./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 ............................................................................................................................................ 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_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:59:10,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:59:10,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:59:11,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:59:11,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:59:11,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:59:11,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:59:11,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:59:11,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:59:11,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:59:11,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:59:11,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:59:11,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:59:11,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:59:11,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:59:11,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:59:11,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:59:11,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:59:11,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:59:11,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:59:11,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:59:11,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:59:11,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:59:11,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:59:11,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:59:11,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:59:11,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:59:11,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:59:11,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:59:11,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:59:11,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:59:11,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:59:11,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:59:11,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:59:11,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:59:11,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:59:11,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:59:11,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:59:11,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:59:11,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:59:11,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:59:11,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:59:11,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:59:11,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:59:11,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:59:11,136 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:59:11,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:59:11,136 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:59:11,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:59:11,143 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:59:11,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:59:11,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:59:11,145 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:59:11,145 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:59:11,145 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:59:11,146 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:59:11,146 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:59:11,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:59:11,147 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:59:11,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:59:11,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:59:11,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:59:11,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:59:11,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:59:11,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:59:11,149 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:59:11,149 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:59:11,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:59:11,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:59:11,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:59:11,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:59:11,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:59:11,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:59:11,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:59:11,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:59:11,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:59:11,154 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:59:11,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:59:11,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:59:11,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:59:11,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:59:11,155 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_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 [2021-10-29 04:59:11,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:59:11,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:59:11,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:59:11,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:59:11,465 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:59:11,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-29 04:59:11,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/541053ad3/a2dafb0f20a043c386b5f32d2c1d2844/FLAGd0990010e [2021-10-29 04:59:12,105 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:59:12,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-29 04:59:12,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/541053ad3/a2dafb0f20a043c386b5f32d2c1d2844/FLAGd0990010e [2021-10-29 04:59:12,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/541053ad3/a2dafb0f20a043c386b5f32d2c1d2844 [2021-10-29 04:59:12,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:59:12,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:59:12,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:59:12,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:59:12,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:59:12,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:59:12" (1/1) ... [2021-10-29 04:59:12,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1041a267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:12, skipping insertion in model container [2021-10-29 04:59:12,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:59:12" (1/1) ... [2021-10-29 04:59:12,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:59:12,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:59:12,917 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_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-29 04:59:12,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:59:12,944 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) [2021-10-29 04:59:12,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56880ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:12, skipping insertion in model container [2021-10-29 04:59:12,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:59:12,945 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:59:12,948 INFO L168 Benchmark]: Toolchain (without parser) took 563.78 ms. Allocated memory is still 115.3 MB. Free memory was 73.4 MB in the beginning and 86.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:12,950 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 115.3 MB. Free memory was 91.0 MB in the beginning and 90.9 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:59:12,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.79 ms. Allocated memory is still 115.3 MB. Free memory was 73.2 MB in the beginning and 86.0 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:12,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 115.3 MB. Free memory was 91.0 MB in the beginning and 90.9 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.79 ms. Allocated memory is still 115.3 MB. Free memory was 73.2 MB in the beginning and 86.0 MB in the end (delta: -12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 635]: 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-b2eff8b [2021-10-29 04:59:15,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:59:15,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:59:15,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:59:15,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:59:15,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:59:15,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:59:15,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:59:15,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:59:15,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:59:15,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:59:15,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:59:15,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:59:15,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:59:15,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:59:15,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:59:15,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:59:15,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:59:15,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:59:15,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:59:15,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:59:15,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:59:15,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:59:15,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:59:15,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:59:15,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:59:15,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:59:15,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:59:15,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:59:15,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:59:15,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:59:15,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:59:15,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:59:15,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:59:15,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:59:15,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:59:15,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:59:15,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:59:15,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:59:15,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:59:15,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:59:15,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:59:15,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:59:15,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:59:15,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:59:15,496 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:59:15,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:59:15,497 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:59:15,497 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:59:15,497 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:59:15,497 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:59:15,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:59:15,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:59:15,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:59:15,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:59:15,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:59:15,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:59:15,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:59:15,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:59:15,502 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:59:15,502 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:59:15,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:59:15,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:59:15,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:59:15,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:59:15,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:59:15,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:59:15,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:59:15,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:59:15,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:59:15,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:59:15,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:59:15,505 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:59:15,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:59:15,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:59:15,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:59:15,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:59:15,507 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_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 [2021-10-29 04:59:15,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:59:15,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:59:15,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:59:15,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:59:15,955 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:59:15,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-29 04:59:16,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/433920c57/8c37762f660c459fa6e505ccccd1fa91/FLAGd18e1ad67 [2021-10-29 04:59:16,684 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:59:16,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-29 04:59:16,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/433920c57/8c37762f660c459fa6e505ccccd1fa91/FLAGd18e1ad67 [2021-10-29 04:59:16,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/data/433920c57/8c37762f660c459fa6e505ccccd1fa91 [2021-10-29 04:59:16,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:59:16,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:59:16,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:59:16,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:59:16,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:59:16,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:59:16" (1/1) ... [2021-10-29 04:59:16,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2739f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:16, skipping insertion in model container [2021-10-29 04:59:16,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:59:16" (1/1) ... [2021-10-29 04:59:16,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:59:17,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:59:17,347 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_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-29 04:59:17,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:59:17,374 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:59:17,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:59:17,470 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_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-29 04:59:17,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:59:17,484 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:59:17,551 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_57eaa30a-f310-4426-8a02-74ad5be0861a/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-29 04:59:17,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:59:17,606 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:59:17,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17 WrapperNode [2021-10-29 04:59:17,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:59:17,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:59:17,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:59:17,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:59:17,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:59:17,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:59:17,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:59:17,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:59:17,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:59:17,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:59:17,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:59:17,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:59:17,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (1/1) ... [2021-10-29 04:59:17,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:59:17,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:59:17,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:59:17,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:59:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:59:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:59:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:59:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:59:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:59:18,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:59:18,495 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 04:59:18,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:18 BoogieIcfgContainer [2021-10-29 04:59:18,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:59:18,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:59:18,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:59:18,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:59:18,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:59:16" (1/3) ... [2021-10-29 04:59:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7454f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:59:18, skipping insertion in model container [2021-10-29 04:59:18,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:59:17" (2/3) ... [2021-10-29 04:59:18,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7454f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:59:18, skipping insertion in model container [2021-10-29 04:59:18,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:18" (3/3) ... [2021-10-29 04:59:18,513 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2021-10-29 04:59:18,519 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:59:18,519 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:59:18,591 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:59:18,601 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-10-29 04:59:18,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:59:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 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) [2021-10-29 04:59:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:59:18,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:18,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:18,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:18,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1191041087, now seen corresponding path program 1 times [2021-10-29 04:59:18,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:18,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704409592] [2021-10-29 04:59:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:18,661 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:18,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:18,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:18,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:59:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:18,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:59:18,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:18,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:18,953 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:18,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704409592] [2021-10-29 04:59:18,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704409592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:59:18,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:18,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:59:18,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918186605] [2021-10-29 04:59:18,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:59:18,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:59:18,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:59:18,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:59:18,985 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:59:19,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:59:19,002 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-10-29 04:59:19,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:59:19,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:59:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:59:19,019 INFO L225 Difference]: With dead ends: 45 [2021-10-29 04:59:19,020 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 04:59:19,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:59:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 04:59:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-29 04:59:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-10-29 04:59:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-29 04:59:19,069 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2021-10-29 04:59:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:59:19,070 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-29 04:59:19,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:59:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-29 04:59:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:59:19,072 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:19,072 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:19,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:19,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:19,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:19,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash -942277654, now seen corresponding path program 1 times [2021-10-29 04:59:19,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:19,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812704687] [2021-10-29 04:59:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:19,292 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:19,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:19,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:59:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:19,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:59:19,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:19,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:19,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:19,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812704687] [2021-10-29 04:59:19,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812704687] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:59:19,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:19,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:59:19,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135409286] [2021-10-29 04:59:19,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:59:19,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:59:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:59:19,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:59:19,552 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:59:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:59:19,625 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-10-29 04:59:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:59:19,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:59:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:59:19,633 INFO L225 Difference]: With dead ends: 41 [2021-10-29 04:59:19,633 INFO L226 Difference]: Without dead ends: 32 [2021-10-29 04:59:19,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:59:19,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-29 04:59:19,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-29 04:59:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2021-10-29 04:59:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-10-29 04:59:19,645 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-10-29 04:59:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:59:19,652 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-29 04:59:19,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:59:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-29 04:59:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:59:19,653 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:19,654 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:19,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:19,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:19,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash 239429152, now seen corresponding path program 1 times [2021-10-29 04:59:19,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:19,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988715997] [2021-10-29 04:59:19,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:19,876 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:19,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:19,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:19,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:59:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:19,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 04:59:19,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:20,170 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:20,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-10-29 04:59:20,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-29 04:59:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:20,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:20,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:20,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988715997] [2021-10-29 04:59:20,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988715997] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:59:20,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:20,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 04:59:20,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129580440] [2021-10-29 04:59:20,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:59:20,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:59:20,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:59:20,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:59:20,399 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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) [2021-10-29 04:59:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:59:21,672 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-10-29 04:59:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:59:21,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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 [2021-10-29 04:59:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:59:21,674 INFO L225 Difference]: With dead ends: 44 [2021-10-29 04:59:21,674 INFO L226 Difference]: Without dead ends: 23 [2021-10-29 04:59:21,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:59:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-29 04:59:21,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2021-10-29 04:59:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-10-29 04:59:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-29 04:59:21,678 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2021-10-29 04:59:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:59:21,679 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-29 04:59:21,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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) [2021-10-29 04:59:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 04:59:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:59:21,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:21,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:21,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:21,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:21,881 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:21,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:21,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1232200096, now seen corresponding path program 1 times [2021-10-29 04:59:21,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:21,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680104168] [2021-10-29 04:59:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:21,883 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:21,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:21,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:59:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:59:22,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-29 04:59:22,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:59:22,130 INFO L354 Elim1Store]: treesize reduction 78, result has 28.4 percent of original size [2021-10-29 04:59:22,131 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 3 case distinctions, treesize of input 15 treesize of output 36 [2021-10-29 04:59:22,520 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:59:22,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-29 04:59:25,740 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-10-29 04:59:25,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 82 treesize of output 45 [2021-10-29 04:59:26,032 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-10-29 04:59:26,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-10-29 04:59:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:26,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:26,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12818 treesize of output 12690 [2021-10-29 04:59:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:59:30,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:59:30,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680104168] [2021-10-29 04:59:30,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680104168] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:59:30,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:59:30,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-29 04:59:30,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438248069] [2021-10-29 04:59:30,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:59:30,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:59:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:59:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:59:30,339 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-29 04:59:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:59:30,971 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-29 04:59:30,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:59:30,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 [2021-10-29 04:59:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:59:30,976 INFO L225 Difference]: With dead ends: 31 [2021-10-29 04:59:30,976 INFO L226 Difference]: Without dead ends: 26 [2021-10-29 04:59:30,978 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-29 04:59:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-29 04:59:30,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-10-29 04:59:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-10-29 04:59:30,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-10-29 04:59:30,983 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2021-10-29 04:59:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:59:30,983 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-29 04:59:30,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-29 04:59:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-29 04:59:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:59:30,984 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:59:30,985 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:59:31,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:31,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:31,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:59:31,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:59:31,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1233808810, now seen corresponding path program 1 times [2021-10-29 04:59:31,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:59:31,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971377104] [2021-10-29 04:59:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:59:31,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:59:31,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:59:31,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:59:31,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:59:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:59:31,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:59:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:59:31,630 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:59:31,630 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:59:31,631 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:59:31,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:59:31,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:59:31,836 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 04:59:31,838 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:59:31,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:59:31 BoogieIcfgContainer [2021-10-29 04:59:31,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:59:31,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:59:31,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:59:31,898 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:59:31,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:59:18" (3/4) ... [2021-10-29 04:59:31,899 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:59:31,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:59:31,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:59:31,976 INFO L168 Benchmark]: Toolchain (without parser) took 15052.81 ms. Allocated memory was 67.1 MB in the beginning and 211.8 MB in the end (delta: 144.7 MB). Free memory was 45.2 MB in the beginning and 189.3 MB in the end (delta: -144.2 MB). Peak memory consumption was 104.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,977 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 67.1 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:59:31,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.97 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 40.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 67.1 MB. Free memory was 40.6 MB in the beginning and 38.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,981 INFO L168 Benchmark]: Boogie Preprocessor took 83.41 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 36.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,981 INFO L168 Benchmark]: RCFGBuilder took 743.75 ms. Allocated memory is still 67.1 MB. Free memory was 36.2 MB in the beginning and 43.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,982 INFO L168 Benchmark]: TraceAbstraction took 13397.89 ms. Allocated memory was 67.1 MB in the beginning and 176.2 MB in the end (delta: 109.1 MB). Free memory was 43.0 MB in the beginning and 55.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 95.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,982 INFO L168 Benchmark]: Witness Printer took 77.64 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 55.2 MB in the beginning and 189.3 MB in the end (delta: -134.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:59:31,985 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 67.1 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 682.97 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 40.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 67.1 MB. Free memory was 40.6 MB in the beginning and 38.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.41 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 36.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 743.75 ms. Allocated memory is still 67.1 MB. Free memory was 36.2 MB in the beginning and 43.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13397.89 ms. Allocated memory was 67.1 MB in the beginning and 176.2 MB in the end (delta: 109.1 MB). Free memory was 43.0 MB in the beginning and 55.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 95.8 MB. Max. memory is 16.1 GB. * Witness Printer took 77.64 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 55.2 MB in the beginning and 189.3 MB in the end (delta: -134.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 667]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={-2147483648:0}] [L665] int j = __VERIFIER_nondet_int(); [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND FALSE !(&m->list != (s)) VAL [s1={-2147483648:0}] [L657] return 0; VAL [s1={-2147483648:0}] [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [s1={-2147483648:0}] [L578] return ptr; VAL [s1={-2147483648:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L605] head->next [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new VAL [s1={-2147483648:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND TRUE &m->list != (s) [L653] EXPR m->e VAL [s1={-2147483648:0}] [L653] COND TRUE m->e == e [L654] return 1; VAL [s1={-2147483648:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] reach_error() VAL [s1={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 132 SDslu, 88 SDs, 0 SdLazy, 54 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 6 QuantifiedInterpolants, 514 SizeOfPredicates, 48 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:59:32,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57eaa30a-f310-4426-8a02-74ad5be0861a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...