./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/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 0775aa74e42740d69127a88680deb3bae2149559 ........................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/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 0775aa74e42740d69127a88680deb3bae2149559 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:14:38,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:14:38,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:14:38,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:14:38,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:14:38,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:14:38,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:14:38,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:14:38,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:14:38,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:14:38,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:14:38,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:14:38,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:14:38,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:14:38,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:14:38,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:14:38,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:14:38,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:14:38,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:14:38,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:14:38,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:14:38,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:14:38,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:14:38,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:14:38,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:14:38,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:14:38,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:14:38,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:14:38,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:14:38,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:14:38,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:14:38,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:14:38,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:14:38,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:14:38,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:14:38,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:14:38,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:14:38,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:14:38,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:14:38,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:14:38,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:14:38,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 20:14:38,563 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:14:38,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:14:38,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:14:38,564 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:14:38,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:14:38,565 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:14:38,565 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:14:38,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:14:38,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:14:38,565 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:14:38,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 20:14:38,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 20:14:38,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 20:14:38,566 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:14:38,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:14:38,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:14:38,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:14:38,568 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-12-07 20:14:38,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:14:38,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:14:38,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:14:38,681 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:14:38,681 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:14:38,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-12-07 20:14:38,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/0ecfe300c/f3fa26a825624ecba801e267a9dec814/FLAG89fce9819 [2019-12-07 20:14:39,187 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:14:39,188 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-12-07 20:14:39,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/0ecfe300c/f3fa26a825624ecba801e267a9dec814/FLAG89fce9819 [2019-12-07 20:14:39,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/0ecfe300c/f3fa26a825624ecba801e267a9dec814 [2019-12-07 20:14:39,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:14:39,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:14:39,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:14:39,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:14:39,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:14:39,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:14:39" (1/1) ... [2019-12-07 20:14:39,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e739d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:39, skipping insertion in model container [2019-12-07 20:14:39,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:14:39" (1/1) ... [2019-12-07 20:14:39,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:14:39,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:14:39,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:14:39,516 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:14:39,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f45d82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:39, skipping insertion in model container [2019-12-07 20:14:39,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:14:39,517 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:14:39,519 INFO L168 Benchmark]: Toolchain (without parser) took 304.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:39,519 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:14:39,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:39,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:14:40,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:14:40,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:14:40,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:14:40,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:14:40,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:14:40,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:14:40,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:14:40,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:14:40,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:14:40,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:14:40,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:14:40,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:14:40,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:14:40,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:14:40,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:14:40,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:14:40,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:14:40,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:14:40,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:14:40,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:14:40,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:14:40,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:14:40,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:14:40,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:14:40,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:14:40,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:14:40,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:14:40,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:14:40,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:14:40,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:14:40,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:14:40,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:14:40,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:14:40,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:14:40,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:14:40,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:14:40,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:14:40,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:14:40,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:14:40,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:14:40,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-12-07 20:14:40,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:14:40,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:14:40,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:14:40,694 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:14:40,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:14:40,695 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:14:40,695 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:14:40,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:14:40,695 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:14:40,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 20:14:40,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 20:14:40,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:14:40,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:14:40,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 20:14:40,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:14:40,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:14:40,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:14:40,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:14:40,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:14:40,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:14:40,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:14:40,700 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-12-07 20:14:40,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:14:40,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:14:40,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:14:40,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:14:40,875 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:14:40,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-12-07 20:14:40,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/74d75847e/5db3b79c60f74c5db3783b318e54bdef/FLAG4e81b985d [2019-12-07 20:14:41,291 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:14:41,292 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-12-07 20:14:41,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/74d75847e/5db3b79c60f74c5db3783b318e54bdef/FLAG4e81b985d [2019-12-07 20:14:41,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/data/74d75847e/5db3b79c60f74c5db3783b318e54bdef [2019-12-07 20:14:41,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:14:41,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:14:41,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:14:41,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:14:41,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:14:41,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:14:41" (1/1) ... [2019-12-07 20:14:41,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b7e8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:41, skipping insertion in model container [2019-12-07 20:14:41,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:14:41" (1/1) ... [2019-12-07 20:14:41,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:14:41,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:14:41,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:14:41,993 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:14:42,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:14:42,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:14:42,044 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:14:42,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:14:42,138 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:14:42,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42 WrapperNode [2019-12-07 20:14:42,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:14:42,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:14:42,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:14:42,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:14:42,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:14:42,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:14:42,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:14:42,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:14:42,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... [2019-12-07 20:14:42,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:14:42,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:14:42,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:14:42,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:14:42,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:14:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 20:14:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:14:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:14:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 20:14:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:14:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:14:42,400 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:14:42,400 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 20:14:42,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:14:42 BoogieIcfgContainer [2019-12-07 20:14:42,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:14:42,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:14:42,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:14:42,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:14:42,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:14:41" (1/3) ... [2019-12-07 20:14:42,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17eb1a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:14:42, skipping insertion in model container [2019-12-07 20:14:42,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:14:42" (2/3) ... [2019-12-07 20:14:42,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17eb1a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:14:42, skipping insertion in model container [2019-12-07 20:14:42,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:14:42" (3/3) ... [2019-12-07 20:14:42,408 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-12-07 20:14:42,416 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:14:42,421 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-12-07 20:14:42,428 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-07 20:14:42,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:14:42,441 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 20:14:42,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:14:42,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:14:42,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:14:42,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:14:42,441 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:14:42,441 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:14:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-12-07 20:14:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:14:42,455 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:42,455 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:14:42,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:42,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:42,459 INFO L82 PathProgramCache]: Analyzing trace with hash 889509386, now seen corresponding path program 1 times [2019-12-07 20:14:42,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:42,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399200608] [2019-12-07 20:14:42,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:42,521 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:14:42,525 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:42,554 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:42,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:42,558 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399200608] [2019-12-07 20:14:42,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:42,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:14:42,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919536660] [2019-12-07 20:14:42,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:14:42,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:42,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:14:42,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:14:42,580 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-12-07 20:14:42,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:42,670 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2019-12-07 20:14:42,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:14:42,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 20:14:42,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:42,678 INFO L225 Difference]: With dead ends: 75 [2019-12-07 20:14:42,679 INFO L226 Difference]: Without dead ends: 67 [2019-12-07 20:14:42,680 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:14:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-12-07 20:14:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 23. [2019-12-07 20:14:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 20:14:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-12-07 20:14:42,705 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 6 [2019-12-07 20:14:42,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:42,705 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-12-07 20:14:42,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:14:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-12-07 20:14:42,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:14:42,706 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:42,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:14:42,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:14:42,908 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:42,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:42,909 INFO L82 PathProgramCache]: Analyzing trace with hash 889568968, now seen corresponding path program 1 times [2019-12-07 20:14:42,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:42,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339775369] [2019-12-07 20:14:42,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:43,032 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:14:43,035 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,052 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339775369] [2019-12-07 20:14:43,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:43,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:14:43,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11724649] [2019-12-07 20:14:43,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:14:43,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:43,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:14:43,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:14:43,062 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2019-12-07 20:14:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:43,105 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-12-07 20:14:43,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:14:43,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 20:14:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:43,106 INFO L225 Difference]: With dead ends: 32 [2019-12-07 20:14:43,107 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 20:14:43,107 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:14:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 20:14:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2019-12-07 20:14:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 20:14:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-12-07 20:14:43,112 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 6 [2019-12-07 20:14:43,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:43,112 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-12-07 20:14:43,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:14:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-12-07 20:14:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 20:14:43,113 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:43,113 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:43,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:14:43,315 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:43,316 INFO L82 PathProgramCache]: Analyzing trace with hash 119384781, now seen corresponding path program 1 times [2019-12-07 20:14:43,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:43,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877238580] [2019-12-07 20:14:43,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:43,402 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 20:14:43,403 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,416 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877238580] [2019-12-07 20:14:43,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:43,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:14:43,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012725820] [2019-12-07 20:14:43,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:14:43,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:43,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:14:43,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:14:43,419 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2019-12-07 20:14:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:43,438 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-12-07 20:14:43,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:14:43,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 20:14:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:43,439 INFO L225 Difference]: With dead ends: 20 [2019-12-07 20:14:43,440 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 20:14:43,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:14:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 20:14:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 20:14:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 20:14:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-12-07 20:14:43,442 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8 [2019-12-07 20:14:43,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:43,442 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-07 20:14:43,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:14:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-07 20:14:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 20:14:43,443 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:43,443 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:43,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:14:43,645 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:43,646 INFO L82 PathProgramCache]: Analyzing trace with hash -594039032, now seen corresponding path program 1 times [2019-12-07 20:14:43,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:43,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108465276] [2019-12-07 20:14:43,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:43,732 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:14:43,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,756 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:43,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108465276] [2019-12-07 20:14:43,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:43,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 20:14:43,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723789919] [2019-12-07 20:14:43,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 20:14:43,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:43,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 20:14:43,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:14:43,778 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2019-12-07 20:14:43,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:43,864 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-12-07 20:14:43,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:14:43,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-12-07 20:14:43,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:43,865 INFO L225 Difference]: With dead ends: 33 [2019-12-07 20:14:43,865 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 20:14:43,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 20:14:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 20:14:43,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2019-12-07 20:14:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 20:14:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-12-07 20:14:43,868 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2019-12-07 20:14:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:43,868 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-12-07 20:14:43,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 20:14:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-12-07 20:14:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:14:43,869 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:43,869 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:44,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,070 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:44,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1237187795, now seen corresponding path program 1 times [2019-12-07 20:14:44,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:44,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064356776] [2019-12-07 20:14:44,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:44,105 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:14:44,106 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:44,133 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 20:14:44,134 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:14:44,136 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 20:14:44,137 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:14:44,137 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 20:14:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,145 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,150 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064356776] [2019-12-07 20:14:44,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:44,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:14:44,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239315936] [2019-12-07 20:14:44,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:14:44,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:44,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:14:44,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:14:44,151 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2019-12-07 20:14:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:44,193 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-12-07 20:14:44,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:14:44,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 20:14:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:44,194 INFO L225 Difference]: With dead ends: 24 [2019-12-07 20:14:44,194 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 20:14:44,194 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:14:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 20:14:44,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-12-07 20:14:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 20:14:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-12-07 20:14:44,196 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2019-12-07 20:14:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:44,196 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-12-07 20:14:44,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:14:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-12-07 20:14:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 20:14:44,197 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:44,197 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:44,397 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,399 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:44,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:44,400 INFO L82 PathProgramCache]: Analyzing trace with hash 359142378, now seen corresponding path program 1 times [2019-12-07 20:14:44,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:44,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963983167] [2019-12-07 20:14:44,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:44,513 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:14:44,514 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,529 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,532 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963983167] [2019-12-07 20:14:44,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:44,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:14:44,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766451072] [2019-12-07 20:14:44,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:14:44,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:14:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:14:44,534 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2019-12-07 20:14:44,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:44,553 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-12-07 20:14:44,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:14:44,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 20:14:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:44,554 INFO L225 Difference]: With dead ends: 17 [2019-12-07 20:14:44,554 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 20:14:44,554 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:14:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 20:14:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 20:14:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 20:14:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 20:14:44,556 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-12-07 20:14:44,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:44,556 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 20:14:44,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:14:44,556 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 20:14:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:14:44,557 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:44,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:44,757 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,759 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:44,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:44,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1751488111, now seen corresponding path program 1 times [2019-12-07 20:14:44,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:44,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284966872] [2019-12-07 20:14:44,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:44,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 20:14:44,848 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,880 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:44,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284966872] [2019-12-07 20:14:44,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:44,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2019-12-07 20:14:44,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645200380] [2019-12-07 20:14:44,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 20:14:44,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:44,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 20:14:44,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:14:44,900 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2019-12-07 20:14:45,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:45,013 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2019-12-07 20:14:45,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 20:14:45,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-12-07 20:14:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:45,015 INFO L225 Difference]: With dead ends: 47 [2019-12-07 20:14:45,015 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 20:14:45,015 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2019-12-07 20:14:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 20:14:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 16. [2019-12-07 20:14:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 20:14:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-12-07 20:14:45,017 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-12-07 20:14:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:45,018 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-12-07 20:14:45,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 20:14:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-12-07 20:14:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:14:45,018 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:45,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:45,219 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:14:45,220 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1538443468, now seen corresponding path program 1 times [2019-12-07 20:14:45,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:45,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747189855] [2019-12-07 20:14:45,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:45,310 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 20:14:45,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:45,321 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 20:14:45,322 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:14:45,327 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 20:14:45,328 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:14:45,328 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-12-07 20:14:45,394 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-12-07 20:14:45,396 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:14:45,406 INFO L614 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-12-07 20:14:45,406 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:14:45,407 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-12-07 20:14:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:45,417 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:45,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747189855] [2019-12-07 20:14:45,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:45,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-12-07 20:14:45,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064601837] [2019-12-07 20:14:45,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:14:45,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:45,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:14:45,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:14:45,452 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 10 states. [2019-12-07 20:14:45,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:45,654 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-12-07 20:14:45,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 20:14:45,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-12-07 20:14:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:45,655 INFO L225 Difference]: With dead ends: 37 [2019-12-07 20:14:45,655 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 20:14:45,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:14:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 20:14:45,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-12-07 20:14:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 20:14:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-12-07 20:14:45,657 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 13 [2019-12-07 20:14:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:45,657 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-12-07 20:14:45,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:14:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-12-07 20:14:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:14:45,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:45,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:45,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:14:45,860 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash -2055459250, now seen corresponding path program 1 times [2019-12-07 20:14:45,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:45,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242122870] [2019-12-07 20:14:45,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:45,937 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:14:45,938 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:45,958 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:45,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:45,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242122870] [2019-12-07 20:14:45,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:45,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:14:45,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057988354] [2019-12-07 20:14:45,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:14:45,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:45,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:14:45,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:14:45,962 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 4 states. [2019-12-07 20:14:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:45,989 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2019-12-07 20:14:45,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:14:45,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 20:14:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:45,990 INFO L225 Difference]: With dead ends: 26 [2019-12-07 20:14:45,990 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 20:14:45,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:14:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 20:14:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2019-12-07 20:14:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 20:14:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-12-07 20:14:45,991 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-12-07 20:14:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:45,992 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-12-07 20:14:45,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:14:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-12-07 20:14:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:14:45,992 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:14:45,992 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:14:46,192 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 20:14:46,194 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE]=== [2019-12-07 20:14:46,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:46,195 INFO L82 PathProgramCache]: Analyzing trace with hash 447107319, now seen corresponding path program 1 times [2019-12-07 20:14:46,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:46,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38504594] [2019-12-07 20:14:46,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:14:46,265 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 20:14:46,266 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:14:46,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 20:14:46,271 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:14:46,279 INFO L614 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-12-07 20:14:46,280 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 20:14:46,280 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-12-07 20:14:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:46,418 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:14:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:14:50,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38504594] [2019-12-07 20:14:50,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:14:50,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 15 [2019-12-07 20:14:50,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324057040] [2019-12-07 20:14:50,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 20:14:50,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:14:50,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 20:14:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2019-12-07 20:14:50,648 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 17 states. [2019-12-07 20:14:57,102 WARN L192 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 30 [2019-12-07 20:14:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:14:57,251 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-12-07 20:14:57,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 20:14:57,251 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2019-12-07 20:14:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:14:57,251 INFO L225 Difference]: With dead ends: 22 [2019-12-07 20:14:57,251 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:14:57,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=154, Invalid=547, Unknown=1, NotChecked=0, Total=702 [2019-12-07 20:14:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:14:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:14:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:14:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:14:57,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 20:14:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:14:57,252 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:14:57,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 20:14:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:14:57,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:14:57,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 20:14:57,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:14:57 BoogieIcfgContainer [2019-12-07 20:14:57,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:14:57,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:14:57,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:14:57,462 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:14:57,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:14:42" (3/4) ... [2019-12-07 20:14:57,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:14:57,473 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 20:14:57,473 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 20:14:57,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 20:14:57,501 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0cd2b6e3-9b74-441d-929b-0af028427ad2/bin/utaipan/witness.graphml [2019-12-07 20:14:57,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:14:57,502 INFO L168 Benchmark]: Toolchain (without parser) took 15814.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:57,502 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:14:57,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:57,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:57,503 INFO L168 Benchmark]: Boogie Preprocessor took 19.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:14:57,503 INFO L168 Benchmark]: RCFGBuilder took 207.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:57,503 INFO L168 Benchmark]: TraceAbstraction took 15058.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -20.9 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:57,503 INFO L168 Benchmark]: Witness Printer took 39.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:14:57,505 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 207.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15058.70 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -20.9 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. * Witness Printer took 39.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 765]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 7 error locations. Result: SAFE, OverallTime: 15.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 350 SDslu, 170 SDs, 0 SdLazy, 351 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 138 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=8, 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, 10 MinimizatonAttempts, 121 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 184 ConstructedInterpolants, 15 QuantifiedInterpolants, 12000 SizeOfPredicates, 26 NumberOfNonLiveVariables, 407 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...