./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH --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 b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:17:28,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:17:28,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:17:28,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:17:28,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:17:28,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:17:28,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:17:28,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:17:28,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:17:28,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:17:28,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:17:28,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:17:28,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:17:28,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:17:28,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:17:28,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:17:28,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:17:28,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:17:28,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:17:28,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:17:28,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:17:28,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:17:28,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:17:28,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:17:28,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:17:28,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:17:28,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:17:28,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:17:28,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:17:28,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:17:28,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:17:28,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:17:28,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:17:28,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:17:28,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:17:28,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:17:28,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:17:28,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:17:28,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:17:28,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:17:28,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:17:28,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:17:28,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:17:28,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:17:28,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:17:28,593 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:17:28,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:17:28,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:17:28,594 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:17:28,594 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:17:28,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:17:28,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:17:28,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:17:28,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:17:28,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:17:28,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:17:28,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:17:28,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:17:28,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:17:28,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:17:28,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:17:28,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:17:28,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:17:28,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:17:28,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:17:28,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:17:28,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:17:28,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:17:28,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:17:28,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:17:28,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:17:28,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:17:28,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:17:28,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:17:28,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:17:28,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:17:28,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:17:28,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:17:28,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:17:28,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:17:28,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:17:28,607 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a [2021-11-03 05:17:29,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:17:29,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:17:29,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:17:29,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:17:29,052 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:17:29,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2021-11-03 05:17:29,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/41dca470f/d0c6d1df685947b086f3acd22ba4a853/FLAG7163856a2 [2021-11-03 05:17:29,800 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:17:29,801 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2021-11-03 05:17:29,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/41dca470f/d0c6d1df685947b086f3acd22ba4a853/FLAG7163856a2 [2021-11-03 05:17:30,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/41dca470f/d0c6d1df685947b086f3acd22ba4a853 [2021-11-03 05:17:30,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:17:30,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:17:30,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:17:30,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:17:30,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:17:30,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:17:30" (1/1) ... [2021-11-03 05:17:30,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86b6f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:30, skipping insertion in model container [2021-11-03 05:17:30,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:17:30" (1/1) ... [2021-11-03 05:17:30,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:17:30,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:17:30,417 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2021-11-03 05:17:30,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:17:30,467 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:17:30,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2be7d8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:30, skipping insertion in model container [2021-11-03 05:17:30,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:17:30,469 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:17:30,471 INFO L168 Benchmark]: Toolchain (without parser) took 317.51 ms. Allocated memory is still 115.3 MB. Free memory was 73.5 MB in the beginning and 91.7 MB in the end (delta: -18.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:17:30,472 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 89.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:17:30,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.25 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 92.0 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:17:30,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 89.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.25 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 92.0 MB in the end (delta: -18.7 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: 25]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH --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 b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:17:33,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:17:33,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:17:33,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:17:33,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:17:33,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:17:33,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:17:33,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:17:33,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:17:33,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:17:33,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:17:33,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:17:33,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:17:33,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:17:33,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:17:33,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:17:33,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:17:33,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:17:33,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:17:33,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:17:33,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:17:33,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:17:33,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:17:33,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:17:33,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:17:33,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:17:33,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:17:33,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:17:33,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:17:33,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:17:33,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:17:33,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:17:33,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:17:33,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:17:33,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:17:33,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:17:33,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:17:33,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:17:33,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:17:33,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:17:33,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:17:33,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:17:33,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:17:33,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:17:33,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:17:33,461 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:17:33,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:17:33,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:17:33,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:17:33,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:17:33,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:17:33,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:17:33,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:17:33,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:17:33,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:17:33,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:17:33,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:17:33,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:17:33,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:17:33,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:17:33,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:17:33,466 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:17:33,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:17:33,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:17:33,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:17:33,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:17:33,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:17:33,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:17:33,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:17:33,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:17:33,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:17:33,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:17:33,470 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:17:33,470 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:33,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:17:33,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:17:33,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:17:33,471 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a [2021-11-03 05:17:33,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:17:34,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:17:34,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:17:34,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:17:34,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:17:34,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2021-11-03 05:17:34,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/9b2735812/652375db73cb4f619e8ab85f602f47c2/FLAG9ddc3d554 [2021-11-03 05:17:34,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:17:34,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2021-11-03 05:17:34,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/9b2735812/652375db73cb4f619e8ab85f602f47c2/FLAG9ddc3d554 [2021-11-03 05:17:35,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/data/9b2735812/652375db73cb4f619e8ab85f602f47c2 [2021-11-03 05:17:35,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:17:35,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:17:35,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:17:35,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:17:35,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:17:35,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cacdc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35, skipping insertion in model container [2021-11-03 05:17:35,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:17:35,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:17:35,400 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2021-11-03 05:17:35,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:17:35,435 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:17:35,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:17:35,444 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2021-11-03 05:17:35,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:17:35,457 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:17:35,504 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_8d98d483-b66b-43a2-9ff5-8f406a47a834/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2021-11-03 05:17:35,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:17:35,555 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:17:35,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35 WrapperNode [2021-11-03 05:17:35,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:17:35,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:17:35,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:17:35,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:17:35,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:17:35,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:17:35,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:17:35,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:17:35,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:17:35,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:17:35,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:17:35,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:17:35,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (1/1) ... [2021-11-03 05:17:35,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:17:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:17:35,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:17:35,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:17:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:17:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:17:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:17:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:17:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:17:36,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:17:36,162 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-03 05:17:36,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:17:36 BoogieIcfgContainer [2021-11-03 05:17:36,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:17:36,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:17:36,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:17:36,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:17:36,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:17:35" (1/3) ... [2021-11-03 05:17:36,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6273fad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:17:36, skipping insertion in model container [2021-11-03 05:17:36,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:17:35" (2/3) ... [2021-11-03 05:17:36,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6273fad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:17:36, skipping insertion in model container [2021-11-03 05:17:36,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:17:36" (3/3) ... [2021-11-03 05:17:36,184 INFO L111 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2021-11-03 05:17:36,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:17:36,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:17:36,268 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:17:36,276 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 [2021-11-03 05:17:36,277 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:17:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:17:36,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:36,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:36,303 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2060710478, now seen corresponding path program 1 times [2021-11-03 05:17:36,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:36,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409658586] [2021-11-03 05:17:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:36,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:36,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:36,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:36,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:17:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:36,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:17:36,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:36,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:36,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:36,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409658586] [2021-11-03 05:17:36,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409658586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:17:36,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:17:36,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:17:36,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043920677] [2021-11-03 05:17:36,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:17:36,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:36,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:17:36,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:17:36,706 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:36,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:36,727 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-11-03 05:17:36,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:17:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:17:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:36,741 INFO L225 Difference]: With dead ends: 36 [2021-11-03 05:17:36,741 INFO L226 Difference]: Without dead ends: 16 [2021-11-03 05:17:36,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:17:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-03 05:17:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-03 05:17:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2021-11-03 05:17:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-03 05:17:36,786 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2021-11-03 05:17:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:36,788 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-03 05:17:36,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-03 05:17:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:17:36,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:36,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:36,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:37,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:17:37,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1919336157, now seen corresponding path program 1 times [2021-11-03 05:17:37,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:37,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524711379] [2021-11-03 05:17:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:37,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:37,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:37,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:17:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:37,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:17:37,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:37,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:37,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:37,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524711379] [2021-11-03 05:17:37,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524711379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:17:37,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:17:37,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:17:37,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765632266] [2021-11-03 05:17:37,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:17:37,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:17:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:17:37,344 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:37,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:37,401 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-03 05:17:37,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:17:37,403 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 10 [2021-11-03 05:17:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:37,406 INFO L225 Difference]: With dead ends: 31 [2021-11-03 05:17:37,409 INFO L226 Difference]: Without dead ends: 19 [2021-11-03 05:17:37,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:17:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-03 05:17:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-03 05:17:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-03 05:17:37,423 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2021-11-03 05:17:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:37,424 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-03 05:17:37,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-03 05:17:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:17:37,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:37,433 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:37,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:37,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:17:37,647 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:37,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1315497119, now seen corresponding path program 1 times [2021-11-03 05:17:37,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:37,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376248098] [2021-11-03 05:17:37,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:37,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:37,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:37,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:17:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:37,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:17:37,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:37,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:37,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:38,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:38,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376248098] [2021-11-03 05:17:38,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376248098] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:38,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1660513023] [2021-11-03 05:17:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:38,105 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:38,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:17:38,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:17:38,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 05:17:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:38,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:17:38,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:38,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:17:38,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1660513023] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:38,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810691940] [2021-11-03 05:17:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:38,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:38,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:17:38,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:17:38,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:17:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:38,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:17:38,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:17:38,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:17:38,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810691940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:17:38,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 05:17:38,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-03 05:17:38,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830899216] [2021-11-03 05:17:38,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:17:38,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:17:38,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:17:38,749 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:38,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:38,807 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-11-03 05:17:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:17:38,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-11-03 05:17:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:38,810 INFO L225 Difference]: With dead ends: 39 [2021-11-03 05:17:38,810 INFO L226 Difference]: Without dead ends: 31 [2021-11-03 05:17:38,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:17:38,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-03 05:17:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-11-03 05:17:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-11-03 05:17:38,816 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2021-11-03 05:17:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:38,819 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-11-03 05:17:38,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:38,820 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-11-03 05:17:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:17:38,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:38,823 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:38,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:39,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:39,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:39,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:39,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:39,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2030845279, now seen corresponding path program 1 times [2021-11-03 05:17:39,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:39,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242045782] [2021-11-03 05:17:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:39,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:39,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:39,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:39,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:17:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:39,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:17:39,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:39,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:39,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:39,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242045782] [2021-11-03 05:17:39,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242045782] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:39,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1198222661] [2021-11-03 05:17:39,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:39,900 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:39,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:17:39,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:17:39,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-03 05:17:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:40,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:17:40,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:17:40,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:17:40,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1198222661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:17:40,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:17:40,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-03 05:17:40,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926784496] [2021-11-03 05:17:40,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:17:40,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:17:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:17:40,228 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:40,246 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-11-03 05:17:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:17:40,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-03 05:17:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:40,248 INFO L225 Difference]: With dead ends: 42 [2021-11-03 05:17:40,249 INFO L226 Difference]: Without dead ends: 23 [2021-11-03 05:17:40,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:17:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-03 05:17:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-03 05:17:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2021-11-03 05:17:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-11-03 05:17:40,254 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2021-11-03 05:17:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:40,255 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-11-03 05:17:40,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-11-03 05:17:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:17:40,256 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:40,256 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:40,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:40,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:40,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:40,676 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:40,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2139127327, now seen corresponding path program 1 times [2021-11-03 05:17:40,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:40,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534574616] [2021-11-03 05:17:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:40,678 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:40,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:40,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:40,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:17:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:40,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:17:40,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:40,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:41,106 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:41,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534574616] [2021-11-03 05:17:41,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534574616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:41,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2134649575] [2021-11-03 05:17:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:41,107 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:41,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:17:41,112 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:17:41,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 05:17:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:41,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:17:41,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:41,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 05:17:41,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2134649575] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:41,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152375893] [2021-11-03 05:17:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:41,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:41,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:17:41,525 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:17:41,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:17:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:41,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:17:41,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:17:42,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:43,296 INFO L354 Elim1Store]: treesize reduction 7, result has 41.7 percent of original size [2021-11-03 05:17:43,297 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 40 treesize of output 33 [2021-11-03 05:17:43,317 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 05:17:43,317 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 29 treesize of output 17 [2021-11-03 05:17:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:17:43,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152375893] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:43,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:17:43,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 8, 7] total 19 [2021-11-03 05:17:43,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236144775] [2021-11-03 05:17:43,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 05:17:43,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:43,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 05:17:43,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-11-03 05:17:43,384 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:44,098 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-11-03 05:17:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:17:44,099 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-03 05:17:44,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:44,100 INFO L225 Difference]: With dead ends: 54 [2021-11-03 05:17:44,100 INFO L226 Difference]: Without dead ends: 38 [2021-11-03 05:17:44,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-03 05:17:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-03 05:17:44,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-11-03 05:17:44,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:44,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-11-03 05:17:44,108 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 20 [2021-11-03 05:17:44,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:44,109 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-11-03 05:17:44,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-11-03 05:17:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 05:17:44,111 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:44,111 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:44,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:44,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 05:17:44,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:44,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:44,725 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:44,726 INFO L85 PathProgramCache]: Analyzing trace with hash 225697560, now seen corresponding path program 1 times [2021-11-03 05:17:44,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:44,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958660047] [2021-11-03 05:17:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:44,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:44,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:44,728 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:44,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:17:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:44,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:17:44,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 05:17:45,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 05:17:45,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:45,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958660047] [2021-11-03 05:17:45,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958660047] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:45,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1670257289] [2021-11-03 05:17:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:45,699 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:45,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:17:45,709 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:17:45,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 05:17:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:46,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:17:46,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 05:17:46,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:46,385 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 05:17:46,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1670257289] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:46,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067581189] [2021-11-03 05:17:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:17:46,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:17:46,391 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:17:46,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 05:17:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:17:46,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:17:46,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-03 05:17:46,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-03 05:17:47,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067581189] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:47,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:17:47,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 5, 5] total 22 [2021-11-03 05:17:47,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104150610] [2021-11-03 05:17:47,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-03 05:17:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-03 05:17:47,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:17:47,030 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:48,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:17:48,515 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2021-11-03 05:17:48,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 05:17:48,515 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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 33 [2021-11-03 05:17:48,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:17:48,517 INFO L225 Difference]: With dead ends: 112 [2021-11-03 05:17:48,517 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 05:17:48,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2021-11-03 05:17:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 05:17:48,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 62. [2021-11-03 05:17:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.0491803278688525) internal successors, (64), 61 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:48,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2021-11-03 05:17:48,530 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 33 [2021-11-03 05:17:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:17:48,531 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2021-11-03 05:17:48,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:17:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2021-11-03 05:17:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 05:17:48,533 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:17:48,534 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:17:48,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:48,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:48,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:17:49,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:49,141 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:17:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:17:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash 616513032, now seen corresponding path program 2 times [2021-11-03 05:17:49,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:17:49,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104180137] [2021-11-03 05:17:49,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:17:49,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:17:49,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:17:49,144 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:17:49,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:17:49,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:17:49,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:17:49,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:17:49,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-03 05:17:50,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-03 05:17:51,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:51,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104180137] [2021-11-03 05:17:51,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104180137] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:51,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1055268377] [2021-11-03 05:17:51,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:17:51,922 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:17:51,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:17:51,924 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:17:51,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 05:17:52,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:17:52,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:17:52,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:17:52,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-03 05:17:53,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-03 05:17:53,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1055268377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:53,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245005701] [2021-11-03 05:17:53,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:17:53,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:17:53,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:17:53,284 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:17:53,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 05:17:53,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:17:53,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:17:53,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:17:53,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:17:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-03 05:17:55,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:17:56,835 INFO L354 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2021-11-03 05:17:56,835 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 44 treesize of output 35 [2021-11-03 05:17:56,845 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 05:17:56,846 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 31 treesize of output 17 [2021-11-03 05:17:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-03 05:17:57,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245005701] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:17:57,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:17:57,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17, 17, 11, 10] total 49 [2021-11-03 05:17:57,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679924366] [2021-11-03 05:17:57,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-03 05:17:57,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:57,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-03 05:17:57,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2021-11-03 05:17:57,094 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:18:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:18:04,991 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2021-11-03 05:18:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-03 05:18:04,992 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 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 61 [2021-11-03 05:18:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:18:04,993 INFO L225 Difference]: With dead ends: 134 [2021-11-03 05:18:04,994 INFO L226 Difference]: Without dead ends: 103 [2021-11-03 05:18:04,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1199, Invalid=5941, Unknown=0, NotChecked=0, Total=7140 [2021-11-03 05:18:04,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-03 05:18:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2021-11-03 05:18:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.030612244897959) internal successors, (101), 98 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:18:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2021-11-03 05:18:05,015 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 61 [2021-11-03 05:18:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:18:05,016 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2021-11-03 05:18:05,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:18:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2021-11-03 05:18:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 05:18:05,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:18:05,021 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 6, 6, 6, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:18:05,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:18:05,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 05:18:05,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-03 05:18:05,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:18:05,643 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:18:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:18:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 333100921, now seen corresponding path program 3 times [2021-11-03 05:18:05,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:18:05,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184190987] [2021-11-03 05:18:05,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:18:05,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:18:05,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:18:05,665 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:18:05,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 05:18:06,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-03 05:18:06,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:18:06,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:18:06,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:18:07,398 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-03 05:18:08,192 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:18:08,193 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 31 treesize of output 31 [2021-11-03 05:18:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:18:08,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:18:09,620 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 72 treesize of output 64 [2021-11-03 05:18:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:18:28,944 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:18:28,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184190987] [2021-11-03 05:18:28,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184190987] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:18:28,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1335491226] [2021-11-03 05:18:28,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:18:28,944 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:18:28,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:18:28,945 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:18:28,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-03 05:18:29,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-03 05:18:29,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:18:29,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:18:29,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:18:30,925 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-03 05:18:31,400 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:18:31,401 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 31 treesize of output 31 [2021-11-03 05:18:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:18:31,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:18:32,213 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 72 treesize of output 64 [2021-11-03 05:18:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:18:50,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1335491226] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:18:50,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8663209] [2021-11-03 05:18:50,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:18:50,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:18:50,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:18:50,436 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:18:50,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-03 05:18:51,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-03 05:18:51,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:18:51,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:18:51,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:18:52,539 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-03 05:18:52,988 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:18:52,989 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 31 treesize of output 31 [2021-11-03 05:18:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:18:53,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:18:53,624 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 72 treesize of output 64 [2021-11-03 05:19:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-11-03 05:19:11,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8663209] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:19:11,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:19:11,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-11-03 05:19:11,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620274077] [2021-11-03 05:19:11,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:19:11,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:11,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:19:11,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:19:11,596 INFO L87 Difference]: Start difference. First operand 99 states and 101 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:13,002 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2021-11-03 05:19:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:19:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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 98 [2021-11-03 05:19:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:13,005 INFO L225 Difference]: With dead ends: 99 [2021-11-03 05:19:13,005 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 05:19:13,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:19:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 05:19:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 05:19:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 05:19:13,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2021-11-03 05:19:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:13,017 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 05:19:13,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 05:19:13,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 05:19:13,021 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:19:13,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:13,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:13,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2021-11-03 05:19:13,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:19:13,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 05:19:13,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:19:13,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:19:13,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:19:13,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:19:14,835 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L853 garLoopResultBuilder]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse11 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|)) (.cse9 (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0.base|))) (let ((.cse0 (= ULTIMATE.start_init_~size (_ bv100000 32))) (.cse7 (= (select .cse9 |ULTIMATE.start_main_~#a~0.offset|) (_ bv0 32))) (.cse1 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse2 (= ULTIMATE.start_init_~a.offset |ULTIMATE.start_main_~#a~0.offset|)) (.cse8 (= (select .cse11 |ULTIMATE.start_main_~#a~0.offset|) (_ bv0 32))) (.cse3 (not (= (select .cse11 (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32)))) (.cse4 (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) ULTIMATE.start_init_~size)) (.cse5 (exists ((ULTIMATE.start_init_~i~0 (_ BitVec 32))) (and (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) (_ bv100000 32)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32))) (not (bvslt ULTIMATE.start_init_~i~0 (_ bv100000 32)))))) (.cse6 (= |ULTIMATE.start_main_~#a~0.offset| (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~i~1 (_ bv0 32)) .cse6) (and .cse0 (= ULTIMATE.start_main_~i~1 (_ bv1 32)) .cse7 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6) (let ((.cse10 (bvadd (_ bv4 32) |ULTIMATE.start_main_~#a~0.offset|))) (and (= (select .cse9 .cse10) (_ bv0 32)) .cse0 .cse7 .cse1 (= (select .cse11 .cse10) (_ bv0 32)) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~i~1) (_ bv100000 32)) .cse2 .cse8 .cse3 .cse4 (exists ((ULTIMATE.start_init_~i~0 (_ BitVec 32))) (and (not (= (bvmul (_ bv4 32) ULTIMATE.start_init_~i~0) (bvmul (_ bv4 32) ULTIMATE.start_main_~i~1))) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) (_ bv100000 32)) (not (bvslt ULTIMATE.start_init_~i~0 (_ bv100000 32))))) .cse5 .cse6)) (= (_ bv1 32) ULTIMATE.start_main_~flag~0)))) [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L853 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_init_~size (_ bv100000 32))) (.cse1 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse2 (= ULTIMATE.start_init_~a.offset |ULTIMATE.start_main_~#a~0.offset|)) (.cse3 (= |ULTIMATE.start_main_~#a~0.offset| (_ bv0 32)))) (or (and .cse0 .cse1 (= ULTIMATE.start_init_~i~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 .cse2 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32))) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) ULTIMATE.start_init_~size) .cse3))) [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-11-03 05:19:14,836 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L853 garLoopResultBuilder]: At program point L42-3(lines 42 46) the Hoare annotation is: (not (= (_ bv0 32) ULTIMATE.start_main_~flag~0)) [2021-11-03 05:19:14,837 INFO L857 garLoopResultBuilder]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2021-11-03 05:19:14,837 INFO L860 garLoopResultBuilder]: At program point L47(lines 28 48) the Hoare annotation is: true [2021-11-03 05:19:14,841 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2021-11-03 05:19:14,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:19:14,855 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,860 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,865 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,867 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,867 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,870 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,870 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,872 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,878 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,878 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,879 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,879 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,879 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,880 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,881 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,882 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,882 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,882 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,883 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,883 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,884 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:19:14 BoogieIcfgContainer [2021-11-03 05:19:14,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:19:14,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:19:14,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:19:14,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:19:14,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:17:36" (3/4) ... [2021-11-03 05:19:14,895 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 05:19:14,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-03 05:19:14,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-03 05:19:14,908 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:19:14,908 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:19:14,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((size == 100000bv32 && a == a) && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && i == 0bv32) && a == 0bv32) || (((((((((size == 100000bv32 && i == 1bv32) && #memory_$Pointer$[a][a] == 0bv32) && a == a) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && a == 0bv32)) || ((((((((((((#memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32 && size == 100000bv32) && #memory_$Pointer$[a][a] == 0bv32) && a == a) && #memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32) && ~bvslt32(~bvadd64(4294967295bv32, i), 100000bv32)) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!(~bvmul32(4bv32, ULTIMATE.start_init_~i~0) == ~bvmul32(4bv32, i)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && a == 0bv32)) || 1bv32 == flag [2021-11-03 05:19:14,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:19:14,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:19:14,957 INFO L168 Benchmark]: Toolchain (without parser) took 99780.26 ms. Allocated memory was 67.1 MB in the beginning and 109.1 MB in the end (delta: 41.9 MB). Free memory was 45.9 MB in the beginning and 33.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,957 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:19:14,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.93 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 49.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.25 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:19:14,959 INFO L168 Benchmark]: Boogie Preprocessor took 70.90 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 46.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,959 INFO L168 Benchmark]: RCFGBuilder took 481.55 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 35.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,960 INFO L168 Benchmark]: TraceAbstraction took 98713.23 ms. Allocated memory was 67.1 MB in the beginning and 109.1 MB in the end (delta: 41.9 MB). Free memory was 35.2 MB in the beginning and 36.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,961 INFO L168 Benchmark]: Witness Printer took 66.21 ms. Allocated memory is still 109.1 MB. Free memory was 36.5 MB in the beginning and 33.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:14,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.93 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 49.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.25 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.90 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 46.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 481.55 ms. Allocated memory is still 67.1 MB. Free memory was 46.3 MB in the beginning and 35.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 98713.23 ms. Allocated memory was 67.1 MB in the beginning and 109.1 MB in the end (delta: 41.9 MB). Free memory was 35.2 MB in the beginning and 36.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.21 ms. Allocated memory is still 109.1 MB. Free memory was 36.5 MB in the beginning and 33.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] * 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 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 98.5s, OverallIterations: 8, TraceHistogramMax: 30, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 304 SDslu, 537 SDs, 0 SdLazy, 1738 SolverSat, 139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1500 GetRequests, 1322 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=7, InterpolantAutomatonStates: 107, 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, 8 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 46 NumberOfFragments, 298 HoareAnnotationTreeSize, 4 FomulaSimplifications, 2137 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 132 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 75.1s InterpolantComputationTime, 738 NumberOfCodeBlocks, 534 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1438 ConstructedInterpolants, 294 QuantifiedInterpolants, 15219 SizeOfPredicates, 103 NumberOfNonLiveVariables, 1985 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 38 InterpolantComputations, 8 PerfectInterpolantSequences, 6165/7650 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant [2021-11-03 05:19:14,994 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,995 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((size == 100000bv32 && a == a) && i == 0bv32) && a == a) && a == 0bv32) || (((((size == 100000bv32 && a == a) && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && a == 0bv32) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: !(0bv32 == flag) - InvariantResult [Line: 35]: Loop Invariant [2021-11-03 05:19:14,995 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,996 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,996 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,996 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,997 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,998 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:14,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,998 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:14,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:14,999 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,000 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,001 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,001 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,004 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,004 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,005 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:15,006 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,006 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,006 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,007 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,007 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,007 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:15,008 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-03 05:19:15,008 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,008 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,009 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,010 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-03 05:19:15,010 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-11-03 05:19:15,010 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] Derived loop invariant: (((((((((size == 100000bv32 && a == a) && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && i == 0bv32) && a == 0bv32) || (((((((((size == 100000bv32 && i == 1bv32) && #memory_$Pointer$[a][a] == 0bv32) && a == a) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && a == 0bv32)) || ((((((((((((#memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32 && size == 100000bv32) && #memory_$Pointer$[a][a] == 0bv32) && a == a) && #memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32) && ~bvslt32(~bvadd64(4294967295bv32, i), 100000bv32)) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!(~bvmul32(4bv32, ULTIMATE.start_init_~i~0) == ~bvmul32(4bv32, i)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 100000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && !~bvslt32(ULTIMATE.start_init_~i~0, 100000bv32))) && a == 0bv32)) || 1bv32 == flag RESULT: Ultimate proved your program to be correct! [2021-11-03 05:19:15,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d98d483-b66b-43a2-9ff5-8f406a47a834/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE