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 06:38:41,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:41,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483798177] [2020-12-09 06:38:41,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:41,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 06:38:41,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641533427] [2020-12-09 06:38:41,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-09 06:38:41,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:41,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-09 06:38:41,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-09 06:38:41,503 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 12 states. [2020-12-09 06:38:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:41,911 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-12-09 06:38:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 06:38:41,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-12-09 06:38:41,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:41,912 INFO L225 Difference]: With dead ends: 23 [2020-12-09 06:38:41,913 INFO L226 Difference]: Without dead ends: 23 [2020-12-09 06:38:41,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-12-09 06:38:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-09 06:38:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-09 06:38:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 06:38:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-12-09 06:38:41,915 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 21 [2020-12-09 06:38:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:41,915 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-12-09 06:38:41,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-09 06:38:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-12-09 06:38:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 06:38:41,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:38:41,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:38:42,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 06:38:42,118 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 06:38:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:38:42,119 INFO L82 PathProgramCache]: Analyzing trace with hash 880706812, now seen corresponding path program 1 times [2020-12-09 06:38:42,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:38:42,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569592620] [2020-12-09 06:38:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/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 06:38:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:38:42,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 06:38:42,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:38:42,254 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 06:38:42,255 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,256 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:42,257 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,257 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 06:38:42,346 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 06:38:42,347 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:42,360 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,360 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:44 [2020-12-09 06:38:42,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2020-12-09 06:38:42,424 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:42,434 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,434 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:44 [2020-12-09 06:38:42,441 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2020-12-09 06:38:42,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 06:38:42,453 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 06:38:42,453 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:32 [2020-12-09 06:38:42,633 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 06:38:42,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:38:42,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569592620] [2020-12-09 06:38:42,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:38:42,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-09 06:38:42,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623392734] [2020-12-09 06:38:42,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 06:38:42,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:38:42,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 06:38:42,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:38:42,635 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 14 states. [2020-12-09 06:38:43,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:38:43,815 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-12-09 06:38:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-09 06:38:43,816 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-12-09 06:38:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:38:43,816 INFO L225 Difference]: With dead ends: 22 [2020-12-09 06:38:43,816 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:38:43,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2020-12-09 06:38:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:38:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:38:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:38:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:38:43,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-09 06:38:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:38:43,817 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:38:43,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 06:38:43,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:38:43,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:38:44,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 06:38:44,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:38:44 BoogieIcfgContainer [2020-12-09 06:38:44,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:38:44,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:38:44,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:38:44,024 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:38:44,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:37" (3/4) ... [2020-12-09 06:38:44,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:38:44,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 06:38:44,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 06:38:44,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 06:38:44,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:38:44,063 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_136be063-d492-420a-b6a0-f21302c83545/bin/utaipan/witness.graphml [2020-12-09 06:38:44,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:38:44,064 INFO L168 Benchmark]: Toolchain (without parser) took 7317.59 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 38.8 MB in the beginning and 21.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,065 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:38:44,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.03 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 29.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.63 ms. Allocated memory is still 58.7 MB. Free memory was 29.3 MB in the beginning and 27.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,066 INFO L168 Benchmark]: Boogie Preprocessor took 18.11 ms. Allocated memory is still 58.7 MB. Free memory was 27.4 MB in the beginning and 25.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:38:44,066 INFO L168 Benchmark]: RCFGBuilder took 311.61 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 25.9 MB in the beginning and 42.7 MB in the end (delta: -16.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,066 INFO L168 Benchmark]: TraceAbstraction took 6561.22 ms. Allocated memory is still 77.6 MB. Free memory was 42.1 MB in the beginning and 24.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,067 INFO L168 Benchmark]: Witness Printer took 39.26 ms. Allocated memory is still 77.6 MB. Free memory was 24.9 MB in the beginning and 21.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:38:44,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.03 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 29.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.63 ms. Allocated memory is still 58.7 MB. Free memory was 29.3 MB in the beginning and 27.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.11 ms. Allocated memory is still 58.7 MB. Free memory was 27.4 MB in the beginning and 25.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 311.61 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 25.9 MB in the beginning and 42.7 MB in the end (delta: -16.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6561.22 ms. Allocated memory is still 77.6 MB. Free memory was 42.1 MB in the beginning and 24.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Witness Printer took 39.26 ms. Allocated memory is still 77.6 MB. Free memory was 24.9 MB in the beginning and 21.6 MB in the end (delta: 3.3 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: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 357 SDslu, 103 SDs, 0 SdLazy, 580 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 110 ConstructedInterpolants, 29 QuantifiedInterpolants, 30714 SizeOfPredicates, 48 NumberOfNonLiveVariables, 411 ConjunctsInSsa, 86 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...