./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7 --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 a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:56:41,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:56:41,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:56:41,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:56:41,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:56:41,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:56:41,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:56:41,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:56:41,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:56:41,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:56:41,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:56:41,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:56:41,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:56:41,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:56:41,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:56:41,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:56:41,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:56:41,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:56:41,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:56:41,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:56:41,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:56:41,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:56:41,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:56:41,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:56:41,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:56:41,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:56:41,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:56:41,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:56:41,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:56:41,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:56:41,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:56:41,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:56:41,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:56:41,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:56:41,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:56:41,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:56:41,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:56:41,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:56:41,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:56:41,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:56:41,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:56:42,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 17:56:42,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:56:42,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:56:42,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:56:42,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:56:42,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:56:42,027 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:56:42,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:56:42,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:56:42,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:56:42,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:56:42,028 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:56:42,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:56:42,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:56:42,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:56:42,029 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:56:42,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:56:42,029 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:56:42,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:56:42,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 17:56:42,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 17:56:42,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:56:42,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:56:42,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 17:56:42,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:56:42,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:56:42,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:56:42,032 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 17:56:42,032 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 17:56:42,032 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 17:56:42,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:56:42,033 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 17:56:42,033 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:56:42,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:56:42,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:56:42,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:56:42,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:56:42,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:56:42,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:56:42,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:56:42,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:56:42,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:56:42,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:56:42,035 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_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf [2021-11-25 17:56:42,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:56:42,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:56:42,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:56:42,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:56:42,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:56:42,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-11-25 17:56:42,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e43affd78/f4e99bef548f45dfbb45c2f6c3eda177/FLAGa77edb61e [2021-11-25 17:56:42,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:56:42,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-11-25 17:56:42,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e43affd78/f4e99bef548f45dfbb45c2f6c3eda177/FLAGa77edb61e [2021-11-25 17:56:43,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e43affd78/f4e99bef548f45dfbb45c2f6c3eda177 [2021-11-25 17:56:43,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:56:43,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:56:43,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:56:43,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:56:43,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:56:43,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:43" (1/1) ... [2021-11-25 17:56:43,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7483d507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:43, skipping insertion in model container [2021-11-25 17:56:43,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:43" (1/1) ... [2021-11-25 17:56:43,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:56:43,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:56:43,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:56:43,653 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) [2021-11-25 17:56:43,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f8bb50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:43, skipping insertion in model container [2021-11-25 17:56:43,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:56:43,654 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-25 17:56:43,658 INFO L158 Benchmark]: Toolchain (without parser) took 410.77ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.3MB in the beginning and 93.9MB in the end (delta: -37.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 17:56:43,659 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:56:43,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.84ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.1MB in the beginning and 93.9MB in the end (delta: -37.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 17:56:43,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.84ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 56.1MB in the beginning and 93.9MB in the end (delta: -37.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7 --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 a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:56:45,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:56:45,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:56:45,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:56:45,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:56:45,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:56:45,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:56:45,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:56:45,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:56:45,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:56:45,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:56:45,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:56:45,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:56:45,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:56:45,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:56:45,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:56:45,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:56:45,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:56:45,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:56:45,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:56:45,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:56:45,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:56:45,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:56:45,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:56:45,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:56:45,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:56:45,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:56:45,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:56:45,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:56:45,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:56:45,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:56:45,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:56:45,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:56:45,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:56:45,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:56:45,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:56:45,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:56:45,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:56:45,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:56:45,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:56:45,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:56:45,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-25 17:56:45,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:56:45,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:56:45,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:56:45,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:56:45,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:56:45,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:56:45,954 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:56:45,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:56:45,954 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:56:45,955 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:56:45,955 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:56:45,955 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:56:45,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 17:56:45,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 17:56:45,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:56:45,957 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:56:45,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 17:56:45,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:56:45,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:56:45,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:56:45,958 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 17:56:45,958 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 17:56:45,958 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 17:56:45,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:56:45,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 17:56:45,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 17:56:45,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 17:56:45,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:56:45,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:56:45,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:56:45,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 17:56:45,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:56:45,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:56:45,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:56:45,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:56:45,961 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 17:56:45,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 17:56:45,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:56:45,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:56:45,962 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_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf [2021-11-25 17:56:46,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:56:46,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:56:46,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:56:46,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:56:46,374 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:56:46,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-11-25 17:56:46,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e8796edc6/ee96f63586b749d4aa338e10d1658e40/FLAG80f23a659 [2021-11-25 17:56:46,971 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:56:46,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-11-25 17:56:46,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e8796edc6/ee96f63586b749d4aa338e10d1658e40/FLAG80f23a659 [2021-11-25 17:56:47,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/data/e8796edc6/ee96f63586b749d4aa338e10d1658e40 [2021-11-25 17:56:47,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:56:47,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:56:47,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:56:47,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:56:47,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:56:47,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26940d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47, skipping insertion in model container [2021-11-25 17:56:47,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:56:47,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:56:47,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:56:47,749 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-25 17:56:47,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:56:47,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:56:47,812 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:56:47,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:56:47,901 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:56:47,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47 WrapperNode [2021-11-25 17:56:47,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:56:47,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:56:47,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:56:47,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:56:47,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,972 INFO L137 Inliner]: procedures = 118, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2021-11-25 17:56:47,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:56:47,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:56:47,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:56:47,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:56:47,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:47,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:48,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:48,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:48,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:48,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:56:48,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:56:48,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:56:48,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:56:48,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (1/1) ... [2021-11-25 17:56:48,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:56:48,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:56:48,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:56:48,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:56:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:56:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:56:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 17:56:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:56:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:56:48,227 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:56:48,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:56:48,421 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:56:48,426 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:56:48,427 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 17:56:48,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:56:48 BoogieIcfgContainer [2021-11-25 17:56:48,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:56:48,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:56:48,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:56:48,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:56:48,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:56:47" (1/3) ... [2021-11-25 17:56:48,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681243e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:56:48, skipping insertion in model container [2021-11-25 17:56:48,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:47" (2/3) ... [2021-11-25 17:56:48,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681243e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:56:48, skipping insertion in model container [2021-11-25 17:56:48,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:56:48" (3/3) ... [2021-11-25 17:56:48,436 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2021-11-25 17:56:48,441 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:56:48,441 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-25 17:56:48,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:56:48,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:56:48,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-25 17:56:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:48,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 17:56:48,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:48,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 17:56:48,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash 925656, now seen corresponding path program 1 times [2021-11-25 17:56:48,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:48,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53599935] [2021-11-25 17:56:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:48,526 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:48,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:48,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:48,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 17:56:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:48,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:56:48,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:48,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:48,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:48,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53599935] [2021-11-25 17:56:48,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53599935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:48,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:48,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:56:48,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940649861] [2021-11-25 17:56:48,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:48,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:48,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:48,760 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:48,812 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-11-25 17:56:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:48,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 17:56:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:48,822 INFO L225 Difference]: With dead ends: 31 [2021-11-25 17:56:48,822 INFO L226 Difference]: Without dead ends: 28 [2021-11-25 17:56:48,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:48,832 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:48,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-25 17:56:48,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-25 17:56:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.631578947368421) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-11-25 17:56:48,864 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 4 [2021-11-25 17:56:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:48,864 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-11-25 17:56:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-11-25 17:56:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 17:56:48,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:48,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 17:56:48,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-25 17:56:49,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,077 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:49,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:49,078 INFO L85 PathProgramCache]: Analyzing trace with hash 28695828, now seen corresponding path program 1 times [2021-11-25 17:56:49,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:49,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628994281] [2021-11-25 17:56:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:49,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:49,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:49,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 17:56:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:49,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:56:49,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:49,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:49,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:49,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628994281] [2021-11-25 17:56:49,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628994281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:49,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:49,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:56:49,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155452786] [2021-11-25 17:56:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:49,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:49,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:49,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:49,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:49,164 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:49,182 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-11-25 17:56:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 17:56:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:49,185 INFO L225 Difference]: With dead ends: 28 [2021-11-25 17:56:49,186 INFO L226 Difference]: Without dead ends: 28 [2021-11-25 17:56:49,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:49,190 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:49,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-25 17:56:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-25 17:56:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-25 17:56:49,202 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2021-11-25 17:56:49,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:49,203 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-25 17:56:49,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-25 17:56:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 17:56:49,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:49,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:49,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:49,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,409 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910252, now seen corresponding path program 1 times [2021-11-25 17:56:49,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:49,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986895267] [2021-11-25 17:56:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:49,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:49,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:49,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 17:56:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:49,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:56:49,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:49,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:49,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:49,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986895267] [2021-11-25 17:56:49,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986895267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:49,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:49,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:56:49,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322588933] [2021-11-25 17:56:49,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:49,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:49,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:49,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:49,573 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:49,623 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-11-25 17:56:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:49,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 17:56:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:49,626 INFO L225 Difference]: With dead ends: 42 [2021-11-25 17:56:49,626 INFO L226 Difference]: Without dead ends: 42 [2021-11-25 17:56:49,627 INFO L932 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 [2021-11-25 17:56:49,630 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:49,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 45 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:49,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-25 17:56:49,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-11-25 17:56:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-11-25 17:56:49,644 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2021-11-25 17:56:49,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:49,645 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-11-25 17:56:49,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:49,645 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-11-25 17:56:49,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:56:49,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:49,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:49,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:49,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,862 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:49,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:49,863 INFO L85 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2021-11-25 17:56:49,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:49,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794734845] [2021-11-25 17:56:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:49,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:49,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:49,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:49,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 17:56:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:49,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 17:56:49,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:49,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:49,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:49,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794734845] [2021-11-25 17:56:49,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794734845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:49,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:49,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:56:49,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774944016] [2021-11-25 17:56:49,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:49,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:56:49,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:49,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:56:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:56:49,990 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:50,083 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-11-25 17:56:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:56:50,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 17:56:50,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:50,087 INFO L225 Difference]: With dead ends: 64 [2021-11-25 17:56:50,087 INFO L226 Difference]: Without dead ends: 64 [2021-11-25 17:56:50,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:56:50,091 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 105 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:50,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 77 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:50,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-25 17:56:50,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 31. [2021-11-25 17:56:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-11-25 17:56:50,106 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 8 [2021-11-25 17:56:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:50,106 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-11-25 17:56:50,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-11-25 17:56:50,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:56:50,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:50,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:50,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:50,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:50,319 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:50,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2021-11-25 17:56:50,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:50,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401383853] [2021-11-25 17:56:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:50,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:50,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:50,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:50,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 17:56:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:50,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 17:56:50,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:50,465 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-25 17:56:50,466 INFO L388 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 1 case distinctions, treesize of input 9 treesize of output 18 [2021-11-25 17:56:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:50,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:50,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:50,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401383853] [2021-11-25 17:56:50,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401383853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:50,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:50,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:56:50,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614513175] [2021-11-25 17:56:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:50,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:56:50,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:50,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:56:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:56:50,495 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:50,577 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-11-25 17:56:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:56:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 17:56:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:50,578 INFO L225 Difference]: With dead ends: 38 [2021-11-25 17:56:50,578 INFO L226 Difference]: Without dead ends: 38 [2021-11-25 17:56:50,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:56:50,579 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:50,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 44 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:56:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-25 17:56:50,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-11-25 17:56:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-11-25 17:56:50,584 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2021-11-25 17:56:50,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:50,584 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-11-25 17:56:50,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-11-25 17:56:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:56:50,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:50,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:50,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:50,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:50,794 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2021-11-25 17:56:50,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:50,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235068779] [2021-11-25 17:56:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:50,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:50,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:50,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 17:56:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:50,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 17:56:50,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:50,917 INFO L388 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 8 treesize of output 7 [2021-11-25 17:56:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:50,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:50,973 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:50,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235068779] [2021-11-25 17:56:50,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235068779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:50,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:50,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:56:50,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806885158] [2021-11-25 17:56:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:50,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:56:50,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:50,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:56:50,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:56:50,976 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:51,135 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-11-25 17:56:51,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:56:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 17:56:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:51,136 INFO L225 Difference]: With dead ends: 58 [2021-11-25 17:56:51,136 INFO L226 Difference]: Without dead ends: 58 [2021-11-25 17:56:51,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:56:51,137 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:51,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 85 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:56:51,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-25 17:56:51,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 35. [2021-11-25 17:56:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-11-25 17:56:51,142 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 8 [2021-11-25 17:56:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:51,142 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-11-25 17:56:51,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-11-25 17:56:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 17:56:51,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:51,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:51,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:51,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:51,357 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:51,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1274213166, now seen corresponding path program 1 times [2021-11-25 17:56:51,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534824621] [2021-11-25 17:56:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:51,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:51,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:51,359 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:51,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 17:56:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:51,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:56:51,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:51,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:51,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:51,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534824621] [2021-11-25 17:56:51,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534824621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:51,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:51,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:56:51,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508053733] [2021-11-25 17:56:51,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:51,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:51,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:51,437 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:51,446 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2021-11-25 17:56:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:51,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 17:56:51,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:51,449 INFO L225 Difference]: With dead ends: 34 [2021-11-25 17:56:51,449 INFO L226 Difference]: Without dead ends: 34 [2021-11-25 17:56:51,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:51,450 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:51,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:51,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-25 17:56:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-25 17:56:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 33 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2021-11-25 17:56:51,455 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 9 [2021-11-25 17:56:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:51,455 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-11-25 17:56:51,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2021-11-25 17:56:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 17:56:51,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:51,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:51,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:51,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:51,679 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:51,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:51,680 INFO L85 PathProgramCache]: Analyzing trace with hash 845902566, now seen corresponding path program 1 times [2021-11-25 17:56:51,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:51,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703853351] [2021-11-25 17:56:51,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:51,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:51,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:51,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:51,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 17:56:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:51,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:56:51,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:51,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:51,792 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:51,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703853351] [2021-11-25 17:56:51,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703853351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:51,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:51,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:56:51,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384295387] [2021-11-25 17:56:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:51,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:51,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:51,794 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:51,822 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-11-25 17:56:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 17:56:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:51,824 INFO L225 Difference]: With dead ends: 33 [2021-11-25 17:56:51,824 INFO L226 Difference]: Without dead ends: 33 [2021-11-25 17:56:51,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:51,825 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:51,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-25 17:56:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-25 17:56:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2021-11-25 17:56:51,828 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 10 [2021-11-25 17:56:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:51,829 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-11-25 17:56:51,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-11-25 17:56:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 17:56:51,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:51,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:51,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-25 17:56:52,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash 453175856, now seen corresponding path program 1 times [2021-11-25 17:56:52,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628245548] [2021-11-25 17:56:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:52,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:52,042 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:52,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-25 17:56:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:52,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:56:52,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:52,118 INFO L388 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 [2021-11-25 17:56:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:52,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:52,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:52,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628245548] [2021-11-25 17:56:52,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628245548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:52,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:52,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:56:52,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564270318] [2021-11-25 17:56:52,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:52,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:56:52,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:56:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:56:52,153 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:52,182 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-11-25 17:56:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:56:52,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 17:56:52,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:52,185 INFO L225 Difference]: With dead ends: 38 [2021-11-25 17:56:52,185 INFO L226 Difference]: Without dead ends: 38 [2021-11-25 17:56:52,186 INFO L932 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 [2021-11-25 17:56:52,188 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:52,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-25 17:56:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-25 17:56:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.303030303030303) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-11-25 17:56:52,205 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 11 [2021-11-25 17:56:52,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:52,206 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-25 17:56:52,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-11-25 17:56:52,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:56:52,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:52,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:52,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:52,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,418 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1163549737, now seen corresponding path program 1 times [2021-11-25 17:56:52,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:52,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353034542] [2021-11-25 17:56:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:52,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:52,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:52,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-25 17:56:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:52,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 17:56:52,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:52,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:52,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353034542] [2021-11-25 17:56:52,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353034542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:52,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:52,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:56:52,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624792888] [2021-11-25 17:56:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:52,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:56:52,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:56:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:56:52,551 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:52,582 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-11-25 17:56:52,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:56:52,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:56:52,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:52,584 INFO L225 Difference]: With dead ends: 32 [2021-11-25 17:56:52,584 INFO L226 Difference]: Without dead ends: 32 [2021-11-25 17:56:52,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:56:52,585 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:52,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 42 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 17:56:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-25 17:56:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-25 17:56:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-11-25 17:56:52,592 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 12 [2021-11-25 17:56:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:52,593 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-11-25 17:56:52,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-11-25 17:56:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:56:52,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:52,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:52,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:52,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,805 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:52,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash 702945990, now seen corresponding path program 1 times [2021-11-25 17:56:52,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:52,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030471081] [2021-11-25 17:56:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:52,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:52,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:52,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:52,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 17:56:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:52,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 17:56:52,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:53,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:53,155 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:53,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030471081] [2021-11-25 17:56:53,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030471081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:53,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:53,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:56:53,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229295095] [2021-11-25 17:56:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:53,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:56:53,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:53,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:56:53,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:56:53,159 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:53,163 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2021-11-25 17:56:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:56:53,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:56:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:53,165 INFO L225 Difference]: With dead ends: 41 [2021-11-25 17:56:53,165 INFO L226 Difference]: Without dead ends: 41 [2021-11-25 17:56:53,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:56:53,166 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:53,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2021-11-25 17:56:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-25 17:56:53,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-11-25 17:56:53,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.4) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-11-25 17:56:53,173 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 13 [2021-11-25 17:56:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:53,174 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-11-25 17:56:53,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2021-11-25 17:56:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:56:53,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:53,175 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:53,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:53,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:53,385 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash 702991736, now seen corresponding path program 1 times [2021-11-25 17:56:53,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:53,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786631044] [2021-11-25 17:56:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:53,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:53,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:53,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:53,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-25 17:56:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:53,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:56:53,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:53,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:56:53,505 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:53,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786631044] [2021-11-25 17:56:53,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786631044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:56:53,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:56:53,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:56:53,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051320328] [2021-11-25 17:56:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:56:53,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:56:53,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:56:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:56:53,507 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:53,616 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-11-25 17:56:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 17:56:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:56:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:53,617 INFO L225 Difference]: With dead ends: 41 [2021-11-25 17:56:53,617 INFO L226 Difference]: Without dead ends: 41 [2021-11-25 17:56:53,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-25 17:56:53,618 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 65 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:53,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 51 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:56:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-25 17:56:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2021-11-25 17:56:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-11-25 17:56:53,621 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2021-11-25 17:56:53,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:53,622 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-11-25 17:56:53,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-11-25 17:56:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:56:53,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:53,623 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:53,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:53,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:53,831 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:53,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:53,832 INFO L85 PathProgramCache]: Analyzing trace with hash 702993658, now seen corresponding path program 1 times [2021-11-25 17:56:53,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:53,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360614285] [2021-11-25 17:56:53,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:53,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:53,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:53,833 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:53,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-25 17:56:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:53,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 17:56:53,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:53,990 INFO L388 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 8 treesize of output 7 [2021-11-25 17:56:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:54,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:56:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:54,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:56:54,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360614285] [2021-11-25 17:56:54,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360614285] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:56:54,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1909658374] [2021-11-25 17:56:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:54,500 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 17:56:54,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 17:56:54,513 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 17:56:54,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-25 17:56:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:54,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 17:56:54,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:54,683 INFO L388 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 8 treesize of output 7 [2021-11-25 17:56:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:54,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:56:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:54,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1909658374] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:56:54,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162254254] [2021-11-25 17:56:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:54,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:56:54,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:56:54,826 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:56:54,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 17:56:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:56:54,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 17:56:54,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:56:54,955 INFO L388 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 8 treesize of output 7 [2021-11-25 17:56:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:54,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:56:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:56:55,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162254254] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:56:55,094 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 17:56:55,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2021-11-25 17:56:55,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102129271] [2021-11-25 17:56:55,095 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 17:56:55,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 17:56:55,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:56:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 17:56:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-25 17:56:55,096 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:56,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:56:56,852 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2021-11-25 17:56:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 17:56:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:56:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:56:56,854 INFO L225 Difference]: With dead ends: 112 [2021-11-25 17:56:56,854 INFO L226 Difference]: Without dead ends: 112 [2021-11-25 17:56:56,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-11-25 17:56:56,855 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 325 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:56:56,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 99 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:56:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-25 17:56:56,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 49. [2021-11-25 17:56:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-11-25 17:56:56,862 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 13 [2021-11-25 17:56:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:56:56,862 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-11-25 17:56:56,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:56:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-11-25 17:56:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 17:56:56,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:56:56,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:56,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-25 17:56:57,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:57,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:57,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:56:57,465 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-11-25 17:56:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:56:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1949553038, now seen corresponding path program 1 times [2021-11-25 17:56:57,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:56:57,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548646825] [2021-11-25 17:56:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:56:57,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:56:57,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:56:57,467 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:56:57,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-25 17:56:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:56:57,553 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 17:56:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:56:57,631 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-25 17:56:57,631 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 17:56:57,632 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE (8 of 9 remaining) [2021-11-25 17:56:57,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (7 of 9 remaining) [2021-11-25 17:56:57,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (6 of 9 remaining) [2021-11-25 17:56:57,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (5 of 9 remaining) [2021-11-25 17:56:57,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (4 of 9 remaining) [2021-11-25 17:56:57,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (3 of 9 remaining) [2021-11-25 17:56:57,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (2 of 9 remaining) [2021-11-25 17:56:57,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (1 of 9 remaining) [2021-11-25 17:56:57,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (0 of 9 remaining) [2021-11-25 17:56:57,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-25 17:56:57,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:56:57,852 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:56:57,855 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 17:56:57,862 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,862 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,863 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,863 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,863 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,863 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,863 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,864 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,865 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,865 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,865 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,865 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,865 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,871 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,872 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:56:57 BoogieIcfgContainer [2021-11-25 17:56:57,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 17:56:57,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 17:56:57,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 17:56:57,919 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 17:56:57,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:56:48" (3/4) ... [2021-11-25 17:56:57,925 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 17:56:57,942 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,942 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,942 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,943 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,943 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,943 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,943 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,944 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,944 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,944 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,944 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,944 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,945 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,945 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,945 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,945 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,946 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,946 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,946 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,946 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,947 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,947 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,947 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,947 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,947 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,948 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,948 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,948 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,948 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,949 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,949 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,949 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,949 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,950 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,950 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,950 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,950 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,950 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,951 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,951 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,951 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,951 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,952 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,952 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,952 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,952 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,953 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,953 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,953 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,953 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,954 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,954 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,954 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,954 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,955 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,955 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,955 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-25 17:56:57,955 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-25 17:56:57,995 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 17:56:57,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 17:56:57,996 INFO L158 Benchmark]: Toolchain (without parser) took 10730.08ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 56.1MB in the beginning and 35.7MB in the end (delta: 20.3MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,997 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:56:57,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.05ms. Allocated memory is still 75.5MB. Free memory was 55.9MB in the beginning and 47.6MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.49ms. Allocated memory is still 75.5MB. Free memory was 47.6MB in the beginning and 45.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,998 INFO L158 Benchmark]: Boogie Preprocessor took 55.30ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 44.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,998 INFO L158 Benchmark]: RCFGBuilder took 399.16ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 55.3MB in the end (delta: -11.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,999 INFO L158 Benchmark]: TraceAbstraction took 9488.45ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 54.5MB in the beginning and 42.0MB in the end (delta: 12.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2021-11-25 17:56:57,999 INFO L158 Benchmark]: Witness Printer took 76.75ms. Allocated memory is still 100.7MB. Free memory was 42.0MB in the beginning and 35.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 17:56:58,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.05ms. Allocated memory is still 75.5MB. Free memory was 55.9MB in the beginning and 47.6MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.49ms. Allocated memory is still 75.5MB. Free memory was 47.6MB in the beginning and 45.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.30ms. Allocated memory is still 75.5MB. Free memory was 45.6MB in the beginning and 44.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 399.16ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 55.3MB in the end (delta: -11.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9488.45ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 54.5MB in the beginning and 42.0MB in the end (delta: 12.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 76.75ms. Allocated memory is still 100.7MB. Free memory was 42.0MB in the beginning and 35.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 [L537] CALL expandArray(a) [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 708 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 708 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 17 IncrementalHoareTripleChecker+Unchecked, 332 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 322 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=13, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 151 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 168 ConstructedInterpolants, 10 QuantifiedInterpolants, 952 SizeOfPredicates, 25 NumberOfNonLiveVariables, 893 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 5/29 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 incorrect! [2021-11-25 17:56:58,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81308391-e68c-4a22-8256-c035990a7f6b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)