./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8 --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 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:43,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:43,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:43,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:43,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:43,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:43,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:43,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:43,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:43,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:43,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:43,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:43,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:43,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:43,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:43,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:43,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:43,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:43,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:43,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:43,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:43,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:43,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:43,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:43,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:43,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:43,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:43,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:43,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:43,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:43,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:43,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:43,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:43,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:43,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:43,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:43,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:43,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:43,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:43,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:43,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:43,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 01:08:43,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:43,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:43,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:43,378 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:43,378 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:43,378 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:43,378 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:08:43,379 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:43,379 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:43,379 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:08:43,380 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:08:43,381 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:43,381 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:08:43,381 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:08:43,382 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:08:43,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:08:43,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:08:43,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:43,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:08:43,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:08:43,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:08:43,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:08:43,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:43,385 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:08:43,385 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:08:43,385 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:08:43,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:43,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:43,388 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:08:43,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:43,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:43,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:43,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:43,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:43,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:43,390 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:08:43,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:08:43,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:43,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:43,391 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_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-11-07 01:08:43,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:43,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:43,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:43,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:43,794 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:43,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-11-07 01:08:43,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/aff1bb321/b1dd65c0a3d64b4abd8fa28f4bfad554/FLAGb0641521c [2021-11-07 01:08:44,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:44,698 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-11-07 01:08:44,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/aff1bb321/b1dd65c0a3d64b4abd8fa28f4bfad554/FLAGb0641521c [2021-11-07 01:08:45,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/aff1bb321/b1dd65c0a3d64b4abd8fa28f4bfad554 [2021-11-07 01:08:45,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:45,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:45,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:45,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:45,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:45,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:45" (1/1) ... [2021-11-07 01:08:45,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8aad5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:45, skipping insertion in model container [2021-11-07 01:08:45,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:45" (1/1) ... [2021-11-07 01:08:45,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:45,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:45,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-11-07 01:08:46,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:46,764 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:08:46,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29bb1ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:46, skipping insertion in model container [2021-11-07 01:08:46,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:46,766 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:08:46,769 INFO L168 Benchmark]: Toolchain (without parser) took 1535.76 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 61.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:46,771 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 64.8 MB in the beginning and 64.8 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:08:46,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1529.79 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 54.0 MB in the beginning and 61.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:46,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 64.8 MB in the beginning and 64.8 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1529.79 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 54.0 MB in the beginning and 61.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2976]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8 --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 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:49,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:49,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:49,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:49,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:49,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:49,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:49,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:49,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:49,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:49,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:49,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:49,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:49,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:49,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:49,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:49,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:49,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:49,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:49,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:49,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:49,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:49,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:49,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:49,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:49,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:49,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:49,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:49,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:49,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:49,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:49,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:49,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:49,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:49,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:49,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:49,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:49,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:49,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:49,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:49,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:49,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 01:08:49,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:49,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:49,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:49,416 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:49,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:49,417 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:49,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:49,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:49,417 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:49,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:08:49,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:08:49,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:49,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:08:49,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:08:49,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:08:49,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:08:49,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:49,423 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:08:49,423 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:08:49,423 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:08:49,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:49,424 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:49,424 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:08:49,424 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:08:49,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:08:49,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:49,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:49,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:08:49,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:49,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:49,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:49,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:49,427 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:08:49,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:49,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:49,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:49,428 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_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-11-07 01:08:49,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:49,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:49,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:49,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:49,917 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:49,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-11-07 01:08:50,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/4303b08e6/54006e898dee47adb2c4c3fdbc48ee61/FLAG0616c83ec [2021-11-07 01:08:50,867 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:50,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-11-07 01:08:50,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/4303b08e6/54006e898dee47adb2c4c3fdbc48ee61/FLAG0616c83ec [2021-11-07 01:08:50,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/data/4303b08e6/54006e898dee47adb2c4c3fdbc48ee61 [2021-11-07 01:08:50,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:50,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:50,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:50,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:50,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:50,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:50" (1/1) ... [2021-11-07 01:08:50,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d02f10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:50, skipping insertion in model container [2021-11-07 01:08:50,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:50" (1/1) ... [2021-11-07 01:08:50,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:51,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:51,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-11-07 01:08:52,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:52,960 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:08:52,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:52,992 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-11-07 01:08:53,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:53,248 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:08:53,259 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-11-07 01:08:53,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:53,666 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:08:53,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53 WrapperNode [2021-11-07 01:08:53,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:53,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:53,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:08:53,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:08:53,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:53,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:08:53,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:08:53,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:08:53,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:53,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:54,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:54,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:54,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:08:54,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:08:54,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:08:54,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:08:54,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (1/1) ... [2021-11-07 01:08:54,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:54,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:08:54,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:08:54,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:08:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:08:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:08:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:08:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:08:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:08:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:08:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:08:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:08:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:08:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:08:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:08:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:08:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:08:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:08:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:08:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:08:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:08:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:08:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:08:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:09:02,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:09:02,856 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-11-07 01:09:02,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:02 BoogieIcfgContainer [2021-11-07 01:09:02,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:09:02,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:09:02,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:09:02,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:09:02,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:08:50" (1/3) ... [2021-11-07 01:09:02,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133a3b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:02, skipping insertion in model container [2021-11-07 01:09:02,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:53" (2/3) ... [2021-11-07 01:09:02,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133a3b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:02, skipping insertion in model container [2021-11-07 01:09:02,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:02" (3/3) ... [2021-11-07 01:09:02,870 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-11-07 01:09:02,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:09:02,875 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 296 error locations. [2021-11-07 01:09:02,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:09:02,945 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:09:02,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 296 error locations. [2021-11-07 01:09:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 826 states, 529 states have (on average 1.7807183364839319) internal successors, (942), 825 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:02,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 01:09:02,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:02,990 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 01:09:02,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 292 more)] === [2021-11-07 01:09:02,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:02,996 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-07 01:09:03,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:03,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95942723] [2021-11-07 01:09:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:03,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:03,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:03,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:03,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdfb4e7f-1540-4786-95e3-1bfcd2cd30e4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:09:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:03,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:09:03,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:47,777 WARN L207 SmtUtils]: Spent 1.72 m on a formula simplification. DAG size of input: 3433 DAG size of output: 190 [2021-11-07 01:10:47,788 INFO L354 Elim1Store]: treesize reduction 62478, result has 0.8 percent of original size [2021-11-07 01:10:47,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 47 case distinctions, treesize of input 2174 treesize of output 2515