./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/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 34250e9d8f469697cb8850c8aa9214fde887cb00 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/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 34250e9d8f469697cb8850c8aa9214fde887cb00 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:34:48,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:34:48,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:34:48,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:34:48,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:34:48,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:34:48,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:34:48,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:34:48,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:34:48,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:34:48,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:34:48,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:34:48,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:34:48,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:34:48,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:34:48,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:34:48,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:34:48,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:34:48,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:34:48,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:34:48,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:34:48,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:34:48,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:34:48,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:34:48,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:34:48,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:34:48,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:34:48,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:34:48,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:34:48,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:34:48,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:34:48,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:34:48,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:34:48,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:34:48,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:34:48,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:34:48,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:34:48,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:34:48,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:34:48,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:34:48,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:34:48,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 18:34:48,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:34:48,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:34:48,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:34:48,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:34:48,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:34:48,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:34:48,881 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:34:48,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:34:48,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:34:48,881 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:34:48,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 18:34:48,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 18:34:48,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:34:48,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:34:48,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:34:48,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:34:48,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:34:48,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:34:48,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:34:48,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:34:48,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:34:48,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:34:48,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:34:48,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:34:48,885 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:34:48,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:34:48,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:34:48,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:34:48,885 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2020-12-09 18:34:49,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:34:49,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:34:49,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:34:49,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:34:49,103 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:34:49,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-12-09 18:34:49,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/546b3f453/4134f3bc37af477d805747f0ca60365e/FLAG72758d92d [2020-12-09 18:34:49,604 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:34:49,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-12-09 18:34:49,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/546b3f453/4134f3bc37af477d805747f0ca60365e/FLAG72758d92d [2020-12-09 18:34:49,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/546b3f453/4134f3bc37af477d805747f0ca60365e [2020-12-09 18:34:49,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:34:49,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:34:49,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:34:49,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:34:49,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:34:49,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:34:49" (1/1) ... [2020-12-09 18:34:49,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4977a037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:49, skipping insertion in model container [2020-12-09 18:34:49,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:34:49" (1/1) ... [2020-12-09 18:34:49,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:34:49,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:34:49,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:34:49,968 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-12-09 18:34:49,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48636798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:49, skipping insertion in model container [2020-12-09 18:34:49,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:34:49,969 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 18:34:49,971 INFO L168 Benchmark]: Toolchain (without parser) took 340.71 ms. Allocated memory is still 113.2 MB. Free memory was 88.4 MB in the beginning and 86.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:34:49,972 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 77.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:34:49,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.98 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 86.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:34:49,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 77.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 338.98 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 86.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:34:51,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:34:51,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:34:51,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:34:51,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:34:51,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:34:51,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:34:51,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:34:51,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:34:51,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:34:51,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:34:51,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:34:51,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:34:51,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:34:51,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:34:51,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:34:51,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:34:51,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:34:51,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:34:51,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:34:51,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:34:51,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:34:51,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:34:51,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:34:51,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:34:51,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:34:51,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:34:51,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:34:51,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:34:51,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:34:51,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:34:51,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:34:51,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:34:51,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:34:51,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:34:51,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:34:51,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:34:51,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:34:51,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:34:51,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:34:51,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:34:51,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 18:34:51,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:34:51,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:34:51,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:34:51,428 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:34:51,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:34:51,428 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:34:51,429 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:34:51,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:34:51,429 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:34:51,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 18:34:51,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 18:34:51,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:34:51,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:34:51,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:34:51,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:34:51,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:34:51,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:34:51,431 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 18:34:51,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 18:34:51,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 18:34:51,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:34:51,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:34:51,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:34:51,433 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:34:51,433 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:34:51,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:34:51,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:34:51,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:34:51,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:34:51,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:34:51,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:34:51,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:34:51,434 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:34:51,435 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:34:51,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:34:51,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:34:51,435 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2020-12-09 18:34:51,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:34:51,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:34:51,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:34:51,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:34:51,689 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:34:51,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-12-09 18:34:51,730 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/1d82184bf/05ce20e1fc8c4cc78a26da0ef3c7a493/FLAG2befb1c9a [2020-12-09 18:34:52,105 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:34:52,105 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2020-12-09 18:34:52,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/1d82184bf/05ce20e1fc8c4cc78a26da0ef3c7a493/FLAG2befb1c9a [2020-12-09 18:34:52,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/data/1d82184bf/05ce20e1fc8c4cc78a26da0ef3c7a493 [2020-12-09 18:34:52,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:34:52,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:34:52,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:34:52,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:34:52,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:34:52,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56519f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52, skipping insertion in model container [2020-12-09 18:34:52,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:34:52,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:34:52,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:34:52,760 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 18:34:52,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:34:52,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:34:52,805 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:34:52,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:34:52,902 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:34:52,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52 WrapperNode [2020-12-09 18:34:52,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:34:52,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:34:52,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:34:52,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:34:52,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:34:52,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:34:52,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:34:52,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:34:52,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... [2020-12-09 18:34:52,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:34:52,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:34:52,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:34:52,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:34:52,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:34:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 18:34:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:34:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:34:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 18:34:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:34:53,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:34:53,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:34:53,176 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 18:34:53,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:34:53 BoogieIcfgContainer [2020-12-09 18:34:53,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:34:53,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:34:53,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:34:53,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:34:53,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:34:52" (1/3) ... [2020-12-09 18:34:53,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7257ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:34:53, skipping insertion in model container [2020-12-09 18:34:53,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:34:52" (2/3) ... [2020-12-09 18:34:53,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7257ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:34:53, skipping insertion in model container [2020-12-09 18:34:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:34:53" (3/3) ... [2020-12-09 18:34:53,184 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2020-12-09 18:34:53,197 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:34:53,200 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 18:34:53,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 18:34:53,226 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:34:53,226 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 18:34:53,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:34:53,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:34:53,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:34:53,227 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:34:53,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:34:53,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:34:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 18:34:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 18:34:53,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:53,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:53,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:53,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:53,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965639, now seen corresponding path program 1 times [2020-12-09 18:34:53,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:53,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507035086] [2020-12-09 18:34:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:53,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 18:34:53,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:53,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:53,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507035086] [2020-12-09 18:34:53,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:53,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:34:53,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312719029] [2020-12-09 18:34:53,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:34:53,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:53,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:34:53,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:34:53,413 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-12-09 18:34:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:53,481 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-12-09 18:34:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:34:53,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 18:34:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:53,490 INFO L225 Difference]: With dead ends: 29 [2020-12-09 18:34:53,490 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 18:34:53,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:34:53,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 18:34:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-12-09 18:34:53,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 18:34:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-09 18:34:53,523 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-12-09 18:34:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:53,523 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-09 18:34:53,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:34:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-09 18:34:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 18:34:53,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:53,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:53,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:34:53,726 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:53,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-12-09 18:34:53,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:53,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707748465] [2020-12-09 18:34:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:53,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 18:34:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:53,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:53,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707748465] [2020-12-09 18:34:53,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:53,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:34:53,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669668581] [2020-12-09 18:34:53,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:34:53,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:53,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:34:53,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:34:53,919 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-12-09 18:34:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:53,947 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-12-09 18:34:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:34:53,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 18:34:53,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:53,948 INFO L225 Difference]: With dead ends: 16 [2020-12-09 18:34:53,949 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 18:34:53,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:34:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 18:34:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 18:34:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 18:34:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-09 18:34:53,952 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-12-09 18:34:53,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:53,952 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-09 18:34:53,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:34:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-09 18:34:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 18:34:53,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:53,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:54,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,155 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:54,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:54,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812681, now seen corresponding path program 1 times [2020-12-09 18:34:54,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:54,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892264534] [2020-12-09 18:34:54,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:54,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 18:34:54,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:54,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:54,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892264534] [2020-12-09 18:34:54,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:54,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:34:54,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066103629] [2020-12-09 18:34:54,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 18:34:54,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:54,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 18:34:54,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 18:34:54,254 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2020-12-09 18:34:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:54,269 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-09 18:34:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 18:34:54,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-09 18:34:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:54,270 INFO L225 Difference]: With dead ends: 22 [2020-12-09 18:34:54,270 INFO L226 Difference]: Without dead ends: 21 [2020-12-09 18:34:54,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 18:34:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-09 18:34:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2020-12-09 18:34:54,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 18:34:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-09 18:34:54,273 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-09 18:34:54,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:54,274 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-09 18:34:54,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 18:34:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-09 18:34:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 18:34:54,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:54,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:54,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,477 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2020-12-09 18:34:54,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:54,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716625206] [2020-12-09 18:34:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:54,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:34:54,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:54,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:54,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716625206] [2020-12-09 18:34:54,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:54,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:34:54,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815815486] [2020-12-09 18:34:54,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:34:54,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:34:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:34:54,618 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-12-09 18:34:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:54,690 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-12-09 18:34:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:34:54,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-09 18:34:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:54,694 INFO L225 Difference]: With dead ends: 22 [2020-12-09 18:34:54,694 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 18:34:54,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:34:54,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 18:34:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2020-12-09 18:34:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 18:34:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-09 18:34:54,696 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2020-12-09 18:34:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:54,697 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-09 18:34:54,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:34:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-09 18:34:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 18:34:54,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:54,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:54,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,899 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:54,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:54,901 INFO L82 PathProgramCache]: Analyzing trace with hash 176610313, now seen corresponding path program 1 times [2020-12-09 18:34:54,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:54,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282268916] [2020-12-09 18:34:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:54,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:34:54,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:55,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:55,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282268916] [2020-12-09 18:34:55,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:55,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:34:55,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545764696] [2020-12-09 18:34:55,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:34:55,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:55,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:34:55,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:34:55,016 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-12-09 18:34:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:55,050 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-12-09 18:34:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:34:55,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 18:34:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:55,051 INFO L225 Difference]: With dead ends: 15 [2020-12-09 18:34:55,051 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 18:34:55,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:34:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 18:34:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-09 18:34:55,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 18:34:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-09 18:34:55,053 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2020-12-09 18:34:55,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:55,053 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-09 18:34:55,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:34:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-09 18:34:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 18:34:55,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:55,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:55,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 18:34:55,254 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:55,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:55,254 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2020-12-09 18:34:55,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:55,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828819828] [2020-12-09 18:34:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:55,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 18:34:55,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:55,325 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-09 18:34:55,326 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:34:55,328 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:34:55,329 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 18:34:55,329 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 18:34:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:55,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:55,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828819828] [2020-12-09 18:34:55,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:55,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:34:55,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918382507] [2020-12-09 18:34:55,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:34:55,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:55,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:34:55,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:34:55,350 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2020-12-09 18:34:55,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:55,389 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-09 18:34:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:34:55,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 18:34:55,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:55,389 INFO L225 Difference]: With dead ends: 11 [2020-12-09 18:34:55,389 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 18:34:55,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:34:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 18:34:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 18:34:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 18:34:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-12-09 18:34:55,391 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2020-12-09 18:34:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:55,391 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-12-09 18:34:55,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:34:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-09 18:34:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:34:55,391 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:34:55,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:34:55,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 18:34:55,593 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 18:34:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:34:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832815, now seen corresponding path program 1 times [2020-12-09 18:34:55,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:34:55,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420120670] [2020-12-09 18:34:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 18:34:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:34:55,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 18:34:55,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:34:55,657 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 18:34:55,657 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-09 18:34:55,660 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 18:34:55,673 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2020-12-09 18:34:55,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:34:55,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 18:34:55,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2020-12-09 18:34:55,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:34:55,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:34:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:34:57,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:34:57,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420120670] [2020-12-09 18:34:57,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:34:57,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:34:57,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477555825] [2020-12-09 18:34:57,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 18:34:57,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:34:57,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 18:34:57,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=1, NotChecked=0, Total=56 [2020-12-09 18:34:57,809 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 8 states. [2020-12-09 18:34:59,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:34:59,941 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-12-09 18:34:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 18:34:59,942 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-09 18:34:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:34:59,942 INFO L225 Difference]: With dead ends: 10 [2020-12-09 18:34:59,942 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:34:59,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2020-12-09 18:34:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:34:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:34:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:34:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:34:59,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 18:34:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:34:59,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:34:59,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 18:34:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:34:59,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:35:00,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 18:35:00,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:35:00 BoogieIcfgContainer [2020-12-09 18:35:00,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:35:00,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:35:00,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:35:00,152 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:35:00,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:34:53" (3/4) ... [2020-12-09 18:35:00,154 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 18:35:00,160 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 18:35:00,160 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 18:35:00,161 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:35:00,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0759d1c4-2458-43d3-bab1-21b1dbd39a8b/bin/utaipan/witness.graphml [2020-12-09 18:35:00,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:35:00,187 INFO L168 Benchmark]: Toolchain (without parser) took 7725.20 ms. Allocated memory was 50.3 MB in the beginning and 75.5 MB in the end (delta: 25.2 MB). Free memory was 26.6 MB in the beginning and 31.0 MB in the end (delta: -4.3 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,188 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.8 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:35:00,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.64 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 32.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 62.9 MB. Free memory was 32.7 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,189 INFO L168 Benchmark]: Boogie Preprocessor took 17.37 ms. Allocated memory is still 62.9 MB. Free memory was 30.7 MB in the beginning and 29.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,189 INFO L168 Benchmark]: RCFGBuilder took 220.68 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 34.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,189 INFO L168 Benchmark]: TraceAbstraction took 6972.91 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 33.8 MB in the end (delta: 258.8 kB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,190 INFO L168 Benchmark]: Witness Printer took 35.19 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 31.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:35:00,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.8 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.64 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.4 MB in the beginning and 32.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 62.9 MB. Free memory was 32.7 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.37 ms. Allocated memory is still 62.9 MB. Free memory was 30.7 MB in the beginning and 29.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 220.68 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 34.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6972.91 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 34.1 MB in the beginning and 33.8 MB in the end (delta: 258.8 kB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 35.19 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 31.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 119 SDslu, 87 SDs, 0 SdLazy, 136 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 9 QuantifiedInterpolants, 2425 SizeOfPredicates, 21 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...