./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 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/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_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs --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 ef75293aeb91e37969e4557310245e0c38a479cd ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/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_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs --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 ef75293aeb91e37969e4557310245e0c38a479cd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:30:44,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:44,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:44,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:44,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:44,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:44,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:44,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:44,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:44,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:44,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:44,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:44,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:44,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:44,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:44,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:44,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:44,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:44,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:44,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:44,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:44,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:44,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:44,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:44,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:44,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:44,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:44,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:44,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:44,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:44,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:44,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:44,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:44,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:44,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:44,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:44,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:44,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:44,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:44,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:44,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:44,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-16 02:30:45,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:45,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:45,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:45,039 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:45,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:45,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:45,040 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:30:45,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:45,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:45,040 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:30:45,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:30:45,041 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:45,041 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:30:45,041 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:30:45,042 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:30:45,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 02:30:45,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 02:30:45,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:45,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:45,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:30:45,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:30:45,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:45,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:45,044 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 02:30:45,045 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 02:30:45,045 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 02:30:45,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:45,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:45,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:45,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:45,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:45,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:45,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:45,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:45,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:45,047 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:30:45,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:30:45,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:45,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:45,049 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_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2021-10-16 02:30:45,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:45,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:45,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:45,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:45,373 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:45,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-10-16 02:30:45,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/ce09b4b33/1ea97cb77b4145aab2095062bc29ae10/FLAG4403c78bb [2021-10-16 02:30:46,261 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:46,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-10-16 02:30:46,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/ce09b4b33/1ea97cb77b4145aab2095062bc29ae10/FLAG4403c78bb [2021-10-16 02:30:46,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/ce09b4b33/1ea97cb77b4145aab2095062bc29ae10 [2021-10-16 02:30:46,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:46,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:46,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:46,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:46,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:46,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a691381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:46,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:47,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:47,049 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) [2021-10-16 02:30:47,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@309ab52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:47, skipping insertion in model container [2021-10-16 02:30:47,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:47,051 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:30:47,054 INFO L168 Benchmark]: Toolchain (without parser) took 552.77 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 63.6 MB in the beginning and 93.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,055 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:47,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.93 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 63.5 MB in the beginning and 94.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 534.93 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 63.5 MB in the beginning and 94.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:30:49,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:49,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:49,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:49,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:49,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:49,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:49,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:49,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:49,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:49,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:49,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:49,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:49,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:49,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:50,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:50,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:50,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:50,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:50,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:50,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:50,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:50,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:50,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:50,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:50,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:50,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:50,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:50,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:50,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:50,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:50,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:50,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:50,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:50,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:50,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:50,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:50,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:50,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:50,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:50,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:50,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-16 02:30:50,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:50,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:50,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:50,122 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:50,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:50,123 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:50,123 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:50,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:50,124 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:50,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 02:30:50,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 02:30:50,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:50,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:50,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:30:50,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:30:50,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:50,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:50,129 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 02:30:50,129 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 02:30:50,130 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 02:30:50,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:50,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:50,130 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:30:50,131 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:30:50,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:50,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:50,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:50,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:30:50,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:50,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:50,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:50,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:50,134 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:30:50,134 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:30:50,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:50,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:50,135 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_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2021-10-16 02:30:50,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:50,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:50,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:50,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:50,617 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:50,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-10-16 02:30:50,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/c587610df/28062478d69b4b19b35b64cd24b27cdd/FLAG01f1417ec [2021-10-16 02:30:51,390 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:51,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2021-10-16 02:30:51,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/c587610df/28062478d69b4b19b35b64cd24b27cdd/FLAG01f1417ec [2021-10-16 02:30:51,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/data/c587610df/28062478d69b4b19b35b64cd24b27cdd [2021-10-16 02:30:51,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:51,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:51,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:51,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:51,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:51,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:51" (1/1) ... [2021-10-16 02:30:51,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d8c4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:51, skipping insertion in model container [2021-10-16 02:30:51,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:51" (1/1) ... [2021-10-16 02:30:51,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:51,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:52,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:52,147 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:30:52,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:52,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:52,247 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:52,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:52,372 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:52,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52 WrapperNode [2021-10-16 02:30:52,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:52,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:52,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:52,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:52,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:52,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:52,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:52,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:52,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:52,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:52,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:52,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:52,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:52,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:52,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:52,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:30:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:30:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:30:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:53,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:30:53,064 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-16 02:30:53,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53 BoogieIcfgContainer [2021-10-16 02:30:53,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:30:53,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:30:53,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:30:53,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:30:53,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:51" (1/3) ... [2021-10-16 02:30:53,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2811a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:53, skipping insertion in model container [2021-10-16 02:30:53,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (2/3) ... [2021-10-16 02:30:53,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2811a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:53, skipping insertion in model container [2021-10-16 02:30:53,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53" (3/3) ... [2021-10-16 02:30:53,076 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2021-10-16 02:30:53,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:30:53,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-16 02:30:53,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:30:53,163 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, mConcurrency=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 [2021-10-16 02:30:53,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-16 02:30:53,182 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) [2021-10-16 02:30:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:30:53,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:53,205 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:30:53,206 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:53,214 INFO L82 PathProgramCache]: Analyzing trace with hash 925656, now seen corresponding path program 1 times [2021-10-16 02:30:53,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:53,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071528172] [2021-10-16 02:30:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:53,233 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:53,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:53,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:30:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:53,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:30:53,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:53,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:53,482 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:53,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071528172] [2021-10-16 02:30:53,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071528172] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:53,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:53,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:30:53,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898010240] [2021-10-16 02:30:53,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:30:53,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:53,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:30:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:53,534 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) [2021-10-16 02:30:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:53,607 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-10-16 02:30:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:30:53,610 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 [2021-10-16 02:30:53,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:53,621 INFO L225 Difference]: With dead ends: 31 [2021-10-16 02:30:53,622 INFO L226 Difference]: Without dead ends: 28 [2021-10-16 02:30:53,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-16 02:30:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-16 02:30:53,658 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) [2021-10-16 02:30:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-10-16 02:30:53,661 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 4 [2021-10-16 02:30:53,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:53,662 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-10-16 02:30:53,662 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) [2021-10-16 02:30:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-10-16 02:30:53,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:30:53,663 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:53,664 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:30:53,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:53,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:53,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:53,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:53,881 INFO L82 PathProgramCache]: Analyzing trace with hash 28695828, now seen corresponding path program 1 times [2021-10-16 02:30:53,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:53,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267351410] [2021-10-16 02:30:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:53,888 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:53,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:53,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:53,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:30:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:53,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:30:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:54,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:54,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:54,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267351410] [2021-10-16 02:30:54,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267351410] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:54,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:54,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:30:54,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428943464] [2021-10-16 02:30:54,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:30:54,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:30:54,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:54,035 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) [2021-10-16 02:30:54,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:54,053 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-10-16 02:30:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:30:54,054 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 [2021-10-16 02:30:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:54,055 INFO L225 Difference]: With dead ends: 28 [2021-10-16 02:30:54,055 INFO L226 Difference]: Without dead ends: 28 [2021-10-16 02:30:54,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-16 02:30:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-16 02:30:54,060 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) [2021-10-16 02:30:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-10-16 02:30:54,061 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2021-10-16 02:30:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:54,062 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-10-16 02:30:54,062 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) [2021-10-16 02:30:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-10-16 02:30:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:30:54,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:54,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:54,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:54,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:54,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:54,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:54,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1806910252, now seen corresponding path program 1 times [2021-10-16 02:30:54,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:54,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979073281] [2021-10-16 02:30:54,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:54,286 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:54,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:54,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:30:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:54,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:30:54,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:54,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:54,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:54,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979073281] [2021-10-16 02:30:54,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979073281] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:54,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:54,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:30:54,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928330752] [2021-10-16 02:30:54,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:30:54,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:54,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:30:54,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:54,530 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) [2021-10-16 02:30:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:54,588 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-10-16 02:30:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:30:54,589 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 [2021-10-16 02:30:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:54,590 INFO L225 Difference]: With dead ends: 42 [2021-10-16 02:30:54,591 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:30:54,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:30:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-10-16 02:30:54,597 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) [2021-10-16 02:30:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-10-16 02:30:54,598 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2021-10-16 02:30:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:54,599 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-10-16 02:30:54,599 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) [2021-10-16 02:30:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-10-16 02:30:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:30:54,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:54,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:54,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:54,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:54,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:54,815 INFO L82 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2021-10-16 02:30:54,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:54,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321621992] [2021-10-16 02:30:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:54,817 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:54,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:54,818 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:54,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:30:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:54,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:30:54,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:55,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:55,073 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:55,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321621992] [2021-10-16 02:30:55,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321621992] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:55,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:55,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-16 02:30:55,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377088947] [2021-10-16 02:30:55,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:30:55,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:55,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:30:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:30:55,077 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) [2021-10-16 02:30:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:55,231 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-10-16 02:30:55,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:30:55,235 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 [2021-10-16 02:30:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:55,237 INFO L225 Difference]: With dead ends: 64 [2021-10-16 02:30:55,237 INFO L226 Difference]: Without dead ends: 64 [2021-10-16 02:30:55,238 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 66.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:30:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-16 02:30:55,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 31. [2021-10-16 02:30:55,244 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) [2021-10-16 02:30:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-16 02:30:55,245 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 8 [2021-10-16 02:30:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:55,245 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-16 02:30:55,246 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) [2021-10-16 02:30:55,246 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-16 02:30:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:30:55,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:55,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:55,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:55,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:55,448 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:55,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:55,449 INFO L82 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2021-10-16 02:30:55,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:55,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113410455] [2021-10-16 02:30:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:55,450 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:55,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:55,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:55,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:30:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:55,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:30:55,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:55,660 INFO L354 Elim1Store]: treesize reduction 10, result has 50.0 percent of original size [2021-10-16 02:30:55,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 16 [2021-10-16 02:30:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:55,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:55,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:55,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113410455] [2021-10-16 02:30:55,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113410455] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:55,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:55,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:30:55,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674705220] [2021-10-16 02:30:55,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:30:55,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:55,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:30:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:30:55,779 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) [2021-10-16 02:30:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:55,909 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-10-16 02:30:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:30:55,912 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 [2021-10-16 02:30:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:55,913 INFO L225 Difference]: With dead ends: 38 [2021-10-16 02:30:55,913 INFO L226 Difference]: Without dead ends: 38 [2021-10-16 02:30:55,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:30:55,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-16 02:30:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-10-16 02:30:55,918 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) [2021-10-16 02:30:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-10-16 02:30:55,919 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2021-10-16 02:30:55,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:55,919 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-10-16 02:30:55,920 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) [2021-10-16 02:30:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-10-16 02:30:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:30:55,920 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:55,921 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:55,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:56,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:56,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:56,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:56,122 INFO L82 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2021-10-16 02:30:56,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:56,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821818843] [2021-10-16 02:30:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:56,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:56,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:56,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:30:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:56,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:30:56,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:56,298 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 [2021-10-16 02:30:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:56,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:56,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:56,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821818843] [2021-10-16 02:30:56,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821818843] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:56,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:56,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-16 02:30:56,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104663637] [2021-10-16 02:30:56,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:30:56,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:56,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:30:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:30:56,989 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2021-10-16 02:30:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:58,995 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2021-10-16 02:30:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 02:30:58,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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 8 [2021-10-16 02:30:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:58,998 INFO L225 Difference]: With dead ends: 100 [2021-10-16 02:30:58,998 INFO L226 Difference]: Without dead ends: 100 [2021-10-16 02:30:58,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1531.9ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:30:59,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-16 02:30:59,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 43. [2021-10-16 02:30:59,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 42 states have internal predecessors, (51), 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) [2021-10-16 02:30:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2021-10-16 02:30:59,009 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 8 [2021-10-16 02:30:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:59,009 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2021-10-16 02:30:59,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2021-10-16 02:30:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2021-10-16 02:30:59,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:30:59,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:59,010 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:59,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-16 02:30:59,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:59,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:59,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1274213166, now seen corresponding path program 1 times [2021-10-16 02:30:59,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:59,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042403571] [2021-10-16 02:30:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:59,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:59,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:59,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:59,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:30:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:59,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:30:59,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:59,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:59,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:59,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042403571] [2021-10-16 02:30:59,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042403571] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:59,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:59,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:30:59,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341547150] [2021-10-16 02:30:59,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:30:59,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:30:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:59,367 INFO L87 Difference]: Start difference. First operand 43 states and 51 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) [2021-10-16 02:30:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:59,374 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2021-10-16 02:30:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:30:59,375 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 [2021-10-16 02:30:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:59,377 INFO L225 Difference]: With dead ends: 42 [2021-10-16 02:30:59,377 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:30:59,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:30:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-16 02:30:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 41 states have internal predecessors, (50), 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) [2021-10-16 02:30:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-10-16 02:30:59,383 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 9 [2021-10-16 02:30:59,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:59,384 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-10-16 02:30:59,384 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) [2021-10-16 02:30:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-10-16 02:30:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:30:59,385 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:59,385 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:59,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:59,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:59,607 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:30:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:59,607 INFO L82 PathProgramCache]: Analyzing trace with hash 845902566, now seen corresponding path program 1 times [2021-10-16 02:30:59,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:59,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219888828] [2021-10-16 02:30:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:59,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:59,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:59,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:59,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:30:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:59,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:30:59,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:30:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:59,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:30:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:59,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:30:59,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219888828] [2021-10-16 02:30:59,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219888828] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:59,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:59,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:30:59,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304510362] [2021-10-16 02:30:59,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:30:59,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:30:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:30:59,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:59,772 INFO L87 Difference]: Start difference. First operand 42 states and 50 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) [2021-10-16 02:30:59,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:59,805 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2021-10-16 02:30:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:30:59,805 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 [2021-10-16 02:30:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:59,806 INFO L225 Difference]: With dead ends: 41 [2021-10-16 02:30:59,806 INFO L226 Difference]: Without dead ends: 41 [2021-10-16 02:30:59,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:30:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-16 02:30:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-16 02:30:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 40 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) [2021-10-16 02:30:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-10-16 02:30:59,811 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 10 [2021-10-16 02:30:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-10-16 02:30:59,811 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) [2021-10-16 02:30:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-10-16 02:30:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:30:59,812 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:59,812 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:59,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:00,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,013 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 453175856, now seen corresponding path program 1 times [2021-10-16 02:31:00,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:00,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453078414] [2021-10-16 02:31:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:00,014 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:00,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:00,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:31:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:00,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:31:00,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:00,106 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 [2021-10-16 02:31:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:00,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:00,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:00,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453078414] [2021-10-16 02:31:00,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453078414] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:00,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:00,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:31:00,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63408365] [2021-10-16 02:31:00,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:31:00,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:31:00,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:31:00,197 INFO L87 Difference]: Start difference. First operand 41 states and 49 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) [2021-10-16 02:31:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:00,237 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2021-10-16 02:31:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:31:00,238 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 [2021-10-16 02:31:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:00,239 INFO L225 Difference]: With dead ends: 46 [2021-10-16 02:31:00,239 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 02:31:00,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:31:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 02:31:00,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-16 02:31:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 45 states have internal predecessors, (54), 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) [2021-10-16 02:31:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-10-16 02:31:00,246 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 11 [2021-10-16 02:31:00,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:00,247 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-16 02:31:00,247 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) [2021-10-16 02:31:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2021-10-16 02:31:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 02:31:00,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:00,248 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:00,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:00,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,449 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:00,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1163549737, now seen corresponding path program 1 times [2021-10-16 02:31:00,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:00,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812753161] [2021-10-16 02:31:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:00,449 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:00,450 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:00,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:31:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:00,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:31:00,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:00,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:00,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:00,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812753161] [2021-10-16 02:31:00,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812753161] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:00,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:00,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:31:00,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796063476] [2021-10-16 02:31:00,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:31:00,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:00,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:31:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:31:00,659 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-10-16 02:31:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:00,686 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2021-10-16 02:31:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:31:00,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 [2021-10-16 02:31:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:00,688 INFO L225 Difference]: With dead ends: 40 [2021-10-16 02:31:00,688 INFO L226 Difference]: Without dead ends: 40 [2021-10-16 02:31:00,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:31:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-16 02:31:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-16 02:31:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 39 states have internal predecessors, (47), 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) [2021-10-16 02:31:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2021-10-16 02:31:00,694 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 12 [2021-10-16 02:31:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:00,694 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2021-10-16 02:31:00,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-10-16 02:31:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2021-10-16 02:31:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:31:00,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:00,695 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:00,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:00,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,904 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:00,904 INFO L82 PathProgramCache]: Analyzing trace with hash 702945990, now seen corresponding path program 1 times [2021-10-16 02:31:00,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:00,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631972834] [2021-10-16 02:31:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:00,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:00,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:00,906 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:00,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:31:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:00,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:31:00,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:01,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:01,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:01,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631972834] [2021-10-16 02:31:01,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631972834] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:01,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:01,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 7 [2021-10-16 02:31:01,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719076157] [2021-10-16 02:31:01,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:31:01,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:01,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:31:01,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:31:01,417 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-16 02:31:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:01,519 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-10-16 02:31:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:31:01,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 [2021-10-16 02:31:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:01,521 INFO L225 Difference]: With dead ends: 39 [2021-10-16 02:31:01,521 INFO L226 Difference]: Without dead ends: 39 [2021-10-16 02:31:01,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 112.5ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:31:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-16 02:31:01,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-16 02:31:01,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 38 states have internal predecessors, (46), 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) [2021-10-16 02:31:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-10-16 02:31:01,525 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 13 [2021-10-16 02:31:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:01,526 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-10-16 02:31:01,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-16 02:31:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-10-16 02:31:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:31:01,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:01,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:01,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:01,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:01,735 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:01,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:01,735 INFO L82 PathProgramCache]: Analyzing trace with hash -559806010, now seen corresponding path program 1 times [2021-10-16 02:31:01,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:01,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109149373] [2021-10-16 02:31:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:01,736 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:01,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:01,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:31:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:01,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:31:01,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:01,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:01,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:01,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109149373] [2021-10-16 02:31:01,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109149373] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:01,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:01,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-16 02:31:01,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99613364] [2021-10-16 02:31:01,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:31:01,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:01,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:31:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:31:01,935 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-16 02:31:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:01,981 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-10-16 02:31:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:31:01,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-10-16 02:31:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:01,982 INFO L225 Difference]: With dead ends: 39 [2021-10-16 02:31:01,982 INFO L226 Difference]: Without dead ends: 39 [2021-10-16 02:31:01,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:31:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-16 02:31:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-16 02:31:01,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 38 states have internal predecessors, (44), 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) [2021-10-16 02:31:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2021-10-16 02:31:01,986 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 16 [2021-10-16 02:31:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:01,986 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2021-10-16 02:31:01,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-16 02:31:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2021-10-16 02:31:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 02:31:01,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:01,987 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:02,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:02,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:02,188 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:02,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:02,188 INFO L82 PathProgramCache]: Analyzing trace with hash 373684842, now seen corresponding path program 1 times [2021-10-16 02:31:02,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:02,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116015311] [2021-10-16 02:31:02,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:02,189 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:02,190 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:02,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:31:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:02,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:31:02,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:02,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:02,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:02,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116015311] [2021-10-16 02:31:02,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116015311] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:02,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:02,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-16 02:31:02,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260644209] [2021-10-16 02:31:02,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:31:02,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:31:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:31:02,475 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-16 02:31:02,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:02,628 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2021-10-16 02:31:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:31:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2021-10-16 02:31:02,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:02,630 INFO L225 Difference]: With dead ends: 49 [2021-10-16 02:31:02,630 INFO L226 Difference]: Without dead ends: 49 [2021-10-16 02:31:02,631 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:31:02,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-16 02:31:02,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39. [2021-10-16 02:31:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 38 states have internal predecessors, (41), 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) [2021-10-16 02:31:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-16 02:31:02,634 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 17 [2021-10-16 02:31:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:02,635 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-16 02:31:02,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-16 02:31:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-16 02:31:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 02:31:02,636 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:02,636 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:02,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:02,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:02,836 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:02,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:02,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2146275092, now seen corresponding path program 1 times [2021-10-16 02:31:02,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:02,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994158528] [2021-10-16 02:31:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:02,838 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:02,839 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 02:31:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:03,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:31:03,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:31:03,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:31:03,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:03,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994158528] [2021-10-16 02:31:03,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994158528] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:03,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:03,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:31:03,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4325210] [2021-10-16 02:31:03,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:31:03,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:03,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:31:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:31:03,145 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-16 02:31:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:03,177 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-10-16 02:31:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:31:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2021-10-16 02:31:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:03,179 INFO L225 Difference]: With dead ends: 38 [2021-10-16 02:31:03,179 INFO L226 Difference]: Without dead ends: 38 [2021-10-16 02:31:03,180 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:31:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-16 02:31:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-10-16 02:31:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 35 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) [2021-10-16 02:31:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-16 02:31:03,183 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 17 [2021-10-16 02:31:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:03,183 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-16 02:31:03,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-16 02:31:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-10-16 02:31:03,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 02:31:03,185 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:03,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:03,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-16 02:31:03,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:03,406 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2021-10-16 02:31:03,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:03,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1949553038, now seen corresponding path program 1 times [2021-10-16 02:31:03,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:03,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628428907] [2021-10-16 02:31:03,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:03,407 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:03,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:03,409 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:03,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:31:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:31:03,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:31:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:31:03,658 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:31:03,659 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:31:03,659 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-16 02:31:03,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-16 02:31:03,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:31:03,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 02:31:03,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:31:03,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:03,870 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:31:03,880 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,881 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,881 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,882 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,882 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,882 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,883 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,883 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,883 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,884 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,884 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,884 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,884 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,885 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,885 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,885 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,886 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,886 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,886 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,886 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,887 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,887 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,887 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,888 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,888 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,888 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,889 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,889 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,889 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,890 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,890 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,890 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,890 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,891 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,891 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,891 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,892 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,892 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,892 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,892 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,893 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,893 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,894 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,894 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,894 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,894 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,895 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,895 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,895 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,896 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,896 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,896 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,896 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,897 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,897 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,897 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,898 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,898 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:31:03 BoogieIcfgContainer [2021-10-16 02:31:03,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:31:03,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:31:03,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:31:03,923 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:31:03,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53" (3/4) ... [2021-10-16 02:31:03,925 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:31:03,927 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,928 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,928 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,928 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,929 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,929 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,929 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,929 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,929 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,930 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,930 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,930 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,930 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,931 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,931 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,931 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,931 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,932 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,932 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,932 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,932 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,933 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,933 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,933 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,933 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,934 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,934 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,934 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,934 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,935 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,935 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,935 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,935 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,935 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,936 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,936 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,936 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,936 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,937 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,937 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,937 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,937 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,937 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,938 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,938 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,938 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,938 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,939 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,939 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,939 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,939 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,940 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,940 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,940 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,940 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,941 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:03,941 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2021-10-16 02:31:03,941 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2021-10-16 02:31:04,000 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:31:04,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:31:04,005 INFO L168 Benchmark]: Toolchain (without parser) took 12358.35 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 46.0 MB in the beginning and 38.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,005 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory is still 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:31:04,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.21 ms. Allocated memory is still 69.2 MB. Free memory was 45.8 MB in the beginning and 42.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.93 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 41.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,006 INFO L168 Benchmark]: Boogie Preprocessor took 60.56 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 39.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,008 INFO L168 Benchmark]: RCFGBuilder took 546.20 ms. Allocated memory is still 69.2 MB. Free memory was 39.5 MB in the beginning and 48.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,008 INFO L168 Benchmark]: TraceAbstraction took 10853.50 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 48.5 MB in the beginning and 43.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,009 INFO L168 Benchmark]: Witness Printer took 81.34 ms. Allocated memory is still 83.9 MB. Free memory was 43.7 MB in the beginning and 38.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:31:04,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory is still 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 725.21 ms. Allocated memory is still 69.2 MB. Free memory was 45.8 MB in the beginning and 42.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.93 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 41.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.56 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 39.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 546.20 ms. Allocated memory is still 69.2 MB. Free memory was 39.5 MB in the beginning and 48.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10853.50 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 48.5 MB in the beginning and 43.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Witness Printer took 81.34 ms. Allocated memory is still 83.9 MB. Free memory was 43.7 MB in the beginning and 38.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [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: 10718.1ms, OverallIterations: 15, TraceHistogramMax: 2, EmptinessCheckTime: 35.8ms, AutomataDifference: 2991.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 332 SDtfs, 724 SDslu, 298 SDs, 0 SdLazy, 346 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1350.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1903.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=9, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 87.3ms AutomataMinimizationTime, 14 MinimizatonAttempts, 123 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 155.6ms SsaConstructionTime, 339.8ms SatisfiabilityAnalysisTime, 2623.6ms InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 262 ConstructedInterpolants, 10 QuantifiedInterpolants, 875 SizeOfPredicates, 19 NumberOfNonLiveVariables, 723 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 32/32 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! [2021-10-16 02:31:04,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dd302a5-dc50-40d3-82d6-89af28326373/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...